spac 534 c and spac 634 c feeder terminal · 2018. 5. 9. · the remote control system, and it also...
TRANSCRIPT
L1 IRF
>I
L2I L3II
1309
[ ]sk
>t0.5
0.05 1.0
13
2.5
0.5
0.04 1.0
0.5
1.5
2.5
STEP
RESET
SG1
0 1
1234567820
STEP
>>I
nI>I
nI>>I
>>t [ ]s
>I >>I
SPCJ 3C3
B
IRF
911B SPTO 6D3
O I
R
L
SG1
12
0 1
I
STEP
U
I
[kA]
[A]
[kV]
O I
TEST
INTERLOCK
O
I [MW]
[Mvar]
[GWh, MWh, kWh]
P
Q
E
OPTION
I, U, P, Q, E
I, U
RS 232
GAS PRESSURE
MOTOR VOLTAGE
1224
Uaux80...265 V –
30...80 V –
2
5
0 000
U1
SPCJ 3C3
/ >tt
n/II
n )( >I
n )( >>I
12345 >>/ tt
%[ ]%[ ]
Ser.No.
963D RS 615
fn = 50Hz
60Hz
U2
0 000
SPCU 1C6
12345
/ >tt %[ ]>>/tt %[ ]
n ( )Uo
SGR
87654321
1 0
SPAC 534 C
nI = /1 5 A( )I
nU /= V( )U100 110 o
0 000
SPCU 3C14
12345678
/ >tt %[ ]</tt %[ ]
%[ ]/ nU Uon ( )U >o
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n ( )U >n ( )U <
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IRF
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0.5
0.05 1.0
50
10
0.5
0.05 1.0
2
10
20
STEP
RESET
SG1
0 1
12345678
>U >>U
SPCU 1C6
B
>>
[ ]s>>t
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nU>U o
nUUo 80
o o
[ ]%
[ ]%
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STEP
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RESET
SG1
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12345678
<U
nU>U
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SPCU 3C14
B
nU<U
1.2
STEP
L1 IRF
>I
L2I L3II
1309
[ ]sk
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0.05 1.0
13
2.5
0.5
0.04 1.0
0.5
1.5
2.5
STEP
RESET
SG1
0 1
1234567820
STEP
>>I
nI>I
nI>>I
>>t [ ]s
>I >>I
SPCJ 3C3
B
1107
Uaux
IRF
911B SPTO 6D3
O I
R
L
SG1
12
0 1
I
STEP
U
I
[kA]
[A]
[kV]
O I
TEST
INTERLOCK
O
I [MW]
[Mvar]
[GWh, MWh, kWh]
P
Q
E
OPTION
I, U, P, Q, E
I, U
RS 232
1224
GAS PRESSURE
MOTOR VOLTAGE
80...265 V –
30...80 V –
2
5
Ser.No.
1118 RS 616
SGR
87654321
1 0
SPAC 634 C
nI = /1 5 A( )I
nU /= V( )U100 110
nU /= V( )U100 110 o
U1
0 000
SPCJ 3C3U2
0 000
SPCU 1C6
1
2
3
4
5
U3
0 000
SPCU 3C14
1
2
3
4
5
6
7
8
fn = 50 60 Hz
Uaux
n/ II
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/ >tt %[ ]>>/tt %[ ]
/ >tt %[ ]</ tt %[ ]
[ ]%/ nU Uon ( )U >on ( )U o>>
n ( )U >
n ( )U <
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U / nUmax
/ nUU >
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1
2
3
4
5
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IRF
1310
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0.5
0.05 1.0
50
10
0.5
0.05 1.0
2
10
20
STEP
RESET
SG1
0 1
12345678
>U >>U
SPCU 1C6
B
>>
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nUUo 80
o o
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[ ]%
U
STEP
12 IRF
>U
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1315
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0.8
0.4
5.0
1.0 12
0.8
1.2
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RESET
SG1
0 1
12345678
<U
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SPCU 3C14
B
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1.2
STEP
SPAC 534 C and SPAC 634 CFeeder terminal
User´s manual and Technical description
2
SPAC 534 CSPAC 634 C
Feeder terminal
Contents Features .......................................................................................................................... 3Area of application .......................................................................................................... 3Description of function .................................................................................................. 5
Design ....................................................................................................................... 5Protection functions .................................................................................................. 8Auto-reclosing functions .......................................................................................... 10Control functions .................................................................................................... 10Measurement functions ........................................................................................... 11Serial communication .............................................................................................. 12Auxiliary power supply ............................................................................................ 12
Mounting and dimension drawings .............................................................................. 12Connection diagram ..................................................................................................... 14Signal communication between modules ...................................................................... 18Terminals and wiring.................................................................................................... 22Start-up ........................................................................................................................ 23Applications .................................................................................................................. 24Technical data .............................................................................................................. 30Maintenance and repairs ............................................................................................... 35Exchange and spare parts .............................................................................................. 35Delivery alternatives ..................................................................................................... 36Order information ........................................................................................................ 38
The user´s manual for the feeder terminal SPAC 534 C / SPAC 634 C is composedof the following partial manuals:
General description 1MRS 751299-MUM ENControl module SPTO 6D3 1MRS 750202-MUM ENGeneral characteristics of C-type relay modules 1MRS 750328-MUM ENOvercurrent relay module SPCJ 3C3 1MRS 750602-MUM ENResidual overvoltage relay module SPCU 1C6 1MRS 750509-MUM ENOvervoltage and undervoltage relay module SPCU 3C14 1MRS 750510-MUM EN
1MRS 751299-MUM EN
Issued 2000-10-04Version AChecked PSApproved TLK
Data subject to change without notice
3
Features Combined feeder-specific protection functions,measuring and interlock logics, and a data com-munications unit, i.e. a so-called feeder terminal.
Application-specific programmable status indi-cation and feeder-specific interlock logic.
Local and remote status indication of sevenobjects and local or remote control of six objects.
A feeder terminal replaces traditional protectiverelays, measurement value transducers, positionindicators, and intermittent relays for remote use.
The feeder terminals can be connected to anoptical SPA bus, to a station level data gatheringand reporting system, and also to a remoteoperation system.
Seven user-programmable binary inputs withlocal and remote indication.
Measurement and indication of phase currents,phase-to-phase voltages, energy, and active andreactive power.
Maximum system reliability supported by con-tinuous self-supervision and a self-diagnosticsystem.
A cost-effective solution for designing, install-ing, using, and testing electric stations.
Area ofapplication
The feeder terminals SPAC 534 C and SPAC634 C is designed to be used as a cubicle-basedprotection and remote control interface unit. Inaddition to protection, control, and measure-ment functions, the feeder terminal incorpo-rates the data communication properties neededfor remote control of the feeder. The connec-tion to a station level communications and
reporting system is implemented by using afiber-optic serial bus.
The feeder terminals are available in two me-chanical designs, in a 19 inch 3U subrack forSPAC 534 C and a half of a full width 19 inch6U subrack for SPAC 634 C.
OPTIC SPA-BUS
SUBSTATION OF REMOTE CONTROL SYSTEM
CONTROL ROOMCONNECTION
FEEDER TERMINALE.G. SPAC 531 C
FEEDER TERMINALE.G. SPAC 531 C
FEEDER TERMINALE.G. SPAC 534 C4
FEEDER TERMINAL E.G. SPAC 531 C
Figure 1. A distributed protection and control system based on SPAC 534 C feeder terminals.The input and output feeders use SPAC 531 C feeder terminals. The SPAC 534 C4 feeder terminalis used for voltage control of the subrack.
4
The feeder terminals is used for short-circuitprotection of the subrack and for controllingneutral and phase-to-phase voltages. Overcur-rent protection is based on a 3-phase overcur-rent module SPCJ 3C3. The neutral voltage ofthe subrack is measured with a two-stage over-current module SPCU 1C6. The 3-phase overand undervoltage module SPCU 3C14 is usedfor controlling phase-to-phase voltages.
The control module SPTO 6D3 included in thefeeder terminal indicates the status of sevendisconnectors or circuit breakers locally by meansof LED indicators. Furthermore, the moduleallows status information from the circuit break-ers and the disconnectors to be transmitted tothe remote control system, and it also allows sixobjects to be opened and closed over the remotecontrol system. The status information and thecontrol signals are transmitted over the serialbus. Local control is also possible by using thepush buttons on the front panel of the controlmodule.
Auto-reclosing automatics for the output areintegrated into the control module. Five succes-sive quick and/or timed auto-reclose cycles canbe carried out.
The control module measures and indicates thethree phase currents and the three phase-to-phase voltages. Active and reactive power can bemeasured by two mA inputs or by using theinternal current and voltage signals. When themA inputs are used, external measuring trans-ducers are needed.
Energy can be calculated on the basis of themeasured power values or by using an externalenergy pulse counter. The measured values,scaled as primary values, can be indicated locallyand transmitted to upper system levels via theserial bus.
The overcurrent, neutral voltage, and over andundervoltage modules measure the three phasecurrents, the neutral current, and the threephase-to-phase voltages. All the values meas-ured and recorded by the protective relays aredisplayed locally and can be transmitted to theupper system levels over the SPA serial bus.
PROTECTION
- OVERCURRENT- RESIDUAL VOLTAGE- OVERVOLTAGE- UNDERVOLTAGE
MEASUREMENT
- PHASE CURRENTS- PHASE-TO-PHASE VOLTAGES- ACTIVE AND REACTIVE POWER- ENERGY
CONTROL
- CB AND ISOLATOR STATUS- LOCAL AND REMOTE CONTROL- MIMIC DISPLAY- INTERLOCKING
AUTOMATION
- AUTORECLOSING
3I>
U
O -> I
O <-> I
READY
SIGNALLING
SERIALBUS
SPAC 534 C
IUPQE
3I
3U
Uo
3U>
3U<
Figure 2. Basic functions of the feeder terminal SPAC 534 C or SPAC 634 C.
5
The standard subrack is made of anodized alu-minium section and includes ten operationmodules. In addition, three alternative optionalmeasuring modules are available.
The functions of the standard modules are ex-plained in the table below.
Description offunction
Design
The feeder terminal SPAC 534 C is housed in a19 inch subrack of Europe size, height 3U (~133mm) and the feeder terminal SPAC 634 C ishoused in a half of a full width 19 inch subrack,height 6U (~266 mm). The rear of the subrackis provided with an extension part of galvanizedsteel sheet.
Module Function
Overcurrent relay module Two-stage, 3-phase overcurrent protection.SPCJ 3C3 Measures, records, and displays the three phase currents
locally and transmits the data to the remote control system.
Neutral voltage relay module Two-stage earth fault protection.SPCU 1C6 Measures, records, and displays the neutral voltage locally and
transmits the data to the remote control system.
Over and undervoltage relay 3-phase over and undervoltage protection.module SPCU 3C14 Measures, records, and displays the three phase-to-phase
voltages locally and transmits the data to the remote controlsystem.
Control module SPTO 6D3 Reads and indicates the status data of seven disconnectors orcircuit breakers locally and transmits the data to the remotecontrol system. Reads seven external binary signals, indicatessix of them locally, and transmits the data to the remotecontrol system.Measures and displays locally three phase currents, threephase-to-phase voltages, and active and reactive power andenergy, and transmits the data to the remote control system.Executes local or remote open and close commands for amaximum of six circuit breakers or disconnectors.Performs up to five successive high-speed or delayed auto-reclosures.
I/O module SPTR 4D1 or Includes 7 optically isolated binary inputs, two OPEN outputSPTR 4D2 (3 pcs.) contacts and two CLOSE output contacts which are control-
led by the control module.
I/O module SPTR 6B11 Includes 3 optically isolated binary inputs and 5 outputcontacts which are controlled by the relay modules. Includesan IRF output contact which is common to the protectionrelay modules and the control module.
Power supply module Forms the voltages required by the modules of the feederSPGU 240A1 or SPGU 48B2 terminal by using the supply voltage.
Measuring input module Includes the adapter transducers of the three phase currents,SPTE 8C3 (SPAC 534 C) neutral current, and the neutral voltage, and their respectiveSPTE 8C4 (SPAC 634 C) electronic tuning components.
6
In order to be able to measure analog signals, thecontrol module requires an optional module.
The functions of the three available optionalmodules are as follows:
Module Function
Measuring module SPTM 8A1 Rectifies three phase current and three phase-to-phase voltages.(optional module 1) Forms voltage signals of external mA-input signals.
Measuring module SPTM 6A2 Rectifies three phase currents and three phase-to-phase voltages.(optional module 2) Forms using internal current and voltage signals the signals
corresponding to active and reactive power. (Aron connec-tion).
Measuring module SPTM 6A3 Rectifies three phase currents and three phase-to-phase voltages.(optional module 3) Forms using one internal voltage signal and two current signals
the signals corresponding to active and reactive power.
The overcurrent module SPCJ 3C3, the neutralvoltage relay module SPCU 1C6, and the overand undervoltage relay module are Euro-sized(100 x 160 mm) detachable modules.
The control module type SPTO 6D3 is alsodesigned to be a plug-in unit. This moduleincludes two PC boards: a CPU board and afront PC board which are mechanically con-nected to each other. The three I/O modulesSPTR 4D_ and the optional measuring mod-ules are located behind the module's front PCboard. The I/O modules and the optional meas-uring modules can be withdrawn after the con-trol module has been removed.
All the input and output signals of the I/Omodule U7 (SPTR 4D_) are linked via themulti-pole connector X3. Correspondingly, thesignals of I/O module U8 are linked via multi-pole connector X4 and the signals of I/O mod-ule U9 are linked via multi-pole connector X5.
The power supply module SPGU 240A1 andSPGU 48B2 and the I/O module SPTR 6B11are located behind the system front panel. Themodules can be withdrawn after the systempanel has been removed.
The protective relay modules SPCJ 3C3, SPCU1C6, and SPCU 3C14 are fastened to the casewith two finger screws and the control moduleSPTO 6D3 is fastened with four finger screws.These modules can be pulled out of the subrackafter the finger screws have been loosened.
Note!Before a module can be withdrawn from orinserted into the subrack the auxiliary supply ofthe feeder terminal should be switched off.
The measuring input module SPTE 8C3 (SPAC534 C) or SPTE 8C4 (SPAC 634 C) is locatedbehind the system panel in the left part of thecase. This module includes the calibration resis-tors of the secondary burden as well as thematching transformers. A screw terminal blockis fitted on the rear plate of the measuring inputmodule.
The PC mother board holds the card connectorsfor the plug-in modules and the detachablemulti-pole connectors X1...X6 for input andoutput signals.
7
Figure 3. Block diagram of feeder terminals SPAC 534 C and SPAC 634 C.
U1 Overcurrent relay module SPCJ 3C3U2 Neutral voltage relay module SPCU 1C6U3 Over and undervoltage relay module SPCU 3C14U4 Control module SPTO 6D3U5 Optional measuring module SPTM 8A1, SPTM 6A2 or SPTM 6A3U6 I/O module SPTR 6B11 for the protectionU7…U9 I/O modules SPTR 4D1 or SPTR 4D2 for the control module (3 pcs)U10 Power supply module SPGU 240 A1 or SPGU 48 B2U11 Measuring input module SPTE 8C3 (SPAC 534 C) or SPTE 8C4 (SPAC 634 C)X0 Screw terminalsX1…X6 Multi-pole connectorsSERIAL PORT Serial communication port
X3X1X0
3I>3I>>
X2
O <-> I I U P Q E
U >U >>
X6
U x I
X4 X5
U1 U2 U3 U7 U8 U9 U4 U5U6U10U11
3U>3U<
SERIAL PORT
8
The module measures the phase currents of thefeeder to be protected. When a phase currentexceeds the value set for the low-set overcurrentstage I>, the overcurrent stage starts, simultane-ously its timing circuit is started. When the setoperation time has elapsed, a tripping commandis delivered. Correspondingly, the high-set stagestarts when its start value I>> is exceeded. Itstarts its timing circuit and delivers a trip signalwhen the set operation time has elapsed.
Protection functions
Phase overcurrentprotection
The 3-phase overcurrent module SPCJ 3C3includes two overcurrent stages: a low-set stage(overcurrent) and a high-set stage (short cir-cuit). The low-set stage can be given a definitetime or inverse definite minimum time (IDMT)characteristic, whereas the high-set stage canoperate with a definite time characteristic only.
When the set operation time has elapsed, theneutral voltage module delivers a tripping com-mand. The high-set stage of the neutral voltagerelay module functions in a similar fashion.
Correspondingly, if any of the phase-to-phasevoltages measured by the module falls below thevalue set for U< of the undervoltage stage, theoperation time circuit starts. When the set op-eration time has elapsed, the undervoltage stagedelivers a tripping command.
The over and undervoltage module SPCU 3C14can be programmed as a single phase module.
Earth-fault protection The neutral voltage relay module SPCU 1C6includes two stages. When the neutral voltage ofthe subrack exceeds the value set for the low-setstage U0>, the neutral voltage module starts andthe timing circuit of the low-set stage is started.
Over and under-voltage protection
If any of the phase-to-phase voltages measuredby the over and undervoltage relay moduleSPCU 3C14 exceeds the value set for U> of theovervoltage stage, the overvoltage stage startsand delivers a tripping command after the setoperation time elapses.
relay modules (output relays A, B, C, D, E) andan IRF output contact (output relay F) which iscommon to the protection relay modules andthe control module and indicates an internalfeeder terminal fault.
I/O moduleSPTR 6B11 forprotection functions
The I/O module SPTR 6B11 of feeder terminalis located behind the system panel. The modulecan be withdrawn after removal of the systempanel. The I/O module includes three opticallyseparated binary inputs (BS1, BS2, BACTRL),five output contacts controlled by the protection
9
SS1/U1 Overcurrent module I>; stage startingSS2/U1 Overcurrent module I>>;stage startingTS1/U1 Overcurrent module I>; stage trippingTS2/U1 Overcurrent module I>>-stage trippingSS1/U2 Neutral voltage module U0>; stage startingTS1/U2 Neutral voltage module U0>: stage trippingTS2/U2 Neutral voltage module U0>>; stage trippingSS1/U3 Over and undervoltage module U>; stage startingSS2/U3 Over and undervoltage module U<; stage startingTS1/U3 Over and undervoltage module U>; stage trippingTS2/U3 Over and undervoltage module U<; stage trippingARDUE "Auto-reclosure due" signal from control moduleIRF Self-supervisionENA Enable signal for output signalsA (TRIP) Tripping output 1 for protection relay modules (I>, I>>, U0>, U0>>, U>)B (SIGNAL 1) Alarm output for overcurrent module final tripping, tripping output for undervoltage
object (U<), or tripping output 2 for protection relay modules (I>, I>>, U0>, U0>>, U>)C (SIGNAL 2) Alarm output for final tripping of the neutral voltage module or general alarm output
(I>, I>>, U0>, U0>>, U>)D (SIGNAL 3) Output relay for starting stages I>, I>>, and U<E (SIGNAL 4) Output relay for starting stages U0> and U>F (IRF) Alarm output for self-supervisionBACTRL Not used in SPAC 534/634 CBS1 Interlock signal 1 for tripping operationsBS2 Interlock signal 2 for tripping operations
I/O module SPTR 6B11 has a fixed 40 ms delayfor the control of output relays B and C. Thisdelay is added to the normal operational delay.When output B is used as a second trip output,the fixed 40 ms delay is by-passed by means ofswitch SGR/7. The input and output signals ofthe I/O module are permanently wired to the
card slots of the feeder terminal. Since the outputsignals are individually wired from each card slotto the I/O module, the modules have to beplugged into the relay case as shown in the figureon the front page to make sure that the connec-tion diagram of the relay assembly corresponds tothe physical function of the feeder terminal.
Figure 4. Block diagram of the I/O module SPTR 6B11.
F E D C B A
SGR/1
SGR/5
SGR/4
SGR/8
SGR/7SGR/3
SGR/6
40ms
40ms
11
1 1
1
1
1SGR/2
1
BS1
BACTRL
BS2
IRF
SS1/U1SS2/U1SS2/U3
SS1/U2SS1/U3
ARDUETS1/U2TS2/U2
TS2/U3
TS1/U1TS2/U1
X1/
12
X1/
11
X2/
12
X2/
11
X2/
10
X1/
8
X1/
9X
1/10
X2/
7
X2/
8X
2/9
X2/
4
X2/
5X
2/6
X2/
1
X2/
2X
2/3
X1/
6X
1/7
X1/
3X
1/4
TR
IP
SIG
NA
L1
SIG
NA
L2
SIG
NA
L3
SIG
NA
L4
IRF
TS1/U3
ENA
BS
1
BS
2
BA
CT
RL
+ +-+-
SPTR 6B11
10
When the starting signals of the relay modulesare used to start auto-reclosing, the starts of theauto-reclosures can be delayed to avoid unnec-essary auto-reclose functions. The dead timecan be determined separately for each shot. Thereclaim time is also adjustable.
For feeders with double subrack and doublebreaker arrangements (duplex), the auto-recloseprogram includes a so-called duplex logic, whichalways opens both circuit breakers, but gives theclosing command only to the circuit breakerwhich was last closed.
Auto-reclosingfunctions
The control module SPTO 6D3 also incorpo-rates auto-reclose functions capable of five suc-cessive auto-reclose shots. Each auto-reclose shotcan be started by three different signals (AR1,AR2, or AR3) from the protection relay mod-ules of the feeder terminal.
The three signals either start or trip signals forthe protection relay modules. For the configura-tion of the signals see the "Signal communica-tion between modules" chapter.
six objects, e.g. circuit breakers or disconnectors,either locally or through open or close com-mands received over the SPA bus.
In addition to status information, the controlmodule can read other binary data, indicate itlocally, and transfer the information to a stationlevel system. A maximum of seven external binarysignals can be wired to the feeder terminals.
Control functions
General
The control module SPTO 6D3 is used to readthe status information of circuit-breakers anddisconnectors. The module indicates the statuslocally by means of LED indicators and transfersthe information to a station level system via theSPA bus. The status of up to seven objects can beindicated.
The control module is also used to control up to
The control module uses input channels 1...7 toread status information from the circuit break-ers and disconnectors. Each of these channelsconsists of two binary inputs, one for readingthe open status of an object and the other forreading the closed status of an object. Thismeans that the status information must be wiredto the feeder terminal as four-pole information.
The front panel of SPTO 6D3 has a 4x4 matrix
display of LEDs that indicate status. Up to sevenof these LEDs at a time can be used for indicat-ing status. The circuit breaker/disconnector con-figuration indicated by these LEDs can be freelyselected by the user.
Up to six of the objects that have their status readby input channels 1...7 can be controlled. Theoutputs OPEN1...6 and CLOSE1...6 operate asthe control outputs of the feeder terminal.
Input channels 1...7
Input channels 8...14and 15..17
The control module can also be used to readseven external and three internal binary signals.The external signals, channels 8...14, can besingle contact data wired from the bay and theinternal signals, channels 15...17, are the start-ing and tripping signals of the protection relaymodules. See the "Signal communication be-tween modules" section.
The input signal type for channels 8...17 can beselected to be active at high state, i.e. when acontrol voltage is applied to the input, or at lowstate, i.e. when no control signal is applied to theinput.
The statuses of the external input channels8…13 are indicated by using the LEDs on thefront panel of the control module . The red LEDis on when the input channel has been activated.
The active status of the separate input channels8...13 can be programmed to remain in storage.In this case the LED of the input channel inquestion does not turn off until the channel isreset by pressing the STEP and SELECT push-buttons simultaneously or by giving parameterS5 the value of 0 or 1 via the remote controlsystem.
Input channels 8...17 can be used to control theOPEN16, CLOSE16, and SIGNAL 5 or 6outputs. When an input channel is activated,the OPEN or CLOSE output configured for thechannel delivers a control pulse. The SIGNALoutputs are active as long as the input channelsare active.
11
Interlocking The control module includes a feeder-specificinterlocking logic which can be freely pro-grammed by the user. When writing an inter-locking program, the user defines when an openor close signal can be given to a specific object.When an open or close command is given, theinterlocking system checks whether the opera-
tion is permitted or not. The command is sub-sequently executed or cancelled. The interlock-ing can be set to be dependent on the status ofthe four-pole input channels 1...7 or the inputchannels 8...17. The tripping signals of the relaymodules are not affected by the interlockingsystem.
CLOSE16, and SIGNAL5 or 6, can be control-led without an open or close command. Theoutputs are controlled by programmed logicand the status of input channels 1...7 and 8...17.
Conditional auto-matic control onan output
Normally, outputs OPEN16 and CLOSE 16are controlled by open or close commands,either given locally with push-buttons or overthe serial bus. When Direct Output Control hasbeen selected, all outputs, i.e. OPEN16,
Measurementfunctions
The control module SPTO 6D3, overcurrentmodule SPCJ 3C3, the neutral voltage moduleSPCU 1C6, and the over and undervoltage mod-ule SPCU 3C14 measure analog input signals.
The overcurrent module SPCJ 3C3 measures thethree phase currents. The measured currents areshown locally on the display of the relay module,and transmitted to higher system levels over theSPA bus when needed.
The neutral current module SPCU 1C6 meas-ures the neutral current of the subrack. Themeasured value is shown locally on the display ofthe module, and transmitted to higher systemlevels over the SPA bus when needed.
The over and undervoltage module SPCU 3C14measures the three phase-to-phase voltages. Thevoltage values are shown locally on the display ofthe module, and transmitted to higher systemlevels over the SPA bus when needed.
The protection relay modules also record theanalog signals in a fault situation. The relaymodules always indicate the measured values asmultiples of the rated current and the ratedvoltage of the feeder terminal.
In its standard configuration, the control moduleis provided with a pulse counter input for count-ing energy pulses. In order to be able to measureanalog signals, the control module SPTO 6D3requires an optional measuring module: typeSPTM 8A1, SPTM 6A2, or SPTM 6A3.
When the measuring module SPTM 8A1 is used,the control module is able to measure three phasecurrents and three phase-to-phase voltages. Ac-tive and reactive powers are measured by the mAinputs and external measuring transducers.
When using the measuring module SPTM 6A2,the control module can measure three phasecurrents and three phase-to-phase voltages. Ac-tive and reactive powers are measured by using anAron connection and the internal current andvoltage signals of the module.
When the measuring module SPTM 6A3 is used,the control module can measure three phasecurrents and three phase-to-phase voltages. Ac-tive and reactive powers are measured on the basisof the internal voltage of the module and twocurrent signals. The voltage to be used and thecorresponding currents are selected with switches.
The ratio of the primary current and voltagetransformers can be selected with the controlmodule. Based on these values, the control mod-ule is able to indicate the currents, voltages, andpowers as primary values. If the mA inputs areused for power measurement, the mA signals canbe scaled as actual MW and Mvar values. Theseprimary values can be indicated locally, and betransmitted to a higher system level over the SPAbus when needed.
Active energy can be measured in two ways; bycalculating the value on the basis of the powermeasured via one of the optional measuringmodules, SPTM 8A1, SPTM 6A2, or SPTM6A3, or by using input channel 11 as a pulsecounter input. In the latter case, an externalenergy meter with a pulse output is needed. Inboth cases, the amount of measured energy can bedisplayed locally and transmitted to a highersystem level over the SPA bus.
12
Serialcommunication
When the feeder terminal is door-mounted, thedoor structure should be reinforced.
Mounting anddimensiondrawings
The feeder terminal SPAC 534 C is designed forflush mounting in a 19" instrument frame. Theunit is fastened with four screws. The mountingdepth can be reduced by using a 40 mm raisingframe type SPA-ZX 19.
Figure 5. Mounting and dimensional drawings of the feeder terminal SPAC 534 C.
266
4 x ø8
448 ±1465 ±0,5
19" (482,6)
465
7,5
132,
5
57,1
133±
1
57,1
±0,
5
Panel cut-out
configuration, feeder-specific interlocking, andother parameters of the control module.
The 9-pin RS 485 connection on the rear panelis used to connect the feeder terminal to the SPAbus with an interface module type SPA-ZC17_or SPA-ZC21_.
The feeder terminal includes two serial commu-nication ports, one on the front panel and theother on the rear panel.
The 9-pin RS 232 connection on the front panelis intended to allow a PC to be connected. ThisPC is to be used for setting the CB/disconnector
module is protected with a fuse, F1, located onthe PCB of the module. The fuse size is 1 A (slow).
A green LED indicator, Uaux, on the front panelis lit when the power supply module is in opera-tion. There are two versions of the power supplymodules available. The secondary sides of themodules are identical, but the input voltage rangeis different. The input voltage range is marked onthe front panel of the feeder terminal.
Auxiliary powersupply
To guarantee reliable operation, the feeder ter-minal requires a secured auxiliary voltage sup-ply. The feeder terminal's internal power supplymodule SPGU _ forms the voltages required bythe measuring relay modules, the control mod-ule, and the input/output modules.
The power supply module is a transformer con-nected, i.e. galvanically isolated from the primaryand secondary side, flyback-type DC/DC con-verter. The primary side of the power supply
13
Figure 6. Mounting and dimensional drawings of the feeder terminal SPAC 634 C.
225 3269,2251,5
19242 x 5,08 = 213,36
223,8
6U (
265,
9)
190,
5
Panel cut-out238 x 267
10,4
7,5
The feeder terminals SPAC 634 C can be usedin switchgear cubicles with a limited width. Itsmounting depth is also smaller than that ofSPAC 534 C. The feeder terminal is fixed to the
frame by means of four screws. When the feederterminal is door-mounted, the door structureshould be reinforced.
14
Connectiondiagram
Figure 7. Connection diagram for the feeder terminal SPAC 534 C. Module U5 is optional
L1 L3
A
N
da
dn
X4/13
U >
U >>
3U>
3U<
110V
X0/21
X0/2
3I>
3I>>
U1
U2
U3
INPUT12
INPUT11
INPUT8
INPUT9
TRIP
SIGNAL 2
SIGNAL 3
CLOSE 1
110V
IL1
IL2
Io
Uo
IRF
SPAC 534 C
U4
SIGNAL 1
SIGNAL 4
OPEN 2
CLOSE 2
OPEN 3
CLOSE 3
OPEN 4
CLOSE 4
OPEN 5
CLOSE 5
OPEN 6
CLOSE 6
U12
U23
U31
INPUT10
SIGNAL 5
INPUT13
SIGNAL 6
X0/1
X0/4X0/5X0/6X0/7X0/8X0/9X0/25X0/26X0/27X0/28X0/29X0/30X0/13X0/14X0/15X0/16X0/17X0/18X0/19X0/20
OPEN 1
X1/4X1/3
X1/7X1/6
X2/1X2/3X2/2
X2/4X2/6X2/5
X2/7X2/9X2/8
X1/8X1/10X1/9
X3/11X3/12
X3/13X3/14
X3/15X3/16
X3/17X3/18
X4/11X4/12
X4/14
X4/15X4/16
X4/17X4/18
X5/11X5/12
X5/13X5/14
X5/15X5/16
X5/17X5/18
X6/1X6/2
X6/3X6/4
X3/7
X3/8X3/6
X4/7
X4/8X4/6
X3/9X3/10
X4/10X4/9
INPUT3/I
INPUT3/O
INPUT2/I
INPUT2/OINPUT1/I
INPUT1/O
INPUT6/I
INPUT6/OINPUT5/I
INPUT5/O
INPUT4/I
INPUT4/O
INPUT7/I
INPUT7/O
BS1
BACTRL
BS2
X1/12X1/11
X2/12
X2/11
X2/10
X3/2
X3/3
X3/4
X3/5X3/1
X4/2
X4/3
X4/4
X4/5X4/1
X5/2
X5/3
X5/4
X5/5
X5/7
X5/8X5/6
X6/7X6/8X6/9X6/10
X5/10X5/9
INPUT14
(ARINH)
(E)
P
Q
SERIAL BUS
A
B
C
D
E
F
U11
OI
OIOI
OI
O <-> I
OI
O -> I
U5
U6,U7,U8,U9
1A5A
1A5A
X0/3
1A5A
1A5A
110V100V
110V
+
+
100V
100V
100V
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
X5/1
IL3
Rx
Tx
SPA-ZC
(
X1/
1
X1/
2
(
(
U10+ -
-
(+
SERIAL BUS
RS 232RS 232
RS 485
15
Numbering of inputand output terminals Terminal Contact Function
group interval
X0 1-2 Phase current IL1 (5 A). Overcurrent protection and measurement1-3 Phase current IL1 (1 A). Overcurrent protection and measurement4-5 Phase current IL2 (5 A). Overcurrent protection and measurement4-6 Phase current IL2 (1 A). Overcurrent protection and measurement7-8 Phase current IL3 (5 A). Overcurrent protection and measurement7-9 Phase current IL3 (1 A). Overcurrent protection and measurement
13-14 P-P voltage U12 (100 V). Over and undervoltage protection, measurement13-15 P-P voltage U12 (110 V). Over and undervoltage protection, measurement16-17 P-P voltage U23 (100 V). Over and undervoltage protection, measurement16-18 P-P voltage U23 (110 V). Over and undervoltage protection, measurement19-20 P-P voltage U31 (100 V). Over and undervoltage protection, measurement19-21 P-P voltage U31 (110 V). Over and undervoltage protection, measurement25-26 Not in use in SPAC 534 C/634 C25-27 Not in use in SPAC 534 C/634 C28-29 Neutral voltage U0 (100 V). Earth-fault protection28-30 Neutral voltage U0 (110 V). Earth-fault protection
X1 1-2 Auxiliary power supply. The positive pole of the dc supply is connectedto terminal 1
3-4 Operation signal (TRIP) of protection relay modules (I>, I>>, U0>,U0>>, U>)
6-7 "Final trip on overcurrent; I>, I>>” alarm, tripping output for under-voltage, or tripping output 2 (SIGNAL1)
8-9-10 Self-supervision signaling contact (IRF). Operates on the closed circuitprinciple. Under normal conditions contact interval 8-9 is closed. Whenthe auxiliary power supply fails or an internal fault is detected, the contactinterval 9-10 is closed.
11-12 Not in use in SPAC 534 C/634 C
X2 1-2-3 "Final trip on earth-fault; U0>, U0>>" alarm or "General protection trip:I>, I>>, U0>, U0>>, U>" alarm (SIGNAL2)
4-5-6 Start signals for the overcurrent or undervoltage modules I>, I>>, U<(SIGNAL3)
7-8-9 Start signals for the neutral current or overvoltage modules U0>, U>(SIGNAL4)
10-11 External blocking signal 2 for protection (BS2)11-12 External blocking signal 1 for protection (BS1)
X3 1-2 Input channel 1 of control module, open status (INPUT1/O).When e.g. the circuit-breaker is open, voltage must be applied to the input
1-3 Input channel 1 of control module, closed status (INPUT1/I).When e.g. the circuit-breaker is open, voltage must be applied to the input
1-4 Input channel 2 of control module, open status (INPUT2/O)1-5 Input channel 2 of control module, closed status (INPUT2/I)6-7 Input channel 8 of control module (INPUT 8)6-8 Input channel 9 of control module (INPUT 9)9-10 Input channel 12 of control module (INPUT 12)
11-12 Open output 1 of control module (OPEN1)13-14 Close output 1 of control module (CLOSE1)15-16 Open output 2 of control module (OPEN2)17-18 Close output 2 of control module (CLOSE2)
16
Terminal Contact FunctionGroup interval
X4 1-2 Input channel 3 of control module, open status (INPUT3/O)1-3 Input channel 3 of control module, closed status (INPUT3/I)1-4 Input channel 4 of control module, open status (INPUT4/O)1-5 Input channel 4 of control module, closed status (INPUT4/I)6-7 Input channel 10 of control module (INPUT 10) or external auto-
reclose inhibit signal (ARINH)6-8 Input channel 11 of control module (INPUT 11) or energy pulse counter
9-10 Input channel 13 of control module (INPUT 13)11-12 Open output 3 of control module (OPEN 3)13-14 Close output 3 of control module (CLOSE 3)15-16 Open output 4 of control module (OPEN 4)17-18 Close output 4 of control module (CLOSE 4)
X5 1-2 Input channel 5 of control module, open status (INPUT5/O)1-3 Input channel 5 of control module, closed status (INPUT5/I)1-4 Input channel 6 of control module, open status (INPUT6/O)1-5 Input channel 6 of control module, closed status (INPUT6/I)6-7 Input channel 7 of control module, open status (INPUT7/O)6-8 Input channel 7 of control module, closed status (INPUT7/I)
9-10 Input channel 14 of control module (INPUT 14) or input for externalautoreclose starting signal, not indicated by LED
11-12 Open output 5 of control module (OPEN 5)13-14 Close output 5 of control module (CLOSE 5)15-16 Open output 6 of control module (OPEN 6)17-18 Close output 6 of control module (CLOSE 6)
X6 1-2 Signal output 5 of control module (SIGNAL 5)3-4 Signal output 6 of control module (SIGNAL 6)5-6 Not used7-8 mA input 1 (used only with optional measuring module SPTM 8A1)
9-10 mA input 2 (used only with optional measuring module SPTM 8A1)
17
Protective earth is connected to its own screw onthe rear panel. The screw is marked with anearth symbol. The channel numbers above are
equivalent to those used for setting the controlmodule SPTO 6D3. The following codes areused for the outputs:
Output Terminal numbers Output code for inter- Output code for conditionallocking and configuration automatic control of the
output
OPEN1 X3/11-12 20 220CLOSE1 X3/13-14 21 221OPEN2 X3/15-16 22 222CLOSE2 X3/17-18 23 223OPEN3 X4/11-12 24 224CLOSE3 X4/13-14 25 225OPEN4 X4/15-16 26 226CLOSE4 X4/17-18 27 227OPEN5 X5/11-12 28 228CLOSE5 X5/13-14 29 229OPEN6 X5/15-16 30 230CLOSE6 X5/17-18 31 231SIGNAL5 X6/1-2 40 40SIGNAL6 X6/3-4 41 41
Note!When an object is opened or closed, the outputsOPEN1 and CLOSE1, and OPEN2 andCLOSE2 always occur in pairs. For instance, if
OPEN1 is used for opening an object, then thesame object is closed by using the outputCLOSE1.
18
input and output signals of the feeder terminalcan be configured to obtain the requiredfunctions for the selected application.
Signal communi-cation betweenmodules
The initial factory settings of the feeder terminalmay have to be changed in different applications.Figure 8 below illustrates schematically how the
Figure 8. Signal communication between the modules of SPAC 534 C/634 C.
1
IL1,
IL2,
IL3
Uo
t>
SS
1S
S2
TS
1T
S2t>
>
SPCU 1C6 (U2)
BS
1
23
45
67
81
SG
B
45
67
8
I>I>
>
t>t>
>
TS
1T
S2
SG
B
SPCJ 3C3 (U1)
23
1
SS
1S
S2
BS
2
Uo>
>U
o>
U12
,U23
,U31
1
11
&
AR
2A
R3
AR
1
CH
AN
NE
LS 1
…7
CH
AN
NE
LS 8
…14
P (
mA
1)Q
(m
A2)
E CH
. 11
AR
INH
CH
. 10
SPTM ___ (U5)
I/U
UI
cos
ϕ
UI
sin
ϕ
SP
TM
8A
1S
PT
M 6
A_
~/-
11
CH
AN
NE
L 15
CH
AN
NE
L 16
OP
EN
1…6
CLO
SE
1…6
SPTO 6D3 (U4)
I U P Q E
O -
> I
AR
DU
ES
IGN
AL
5,6
1
SG
R/1
SIG
NA
L5,
6O
PE
N1…
6C
LOS
E1…
6
1S
GR
/2
SG
R/8
SG
R/3
AR
INH
40 m
s
A
TR
IP
D
SIG
NA
L3
E
SIG
NA
L4
C
SIG
NA
L2
40 m
s1 B S
IGN
AL1
SG
R/7
23
45
67
81
t>
SS
1S
S2
TS
1T
S2
U> k>
U< t<
SG
B
SPCU 3C14 (U3)
1C
HA
NN
EL
17
1
SG
R/5
SG
R/4
SG
R/6
SPTR 6B11 (U6)
SPTR 4D_ (U7...U9)
1
AR
STA
RT
CH
. 14
19
Part of the starting and tripping signals of therelay modules are permanently connected to theoutputs, whereas others are linked throughswitchgroup SGR situated at the front edge ofthe I/O module SPTR 6B11. The switches are
set through the opening of the system frontpanel.
The following functions can be selected with theSGR switches:
Switch Function Defaultvalue
SGR/1 Routes the start signal of stage I> to output SIGNAL3 1
SGR/2 Routes the trip signals of stages I> and I>> to output SIGNAL1 0
SGR/3 Routes the trip signal of stage U0> to output TRIP 1
SGR/4 Routes the start signal of stage U> to output SIGNAL4 0
SGR/5 Routes the start signal of stage U< to output SIGNAL3 0
SGR/6 Routes the trip signal of stage U> to output TRIP 1
SGR/7 Routes all signals linked to output TRIP to SIGNAL1 output 0
SGR/8 Routes all signals linked to output TRIP to SIGNAL2 output 1
Note!Switch SGR/3: When this switch is open andstage U0> trips, the trip signal opens outputSIGNAL2 and gives an internal auto-recloseinhibit signal. Thus the low-set earth-fault stagehas a signaling function only.
Switch SGR/8: When switch SGR/8 is closed,the SIGNAL2 output functions as an alarmoutput for tripping signals linked to the TRIPoutput.
The operation of outputs SIGNAL1 and 2 canbe delayed 40 ms when they are used to indicatethat the overcurrent module and the neutralvoltage module have operated. This delay elimi-nates unnecessary signaling if auto-reclosing isstarted by the tripping signals of the relay mod-ules. When an auto-reclose sequence has started,the internal signal ARDUE inhibits the outputsSIGNAL1 and SIGNAL2.
20
The SGB switchgroups in the circuit boards ofthe overcurrent, neutral voltage, and over andundervoltage modules are used for routing thestart signals of the protection relays to the auto-reclosure lines. SGB switches are also used forrouting external interlocking signals to protec-
tion relay modules.
The SGB switchgroup on the circuit board ofthe overcurrent module SPCJ 3C3 can be usedfor selecting the following functions:
Switch Function Defaultvalue
SGB/1 Routes the start signal of stage I> to auto-reclosure line AR2. 0The line AR2 is typically used as a start line for auto-reclosure requestsfrom the low-set stage of the overcurrent module.
SGB/2 Routes the start signal of stage I>> to auto-reclosure line AR2. 0
SGB/3 Routes the start signal of stage I>> to auto-reclosure line AR1. 0The line AR1 is typically used as a start line for auto-reclosure requestsfrom the high-set stage of the overcurrent module.
SGB/4 Forms an interlock signal for stage I> tripping from the BS1 0interlocking signal
SGB/5 Forms an interlock signal for stage I>> tripping from the BS1 0interlocking signal
SGB/6 Forms an interlock signal for stage I> tripping from the BS2 0interlocking signal
SGB/7 Forms an interlock signal for stage I>> tripping from the BS2 0interlocking signal
SGB/8 Not in use in SPAC 534/634 C. Position must be 0. 0
Note! Only one of the SGB/2 and SBG/3 switches can have position 1 at any given time.
21
The SGB switchgroup on the circuit board ofthe neutral voltage module SPCU 1C6 can beused for selecting the following functions:
Switch Function Defaultvalue
SGB/1 Routes the start signal of stage U0> to auto-reclosure line AR3. 0The line AR3 is typically used as a start line for auto-reclosure requestsfrom the low-set stage of the earth fault module.
SGB/2 Routes the start signal of stage U0>> to auto-reclosure line AR3. 0
SGB/3 Routes the start signal of stage U0>> to auto-reclosure line AR1 0
SGB/4 Forms an interlock signal for stage U0> tripping from the BS1 0interlocking signal
SGB/5 Forms an interlock signal for stage U0>> tripping from the BS1 0interlocking signal
SGB/6 Forms an interlock signal for stage U0> tripping from the BS2 0interlocking signal
SGB/7 Forms an interlock signal for stage U0>> tripping from the BS2 0interlocking signal
SGB/8 Not in use in SPAC 534/634 C. Position must be 0. 0
Note! Only one of the SGB/2 and SBG/3 switches can have position 1 at any given time.
The SGB switchgroup on the circuit board of theover and undervoltage module SPCU 3C14 canbe used for selecting the following functions:
Switch Function Defaultvalue
SGB/1 Routes the start signal of stage U> to auto-reclosure line AR2 0
SGB/2 Routes the start signal of stage U< to auto-reclosure line AR2 0
SGB/3 Routes the start signal of stage U< to auto-reclosure line AR1 0
SGB/4 Not in use in SPAC 534/634 C. Position must be 0. 0
SGB/5 Forms an interlock signal for stage U< tripping from the BS1 0interlocking signal
SGB/6 Not in use in SPAC 534/634 C. Position must be 0 0
SGB/7 Forms an interlock signal for stage U< tripping from the BS2interlocking signal 0
SGB/8 Not in use in SPAC 534/634 C. Position must be 0 0
Note! Only one of the SGB/2 and SBG/3 switches can have position 1 at any given time.
22
connectors X1 and X2. The auxiliary powersupply is connected to the multi-pole connectorX1. Other binary inputs, mA inputs, and con-trol module outputs are connected to the multi-pole connectors X3...X6. One max. 1.5 mm2
wire or two max. 0.75 mm2 wires can be con-nected to each screw terminal.
The serial interface RS 485 (Rx/Tx) on the rearpanel of the feeder terminal is intended forconnection to the SPA bus. The SPA bus isconnected by means of a connection moduletype SPA-ZC 17_ or SPA-ZC 21_. The busconnection module SPA-ZC 21_ is fitted to the9-pin D-type subminiature connector andscrewed to the rear panel. The connection mod-ule type SPA-ZC 17_ is connected to the feederterminal with the cable included with the deliv-ery of the module and fastened to the wall of theinstrument cabinet with screws.
The other 9-pin D type subminiature connectoron the rear plate (marked INTERLOCK) isreserved for future use.
12
11
10
9
8
7
6
5
4
3
2
1
X1
12
11
10
9
8
7
6
5
4
3
2
1
X2
10
9
8
7
6
5
4
3
2
1
X6
12
11
10
9
8
7
6
5
4
3
2
1
X5
15
14
13
18
17
16
12
11
10
9
8
7
6
5
4
3
2
1
X4
15
14
13
18
17
16
12
11
10
9
8
7
6
5
4
3
2
1
X3
15
14
13
18
17
16
Rx
Tx RS
485
27
26
25
9
8
7
6
5
4
3
2
1
30
29
28
21
20
19
18
17
16
15
14
13
X0
SPAC 634 C
Terminalsand wiring
All external conductors are connected to theterminal blocks on the rear panel. Terminalblock X0 consists of fixed screw terminals thatare fastened to the measuring input module.The connectors X1...X6 are detachable, multi-pole connector strips with screw terminals.
The male parts of the multi-pole connectorstrips are fastened to the PC mother board. Thefemale parts, with accessories, are delivered to-gether with the feeder terminal. The femaleconnector parts can be secured by using accesso-ries and screws.
The signal inputs that do the measuring areconnected to terminal block X0. Each terminalis configured for one max. 4 mm2 wire or twomax. 2.5 mm2 wires.
Protective earth is connected to the connectormarked with the earth symbol.
The binary inputs and outputs of the protectiverelay modules are connected to the multi-pole
Figure 9. Rear view of feeder terminal SPAC 534 C and SPAC 634 C
SPAC 534 C
27
26
25
9
8
7
6
5
4
3
2
1
30
29
28
21
20
19
18
17
16
15
14
13
12111098765432
1
X1
12111098765432
1
X2
1098765432
1
X6
12111098765432
1
X5
151413
181716
12111098765432
1
X4
151413
181716
12111098765432
1
X3
151413
181716
Rx Tx
23
The parameters can be set by using the frontpanel RS 232 connection or the rear panel RS485 connection by using the SPA protocol.Instructions are given in the manual of thecontrol module SPTO 6D3.
4. Settings of the overcurrent, neutral voltage,and over and undervoltage relay modules
During factory testing, all the SGB switches ofthe overcurrent, neutral voltage, and over andundervoltage protection modules have been setto their default positions. See the "Signal com-munication between modules" chapter. Whenusing auto-reclosures or interlocks external tothe protection relay modules, the SGB switchpositions of the modules SPCJ 3C3 (overcur-rent), SPCU 1C6 (neutral voltage), and SPCU3C14 (over and undervoltage) have to bechecked.
During factory testing, the setting knobs of theprotection relay modules are turned to the mid-dle position and all the SGB1 switches on thefront panel are turned to their 0 position.
The exact functions of the switchgroups on thefront panels of the protection relay modules aregiven in their respective user manuals.
Start-up Start-up should be carried out in accordancewith the following instructions. Checks 1 and 2have to be done before the auxiliary powersupply is connected.
1. Control voltage range of the binary inputs
Before connecting a voltage to input channels1...14, check the operative voltage range of theinputs. The voltage range, Uaux, is marked onthe front panel of the control module. Also seethe "Technical data" chapter.
2. Supply voltage
Before switching on the supply voltage, checkthe input voltage range of the power supplymodule. The voltage range, Uaux, is marked onthe front panel of the control module. Also seethe "Technical data" chapter.
3. Programming the control module
All nonvolatile EEPROM parameters have beengiven default values after factory testing. Thedefault parameters are explained in the manualof the control module SPTO 6D3.
If the default parameters are not satisfactory, thefollowing parameters can be set:- Configuration; user defined configuration- Interlocking; user defined interlocking- OPEN and CLOSE outputs; pulse lengths- Auto-reclose sequence, dead times, interlock
times, start-up delay- Measurements; ratio of primary current and
voltage transformers, settings for active andreactive power measurement, settings for en-ergy measurement
- Input channels 8...17; settings for polarity andoutput activation
- Event reporting; event masks, event reportingdelay times
24
Applications
Example 1.Control of thesubrack voltages ofthe supply station.
L1 L3
A
N
da
dn
O
O
Ι
+
+
+
+
+1)
3U>
3U<
110V
X0/21
X0/2
U1
U2
U3
INPUT12
INPUT11
INPUT8
INPUT9
TRIP
SIGNAL 2
SIGNAL 3
CLOSE 1
110V
IL1
IL2
Io
Uo
IRF
SPAC 534 C4
U4
SIGNAL 1
SIGNAL 4
OPEN 2
CLOSE 2
OPEN 3
CLOSE 3
OPEN 4
CLOSE 4
OPEN 5
CLOSE 5
OPEN 6
CLOSE 6
U12
U23
U31
INPUT10
SIGNAL 5
INPUT13
SIGNAL 6
X0/1
X0/4X0/5X0/6X0/7X0/8X0/9X0/25X0/26X0/27X0/28X0/29X0/30X0/13X0/14X0/15X0/16X0/17X0/18X0/19X0/20
OPEN 1
X1/4X1/3
X1/7X1/6
X2/1X2/3X2/2
X2/4X2/6X2/5
X2/7X2/9X2/8
X1/8X1/10X1/9
X3/11X3/12
X3/13X3/14
X3/15X3/16
X3/17X3/18
X4/11X4/12
X4/14
X4/15X4/16
X4/17X4/18
X5/11X5/12
X5/13X5/14
X5/15X5/16
X5/17X5/18
X6/1X6/2
X6/3X6/4
X3/7
X3/8X3/6
X4/7
X4/8X4/6
X3/9X3/10
X4/10X4/9
INPUT3/I
INPUT3/O
INPUT2/I
INPUT2/OINPUT1/I
INPUT1/O
INPUT6/I
INPUT6/OINPUT5/I
INPUT5/O
INPUT4/I
INPUT4/O
INPUT7/I
INPUT7/O
BS1
BACTRL
BS2
X1/12X1/11
X2/12
X2/11
X2/10
X3/2
X3/3
X3/4
X3/5X3/1
X4/2
X4/3
X4/4
X4/5X4/1
X5/2
X5/3
X5/4
X5/5
X5/7
X5/8X5/6
X6/7X6/8X6/9X6/10
X5/10X5/9
INPUT14
(ARINH)
(E)
P
Q
SERIAL
BUS
A
B
C
D
E
F
U11
OI
OIOI
OI
O <-> I
OI
U5
U6,U7,U8,U9
1A5A
1A5A
X0/3
1A5A
1A5A
110V100V
110V
+
+
100V
100V
100V
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
X5/1
IL3
Rx
Tx
SPA-ZC 17
(
X1/
1
X1/
2
(
(
U10+ -
-
(+
U >
U >>
X4/13
Figure 10. The feeder terminal SPAC 534 C4 as a controller of subrack voltages.
1) Start signal for U< stage(example 2)
25
Switch SG1/SPCU 1C6 SG1/SPCU 3C14 SG1/SPTO 6D3
1 1 0 3-phase 0 interlock in use2 03 0 switch not in use 1 U> inverse time4 0 no auto-hold 05 0 U0> =2...20% x Un 06 0 U0>> =10...80% x Un 1 U< locks if U < 20%7 1 0 U< starting delay 0.1 s8 0 1 t< = 10...120 s
Checksum = 65 Checksum = 166
The neutral voltage relay module SPCU 1C6measures the neutral voltage at the open trianglecoil of the voltage transformers of the subrack.In case an earth-fault occurs in some part of thegalvanically interconnected network, this causesa neutral voltage which is inversely proportionalto the resistance at the earth-fault location.
The low-set stage of the neutral voltage relaymodule SPCU 16 is used as an alarm. Thestarting value can be set relatively low.
The high-set stage of the neutral voltage relay isused as tripping protection. This stage functionsmainly as earth-fault protection for the subrackand as a secondary protection for the outputs incase the earth-fault protection of the output failsfor some reason. The starting voltage is sethigher than the settings of the earth-fault relaysof the outputs. If the high-set voltage set shouldalso be used as an earth-fault protection for theinput field, tripping can be routed to the breakerof the over voltage side in addition to the und-ervoltage side.
The over and undervoltage relay module SPCU3C14 measures phase-to-phase voltages, func-tioning as over and undervoltage protection.
The overvoltage stage first gives an alarm ofinitial overvoltage. Tripping occurs if the volt-age further increases.
The tolerance of equipment connected to thenetwork is inversely proportional to the magni-tude of overvoltage. Accordingly, the inversetime function can be used as the shape for thenominal curve of the overvoltage protection.During the inverse time function, the protec-tion gives an alarm at a voltage corresponding tothe set value. If the voltage exceeds the set valueby 6%, the relay will trip after a period of timedepending on overvoltage.
By choosing the nominal curve A, the alarmthreshold can be set relatively low while stillallowing enough operating time for the voltageregulator even in cases of great voltage fluctua-tions.
Undervoltage protection is an alarm function.Unnecessary function of the undervoltage pro-tection during auto-reclosure situations of thesupplying network is inhibited with the switchSG1/6. When the switch is in position 1, theundervoltage stage will not function in case thevoltage falls below 20% x Un.
Unnecessary function of stage U< during fuseautomaton trips is inhibited by linking an inter-lock voltage to the contact X2/11-12 of thefeeder terminal via the auxiliary contact of thefuse automaton. In this case, the position ofswitch 5 of the SGB switchgroup on the circuitboard of the over and undervoltage modulemust be 1 (ON).
t>> = 0.5...10.0 s
Note !The position of switch SG1/2 of the controlmodule SPTO 6D3 is irrelevant when the auto-
t> = 0.5...10.0 s
Curve A
reclosure feature is disabled. This is done bysetting the value of parameter S78 to 0.
26
Switch SGB/SPCU 1C6 SGB/SPCU 3C14 SGR
1 0 U0> start not to AR3 0 U> start not to AR2 0 Not in usein SPAC 534 C4
2 0 U0>> start not to AR3 0 U< start not to AR2 0 Not in usein SPAC 534 C4
3 0 U0>> start not to AR1 0 U< start not to AR1 0 U0> trip not to TRIPoutput
4 0 interl. BS1 not to t> 0 not in use 0 U> start not toSIGNAL4
5 0 interl. BS1 not to t>> 1 interl. BS1 to t< 1 U< start to SIGNAL36 0 interl. BS2 not to t> 0 not in use 1 U> trip to TRIP output7 0 interl. BS2 not to t>> 0 interl. BS2 not to t< 0 TRIP signal, not to
SIGNAL18 0 not in use 0 not in use 1 TRIP signal to
SIGNAL2
The switches on the circuit boards of variousunits and modules can be set as follows:
When switches SGR and SGB have the abovesettings, the output contacts of the feeder termi-nal SPAC 534 C4 have the following functions:
Contact Function
X1/3-4 (TRIP) Supply breaker open 1 (U0>>, U>)X1/6-7 (SIGNAL1) U< alarmX2/1-2-3 (SIGNAL2) U0> alarms, alarm for U0>> and U> tripsX2/4-5-6 (SIGNAL3) U< startX2/7-8-9 (SIGNAL4) U0> startX1/8-9-10 (IRF) Self-supervision alarmX3/11-12 (OPEN1) Supply breaker open 2 (local control, remote use)X3/13-14 (CLOSE1) Supply breaker closed
The auto-reclosure parameters can be set asfollows, because the auto-reclosure functionshave been disabled:
Parameter Value Function
S78 0 Inhibits auto-reclosuresV151 1 Stores the entered parameter
27
The neutral voltage module SPCU 1C6 meas-ures the neutral voltage at the open triangle coilof the voltage transformers. The low-set stage ofthe neutral voltage module can be used forauthorizing the neutral voltage modules of theoutputs. In case an earth-fault occurs at someoutput, the neutral voltage modules of the out-put and the subrack have to start before a trippulse can be routed to the breaker. This ensuresthat the neutral voltage module does not func-tion inadvertently during earth-faults, whenstarting the motor or during normal operatingconditions. If a directed earth-fault protectionrelay has been used at the output, authorizationis not required.
The high-set stage of the neutral voltage moduleSPCU 1C6 functions as earth-fault protectionand as auxiliary protection for the output pro-tections. The setting values are set higher thanthose of the output relays to establish selectiveprotection.
The overvoltage stage of the over and undervolt-age module SPCU 3C14 functions as overvoltage
protection for the motors, transformers, etc.connected to the subrack. The operation modeof the stage can be set as inverse time based.When using the nominal curve B for the inversetime, the starting threshold can be set relativelyhigh without causing excessively long trippingtimes at high overvoltages.
The undervoltage stage of the over and under-voltage module SPCU 3C14 opens the contactsof the motors connected to the subrack. Thisprevents simultaneous starting of the motorswhen the voltage is re-established. The functiondelay of the undervoltage stage is set longer thanthe quick auto-reclosure time of the base net-work to prevent short voltage interruptions fromtripping the motors.
Unnecessary tripping of the undervoltage pro-tection during fuse automaton trips is inhibitedby linking an interlock voltage to the relay viathe auxiliary contact of the fuse automaton. Inthis case, the position of switch 5 of the SGBswitchgroup must be in position 1 (ON).
Example 2.Controlling subrackvoltages of industrialelectrical stations.
Switch SG1/SPCU 1C6 SG1/SPCU 3C14 SG1/SPTO 6D3
1 1 0 3 phase 0 interlock operative2 0 1 U> start delay = 30 sec. 0 JKs in use3 0 switch not in use 1 U> inverse time4 0 no auto-hold 15 0 U0> = 2...20% x Un 06 0 U0>> = 10...80% x Un 0 U< no lock, if U < 20%7 1 1 U< start delay = 30 s8 0 0 t< = 1...12 sec.
Checksum = 65 Checksum = 78
Note !The position of switch SG1/2 of the controlmodule SPTO 6D3 is irrelevant when the auto-reclosure feature is disabled.
t> = 0,5...10,0 s
t>> = 0,5...10,0 s
Curve B
This is done by setting the value of parameterS78 to 0.
28
The switches on the circuit boards of variousunits and modules can be set as follows:
Switch SGB/SPCU 1C6 SGB/SPCU 3C14 SGR
1 0 U0> start not to AR3 0 U> start not to AR2 0 Not in use inSPAC 534 C4
2 0 U0>> start not to AR3 0 U< start not to AR2 0 Not in use inSPAC 534 C4
3 0 U0>> start not to AR1 0 U< start not to AR1 0 U0> trip not to outputTRIP
4 0 interl. BS1 not to t> 0 not in use 0 U> start not toSIGNAL4
5 0 interl. BS1 not to t>> 1 interl. to BS1 t< 1 U< start to SIGNAL36 0 interl. BS2 not to t> 0 not in use 1 U> trip to TRIP output7 0 interl. BS2 not to t>> 0 interl. BS2 not to t< 0 TRIP signal not to
SIGNAL18 0 not in use 0 not in use 1 TRIP signal to
SIGNAL2
When switches SGR and SGB have the abovesettings, the output contacts of the feeder termi-nal SPAC 534 C4 have the following functions:
The auto-reclosure parameters can be set asfollows, because the auto-reclosure functionshave been disabled:
Contact Function
X1/3-4 (TRIP) Supply breaker open 1 (U0>>, U>)X1/6-7 (SIGNAL1) U< trip (breaker for motors/motor output open)X2/1-2-3 (SIGNAL2) Alarm for final tripping (U0>>, U>)X2/4-5-6 (SIGNAL3) U< startingX2/7-8-9 (SIGNAL4) U0> starting (authorization for neutral current modules of the output)X1/8-9-10 (IRF) Self-supervision alarmX3/11-12 (OPEN1) Supply breaker 2 open (local control, remote use)X3/13-14 (CLOSE1) Supply breaker closed
Parameter Value Function
S78 0 Inhibits auto-reclosuresV151 1 Stores the entered parameter
29
The registers of the measuring units include a lotof useful information pertaining to the behaviorof the network during normal operation andfault situations.
Registers 1 and 2 of the over and undervoltagerelay module SPCU 3C14 can be used forfinding out the normal fluctuation range of thesubrack voltages. Registers 5 and 6 reveal thefrequency of wide voltage fluctuation, i.e. thestart frequency for the voltage relay module.
Registers 1 and 3 as well as 7 and 8 provide usefulinformation for correcting a fault situation.These registers reveal the voltage of the faultsituation and how close to tripping the over andundervoltage relay module was.
The registers of the neutral voltage moduleSPCU 1C6 provide an overview of the earth-fault situations of an electrical station. The
number of starts for different stages (registers 2and 3) provide an overview of the incidence ofearth-fault situations and their distribution inrelation to the fault resistance of the earth-faults.
Register 1 allows the smallest fault resistancethat causes an earth-fault to clear by itself or dueto auto-reclosures to be inferred. By using thelow-set neutral voltage set as an alarm and bysetting the function time delay to be identical tothe delay of the final trip of the earth-fault relayfor the output, register 1 can be used for defin-ing the fault resistance of the fault that causedthe tripping. The total earth-fault current of thegalvanically interconnected network must beknown.
Registers 4 and 5 reveal the duration of an earth-fault situation and, in connection with finaltripping, the safety margin of the stage times ofthe selective protection.
Correcting a faultsituation
30
Measuring inputsRated current 1 A 5 AThermal withstand capacity- continuous 4 A 20 A- for 1 second 100 A 500 ADynamic current withstand- half-wave value 250 A 1250 AInput impedance <100 mΩ <20 mΩRated voltage 100 V and 110 VContinuous voltage withstand capacity 2 x UnPower consumption at rated voltage <0,5 VARated frequency, on request 50 Hz or 60 Hz
mA-inputs (only with measuring module SPTM 8A1)Terminal numbers- active power X6/7-8- reactive power X6/9-10Input current range -20…20 mA
Binary inputs of control moduleTerminal numbers- channels 1...7, four-pole inputs X3/1-2, 1-3, 1-4, 1-5,
X4/1-2, 1-3, 1-4, 1-5,X5/1-2, 1-3, 1-4, 1-5, 6-7, 6-8
- channels 8...14, single contact inputs X3/6-7,6-8, 9-10X4/6-7,6-8, 9-10X5/9-10
Control voltage range- I/O module type SPTR 4D1 80…265 V-- I/O module type SPTR 4D2 30…80 V-Power consumption ~2 mA
Binary inputs of protection relay modulesInput terminals- interlock inputs X2/10-11, 11-12- control input for earth-fault protection basic angle X1/11-12Control voltage ranges 18…265 V- or
80…265 V~Power consumption ~2 mA
Energy pulse counter input (input channel 11)Terminal numbers X4/6-8Maximum frequency 25 HzControl voltage ranges- I/O module type SPTR 4D1 80…265 V-- I/O module type SPTR 4D2 30…80 V-Power consumption ~2 mA
Technical data
31
External auto-reclose inhibit input (input channel 10)Terminal numbers X4/6-7Control voltage range- I/O module type SPTR 4D1 80…265 V-- I/O module type SPTR 4D2 30…80 V-Power consumption ~2 mA
External auto-reclose start input (input channel 14)Terminal numbers X5/9-10Control voltage range- I/O module type SPTR 4D1 80…265 V dc- I/O module type SPTR 4D2 30…80 V dcCurrent drain ~2 mA
Contact outputsControl outputs X1/3-4, 6-7
X3/11-12, 13-14, 15-16, 17-18X4/11-12, 13-14, 15-16, 17-18X5/11-12, 13-14, 15-16, 17-18
- rated voltage 250 V~or-- continuous withstand capacity 5 A- connection, 0.5 s 30 A- connection, 3.0 s 15 A- breaking capacity for dc, when the control circuit time
constant L/R≤ 40 ms is at the control voltage levels:- 220 V- 1 A- 110 V- 3 A- 48 V- 5 A
- contact material AgCdO2- operating principle when controlled pulse control,
by the control module pulse length 0.1…100 s
Alarm outputs X1/8-9-10X2/1-2-3, 4-5-6, 7-8-9,X6/1-2, 3-4
- rated voltage 250 V~or -- continuous withstand capacity 5 A- connection, 0.5 s 10 A- connection, 3.0 s 8 A- breaking capacity for dc, when the control circuit time
constant L/R≤ 40 ms is at the control voltage levels- 220 V- 0.15 A- 110 V- 0,25 A- 48 V- 1 A
- contact material AgCdO2
Supply voltageSupply modules and supply voltage ranges- SPGU 240A1 80…265 V~ or-- SPGU 48B2 18…80 V-Power consumption of supplyunder quiescent/operating conditions ~15 W/~20 W
32
Overcurrent module SPCJ 3C3Low-set current stage I>- setting range for start current 0.5…2.5 x In- selectable modes of operation
- definite time operation - setting range of operating time t> 0.05…100 s - inverse time operation in accordance with IEC 255-4 and BS 142 Extremely inverse
Very inverseNormal inverseLong-time inverse
- setting range for time multiplier k 0.05…1.00
High-set current stage I>>- setting range for start current 0.5…20,0 x In and ∞- setting range of operating time 0.04…100 s
Neutral voltage relay module SPCU 1C6Low-set operating stage U0>- setting range for start voltage U0> 2.0...100 % x Un- setting range of operating time t> 0.05…100 s
High-set operating stage U0>>- setting range for start voltage U0>> 2.0...80.0 % x Un and ∞- setting range of operating time t> 0.05...100 s
Over and undervoltage relay module SPCU 3C14Over voltage stage U>- setting range for start voltage U> 0.8...1.6 x Un- selectable operating modes
- definite time operation - setting range of operating time t> 0.05...100 s- inverse time operation two steepness levels - time multiplier k> 0.05...1.00
Undervoltage stage U<- setting range for start voltage U< 0.4...1.2 x Un- setting range for operating time t< 1.00...120 s
33
Control module SPTO 6D3Control functions- status indication for up to 7 objects, e.g. circuit breakers, disconnectors, earth switches- circuit breaker/disconnector configuration freely selectable by the user- remote or local control (open and close) for 6 objects- setting range for output pulse length 0.1 - 100.0 seconds- freely programmable feeder-specific interlocking
Measurement functions- one pulse counter input for energy pulse counting as standard, maximum pulse frequency 25 Hz- other measurements require the use of an optional measuring module- local and remote indication of measured data as scaled values
Measurement functions with optional measuring module SPTM 8A1- measurement of three phase currents and three phase-to-phase voltages- measurement range for current 0…1.5 x In, j, for voltage 0…1.5 x Un- accuracy of current and voltage measurement ±1 % of rated value- mA inputs for measurement of active and reactive power via external measuring transducers- accuracy of power measurement ±1% of maximum value of measurement range- the energy value can be integrated on the basis of the measured power, alternative to energy
pulse counter
Measurement functions, with optional measuring module SPTM 6A2- measurement of three phase currents and three phase-to-phase voltages- measurement ranges, current 0…1.5 x In, voltage 0…1.5 x Un- accuracy of current and voltage measurement ±1 % of rated value- measurement of active and reactive power by using internal current and voltage signals,
the measurement is based on the Aron connection- power measurement range 0…1.1 x Pn and 0…1.1 x Qn- accuracy of positive power measurement ±2% of rated value- accuracy of negative power measurement ±3% of rated value- the energy value can be integrated by using the measured power,
alternative to energy pulse counter
Measurement functions, with optional measuring module SPTM 6A3- measurement of three phase currents and three phase-to-phase voltages- measurement ranges, current 0...1.5 x In, voltage 0...1.5 x Un- accuracy of current and voltage measurement ±1% of rated value- measurement of active and reactive power by using one internal voltage signal and
two current signals, the currents and voltage used are selected with switches- power measurement range 0...1.1 x Pn and 0...1,1 x- the energy value can be integrated by using the measured power,
alternative to energy pulse counter
Auto-reclosing- 5 auto-reclose shots- starting delays can be selected when the auto-reclosure
is started with AR2 and AR3 signals 0.0...05.00 s- dead time, selectable 0.2...300.0 s- reclaim time, selectable 0.2...300.0 s
34
Data communicationRear panel data communications port- connection port RS 485, 9 pin, female- bus interface modules- for plastic fiber cable SPA-ZC 17 BB
SPA-ZC 21 BB2- for glass fiber cable SPA-ZC 17 MM
SPA-ZC 21 MM
Front panel data communications port- connection port RS 232, 9 pin, female
Data encoding ASCIISelectable data transfer rates 4800 Bd or 9600 Bd
Test voltages *)Dielectric test voltage (IEC 255-5) 2 kV, 50 Hz, 1 minImpulse test voltage (IEC 255-5) 5 kV, 1.2/50 µs, 0.5 JInsulation resistance (IEC 255-5) >100 MΩ, 500 V dc
Disturbance tests *)High-frequency (1 MHz) disturbance test(IEC 255-22-1)- common mode 2.5 kV- differential mode 1.0 kVElectrostatic discharge test (IEC 255-22-2and IEC 801-2), class III- air discharge 8 kV- contact discharge 6 kVFast (5/50 ns) transients- IEC 255-22-4, class III- IEC 801-4, level IV:
power supply inputs 4 kVother inputs 2 kV
Environmental conditionsSpecified ambient service temperature -10…+55°CTransport and storage temperature range -40…+70°CLong term damp heat endurance test as per IEC 68-2-3 <95 %, 40°C and 56 daysDegree of protection provided by enclosurewhen panel mounted IP 20Mass of the unit ~8 kg
*) The tests do not apply to the serial port, which is used for the bus connection module only.
35
Maintenanceand repairs
When the feeder terminal is used under theconditions specified in the "Technical data"section, the feeder terminal is practically main-tenance-free. The feeder terminals include noparts or components subject to abnormal physi-cal or electrical wear under normal operatingconditions.
If the environmental conditions differ fromthose specified for the temperature and humid-ity, or if the atmosphere around the feederterminal contains chemically active gases ordust, the feeder terminal should be visuallyinspected in connection with routine testing orfollowing a specified inspection routine. Dur-ing the visual inspection the following thingsshould be noted:
- Signs of mechanical damage on the casing andterminals
- Dust inside the feeder terminal cover or case;remove by blowing carefully or by using a softbrush
- Signs of rust or oxidation in the terminals oron the casing
If the feeder terminal fails in operation or if theoperating values considerably differ from thosementioned in the specifications, the feeder ter-minal should be properly serviced. Minor re-pairs, such as replacing the modular circuitboards, can be done by the trained service tech-nicians of the client, but all major measuresinvolving overhaul of the electronics are to betaken by the manufacturer. Please contact themanufacturer if you are unsure or a fault per-sists. The manufacturer is happy to give furtherinformation on the checking, servicing, andcalibration of the equipment.
Note!Secondary devices of the electric station aremeasuring instruments and should be handledwith care and protected against moisture andmechanical stress, especially during transport.
Exchance andspare parts
Control module SPTO 6D3Optional measuring module 1 (I, U, mA) SPTM 8A1Optional measuring module 2 (I, U, P, Q) SPTM 6A2Optional measuring module 3 (I, U, P, Q) SPTM 6A3Overcurrent relay module SPCJ 3C3Neutral voltage relay module SPCU 1C6Over and undervoltage relay module SPCU 3C14I/O module for control signals, input voltage range 80…265 V- SPTR 4D1I/O module for control signals, input voltage range 30…80 V- SPTR 4D2I/O module for protection functions SPTR 6B11Power supply module, supply voltage range 80…265 V- or ~ SPGU 240A1Power supply module, supply voltage range 18…80 V- SPGU 48B2Rack without plug-in modules (SPAC 534 C) SPTK 8C3Rack without plug-in modules (SPAC 634 C) SPTK 8C4Counter contacts for multi-pole connectors X1...X6 including SPA-ZT6accessories (also included in relay delivery)
36
Deliveryalternatives
Stripped unit including overcurrent, over- and undervoltage and control module
Stripped unit including overcurrent, and control module
Stripped unit including overcurrent, residual voltage and control module
SPAC 534 C1
SPAC 534 C2
SPAC 534 C3
Illustration Modules Type
Complete unit including overcurrent, residual voltage, over- and undervoltage and control module
SPAC 534 C
Stripped unit including residual voltage, over- and undervoltage and control module
SPAC 534 C4
Stripped unit including residual voltage, and control module
SPAC 534 C5
Stripped unit including over- and undervoltage and control module SPAC 534 C6
Figure 11. Delivery alternatives of feeder terminal SPAC 534 C.
37
Figure 12. Delivery alternatives of feeder terminal SPAC 634 C.
SPAC 634 C
Illustration Modules Type
SPAC 634 C5
SPAC 634 C1
SPAC 634 C2
SPAC 634 C3
SPAC 634 C4
SPAC 634 C6
Complete feeder terminal including an overcurrent module, a residual voltage module, an over- and undervoltage module and a control module
Partially equipped feeder terminal including an overcurrent module, a residual voltage module and a control module
Partially equipped feeder terminal including an overcurrent module, an over- and undervoltage module and a control module
Partially equipped feeder terminal including an overcurrent module and a control module
Partially equipped feeder terminal including a residual voltage module, an over- and undervoltage module and a control module
Partially equipped feeder terminal including a residual voltage module and a control module
Partially equipped feeder terminal including an over- and undervoltage module and a control module
38
Order information Please state the following information when ordering feeder terminals:
Example:1. Quantity and type 5 pcs. SPAC 534 C2. Rated frequency fn = 50 Hz3. Supply voltage Uaux = 110 V-4. Type designation of configuration plate 5 pcs. SYKK 9735. Options 5 pcs. SPTM 8A1, measuring module6. Accessories 5 pcs. SPA-ZC 17 MM2A, bus interface module
The delivery includes 3 empty legend text films SYKU 997 for channels 8...13.
Different configuration plates are available for feeder terminals. The type of the configuration platemust be stated in the order.
IRF
911B SPTO 6D3
O I
R
L
SG1
12
0 1
I
STEP
U
I
[kA]
[A]
[kV]
O I
TEST
INTERLOCK
O
I [MW]
[Mvar]
[GWh, MWh, kWh]
P
Q
E
OPTION
I, U, P, Q, E
I, U
RS 232
1224
GAS PRESSURE
MOTOR VOLTAGE
SPTO 6D3Control module
User´s manual and Technical description
2
SPTO 6D3Control module
Description of functions ................................................................................................. 3Control functions ...................................................................................................... 3Measurement functions ............................................................................................. 3Auto-reclosing ........................................................................................................... 4Block schematic diagram (modified 96-12) ................................................................ 4
Front panel ..................................................................................................................... 5Object status indicators ............................................................................................. 5Indicators for input channels 8…13 .......................................................................... 6Operation indicators.................................................................................................. 6LOCAL/REMOTE key switch .................................................................................. 7Push-buttons ∩, I and O .......................................................................................... 7Switchgroup SG1 ...................................................................................................... 7Display of measured values and serial communication parameters ............................. 8RS 232 interface ...................................................................................................... 10
Setting .......................................................................................................................... 11Configuration .......................................................................................................... 11Interlocking ............................................................................................................. 14Direct Output Control ............................................................................................ 17Input channels 8…17 (modified 96-12) ................................................................... 18Outputs ................................................................................................................... 19Scaling of measured values ....................................................................................... 21Auto-reclosing (modified 96-12) .............................................................................. 25Event codes ............................................................................................................. 30Quick reference for setting ...................................................................................... 33Serial communication parameters (modified 96-12) ................................................. 34Default values of parameters (modified 96-12) ......................................................... 42
Technical data .............................................................................................................. 45
Contents
1MRS 750202-MUM EN
Issued 96-03-06Modified 96-12-30Version B (replaces 34 SPTO 5 EN1)Checked RHApproved TLK
Data subject to change without notice
3
Description offunctions
Control functions
The control module type SPTO 6D3 is used forreading binary input signals and for local andremote status indication of the binary signals.Thecontrol module also executes open and closecommands for controllable switching devices ofthe switchgear.
Input channels 1…7 are used for reading statusinformation of the switching devices, i.e. circuitbreakers and disconnectors here after calledobjects. Each of these channels include twophysical inputs, one for the "object open" andone for the "object closed" information. Thecontrol module indicates the status informationlocally on the front panel by means of LEDindicators and transfers the status informationto the substation level communication equip-ment using the SPA serial bus.
The control module reads the status informa-tion of max. 7 objects. The front panel of thecontrol module is provided with a LED matrixused for object status indication. The objectstatus indication LEDs of the control moduleare freely configurable by the user to match thecombinations of switching devices of theswitchgear cubicles.
Input channels 8…17 consist of single binaryinput circuits. These channels are basically usedfor transferring binary signals, other than circuitbreaker and disconnector status information
signals, over the SPA bus to the substation levelsystem. The status of input channels 8...13 isindicated locally by LEDs on the front panel ofthe control module.
The control module is capable of providingopen and close commands for six objects. Thecommands may be given via the local push-buttons on the front panel, the SPA serial bus orthe input channels 8…17. The length of thepulse-shaped OPEN or CLOSE signals can bedetermined by the user.
An enable signal must be given by the interlock-ing program before an OPEN or CLOSE pulsecan be delivered. The enable signal is controlledby the status of input channels 1…7 and 8…17and the interlocking program written by theuser.
Signal outputs, SIGNAL5 and 6 can be used forindicating the status of the input channels 8…17.
The OPEN, CLOSE or SIGNAL outputs canbe controlled by the Direct Output Controlprogram. This program resembles the interlock-ing program. The user can define under whichcircumstances an output is to be activated. Thiscontrol of an output is determined by the statusof inputs 1…7 and 8…17, the position of theLOCAL/REMOTE key switch and the DirectOutput Control Program written by the user.
As a standard feature the control module SPTO6D3 includes a pulse counter input by means ofwhich energy pulse are counted. For additionalmeasuring functions an optional measuringmodule is required. The optional module recti-fies and processes the analog signals and for-wards them to the control module, which incor-porates the actual measuring software. Threetypes of optional measuring modules are avail-able.
When the measuring module type SPTM 8A1 isused in combination with the control moduleSPTO 6D3 three phase currents, three phase-to-phase voltages and two mA signals can bemeasured. The mA inputs are used for measur-ing active and reactive power. External measur-ing transducers are needed.
When the measuring module type SPTM 6A2is used in combination with the control moduleSPTO 6D3 three phase currents, three phase-to-phase voltages and active and reactive powercan be measured. From the current and voltage
input signals the measuring module forms thesignals which are proportional to active powerand reactive power using the Aron connectionprinciple.
When the measuring module type SPTM 6A3is used in combination with the control moduleSPTO 6D3 three phase currents, three phase-to-phase voltages as well as active and reactivepower can be measured. From one voltage signaland two current signals the measuring moduleforms the signals which correspond to the three-phase active and three-phase reactive power.The voltage to be used and its related currentsignals can be selected by means of switches.
Input channel 11 can be used as a pulse counterinput for energy pulses. Energy can also becalculated by integrating the measured powervalues over time.
The measured signals can be scaled for displaylocally and for remote transfer over the SPA busas primary values.
Measurementfunctions
4
Auto-reclosing The control module SPTO 6D3 is capable ofperforming five auto-reclosings. Each auto-reclose cycle can be started by three differentstart initiation signals delivered by the protec-tion relay modules of the feeder terminal. Anauto-reclose system can deliver an open com-mand to the breaker. Thus either the startingsignal or the tripping signal of a particularprotection relay module can be used for startingauto-reclose sequences.
In double busbar systems with two circuit break-ers (duplex-systems) the auto-reclose functionincludes a so called duplex logic, which routesthe closing command selectively to the circuitbreaker last closed.
The dead times of the different auto-reclosecycles can be independently determined. Thereclaim time can also be determined by the user.
Block schematicdiagram(modified 96-12)
Fig. 1. Block schematic diagram for the control module SPTO 6D3 including an optionalmeasuring module SPTM 8A1.
E ( )Channel 11
SPTM8A1
AR1,AR2,AR3
t
Open1…6 /Close1…6
Chann.8…13
Signaloutputcontrol
Signal5 or 6
SPTO 6D3
Enable
SPA-bus
Readstatus
Channels8…17
Channels1…7
Open/closeoutputcontrol
Inter-locking
Readstatus
Ι O
SPA-bus
SPA-bus
Indication
Directoutputcontrol
&
Indication
1
1
Indication
Measure-ment
SPA-bus
Auto-reclose
Q (mA2)
3I3U
P (mA1)
&Channel 10ARINH
Readstatus
Remote/local-key switch
EXTARChann.14
5
Front panel
IRF
O<->I
Ι
O
STEP
SG112
TEST
0 1
P [MW]
Q [Mvar]
I [kA]
I [A]
U [kV]
E [GWh,MWh,kWh]
R
L
INTERLOCK
SPTO 6D3
RS 232
Operation indicators; auto-reclose due, output test and interlocked operation
Indicators for input channels 8…13The pocket for channel legend text film SYKU 997
Remote/Local key switchIndicators for remote and local mode
Simplified device symbol
Display for measured values
Self-supervisionalarm indicator
Display step button
Indicators for measured values
Switchgroup SG1
RS 232 interface
Type designationof the module
Status indication matrixThe pocket for configuration plate SYKK _
Select, closeand openbuttons
O -> I
OPTIONI, U
I, U, P, Q, E Type of optionalmeasuring module
Fig. 2. Front panel of the control module SPTO 6D3 without the configuration plate SYKK _ andthe channel legend text foil SYKU 997.
The front panel includes 16 indicator units witheach four rectangular LED indicators, two greenand two red. The indicator units are used forlocal status indication of the circuit breakers anddisconnectors of the switchgear cubicle. In thecontrol module SPTO 6D3 seven of the 16indicator units can be utilized at a time. Theindicator units to be used are freely selectable bythe user, see chapter "Configuration".
A plastic configuration plate type SYKK_ witha printed mimic diagram is inserted into apocket in front of the object indicator units. Thebottom of the pocket is open. By selecting aproper configuration plate and by configuring anew combination of indicator units differentobject configurations of the switchgear cubiclecan be handled.
The configuration plate shows the combinationof circuit breakers and disconnectors of theswitchgear cubicle. The configuration plate fea-tures transparent windows for the status indica-tors that are in use. The status indicators not inuse are hidden.
One indicator unit consists of four LEDs, twovertical and two horizontal. Two of the LEDsare red and two are green. The red LEDs arevertically and the green LEDs horizontally ar-ranged in columns 1 and 3, see Fig. 6. Incolumns 2 and 4 the green LEDs are verticallyand the red LEDs horizontally arranged. Due tothis system both colours can be used to indicateeither the open or closed status of a switchingdevice.
Object statusindicators
Fig. 3. Example of a plastic configuration plateSYKK __. The actual size of the configurationplate is 72mm x 106.5 mm.
913B
6
to be memory controlled. If an input channelindicator is memory controlled the LED indica-tor remains lit until the channel is locally resetby pressing the push-buttons STEP and SE-LECT simultaneously or by remote control viathe serial interface using the parameter S5, whichis given the value 0 or 1.
The front panel includes a pocket for the textlegend foil SYKU 997 on which the user canwrite the input channel texts. An clear text foilis delivered with the feeder terminal.
Fig. 4. Example of a text foil type SYKU 997. The foil is shown in its natural size, width 33.5 mmand height 34 mm.
CB CONDITION
GAS PRESSURE
MOTOR VOLTAGE
CB CONDITION
GAS PRESS.
MOTOR VOLT.
Drawn with1,8 mmlettering guide
Drawn with2,5 mmlettering guide
The control module features three red operationindicators which show the status of the module
itself. These LEDs are normally dark. The indi-cators have the following functions:
Indicator Function
O -> I Indicates that an auto-reclose sequence is in progress. The LED is lit when anauto-reclose cycle starts and switched off when the auto-reclose programmedelivers a close command.
TEST The LED is lit when switch SG1/1=1. IN this switch position the interlockingfunction are out of use.
INTERLOCK The LED is lit when a control command is given locally but the control of theobject is prohibited by the interlocking program. The led indicator can beswitched off by pushing the ∩ button but it is also automatically switched offafter about 30 s.When the control module is in the programming mode and the interlockingsare in use the indicator lights and it is switched off when the operation modeis entered or when the interlockings are set out of use.
Indicators for inputchannels 8…13
The status of the input channels 8…13 is indi-cated locally by LEDs on the front panel. Chan-nel 8 is indicated by the topmost LED andchannel 13 by the bottom LED.
An input can be defined to be active when theinput signal is high (controlled by NO contact)or active when the input signal is low (controlledby NC contact). The LED is lit when the inputis active.
The indication of the active status of the inputchannels 8...13 can be separately be programmed
Operation indicators
7
The local I and O push buttons, i.e. the OPENand CLOSE push buttons, are made operativeby turning the key switch into the positionLOCAL, indicated by the yellow LED markedL. In this switch position all remote controlsignals via the serial interface are inhibited.
Accordingly, to be able to control an object viathe serial interface, the key switch must be in theREMOTE position, indicated by the yellowLED marked R. When the key switch is in the
REMOTE position, local push-button controlis inhibited. Control signals via input channels8...17 or the direct output control programmeare allowed both in the LOCAL and the RE-MOTE position. The position information canalso be included in the Direct Output Controlfunction.
The key of the key switch can be removed ineither position.
LOCAL/REMOTEkey switch
A local control sequence is started by pressingthe ∩ push button. After that the indicator unitof the first object to be controllable starts flash-ing.
If the object is closed the indicator for the closedposition starts flashing and if the object is openthe indicator for the open position starts flash-ing. The indicator remains flashing until a con-trol command is given or a timeout of 1 min haselapsed.
If the first object is not to be controlled, the ∩push button is pressed again and the indicator of
the second object to be controlled starts flash-ing.
The close and open commands are given withthe I (close) and O (open) push-buttons. De-pending on the status of inputs 1…7 and 8…17and the interlocking function the control mod-ule either executes the selected command orswitches on the INTERLOCK LED to indicatethat the operation is inhibited.
The lenght of the control pulse can be set in therange 0.1…100 s.
Switch Function
SG1/1 Switch SG1/1 is used to inhibit the interlockings during testing
When SG1/1=0, the interlocking function is in use
When SG1/1=1, the interlocking function is out of use and the red TESTLED is lit. All control operations are allowed.NOTE! Switch SG1/1 should be used only for test purposes!
SG1/2 Switch SG1/2 is used to inhibit autoreclosing
When SG1/1=0, the auto-reclose function is in use. Also see parameter S78.
When SG1/1=1, the auto-reclose function is inhibited.
Push-buttons∩, I and O
Switchgroup SG1
8
Red digit Data to be displayed
A Serial communication address. Can have a value within the range 0…254.Default value 99.
B Serial communication baudrate. Selectable transmission rates 4.8 or 9.6 kBd.Default value 9.6 kBd.
C Serial communication monitor. If the module is connected to a higher levelcommunicatin equipment and the communication system is operating, the monitorreading is 0, otherwise the numbers 0…255 are continuously scrolling in thedisplay.
green digits. A lit yellow LED indicator belowthe STEP push-button shows which measuredvalue is indicated on the display.
Indicator Data to be displayed
I [kA] Measured phase currents IL1, IL2 and IL3 in kiloamperes. Themeasuring range is 0.00…999 kA. The phase is indicated by theleftmost red digit 1, 2 or 3 on the display.
I [A] Measured phase currents IL1, IL2 and IL3 in amperes. The measuringrange is 0.00…999 A. The phase is indicated by the leftmost red digit1, 2 or 3 on the display.
U [kV] Measured phase-to-phase voltages U12, U23, U31 in kilovolts. Themeasuring range is 0.00…999 kV. The measured voltage is indicatedby the leftmost red digit 1, 2 or 3 on the display.
P [MW] Measured active power in megawatts. Both positive and negativevalues are indicated. Positive values have no sign, negative values areindicated by a red minus sign.
Q [MVar] Measured reactive power in megavars. Both positive and negativevalues are indicated. Positive values have no sign, negative values areindicated by a red minus sign.
E [GWh, MWh, kWh] Measured active energy. The measured value is displayed in threeparts; in gigawatthours, in megawatthours and in kilowatthours
The serial communication parameters, too, arepresented on the four-digit display. The address
of the data to be displayed is indicated by theleftmost red digit of the display.
Display of measuredvalues and serialcommunicationparameters
The displayed items can be stepped through bypressing the STEP push-button. The measuredvalues are presented by the three rightmost
The display can be selected to show a measuredvalue continuously or to be switched off after a5 minutes timeout.
9
Fig. 5. Display menu of the control module SPTO 6D3.
Display off
2
3
Current in phase L1 / kA
Current in phase L2 / kA
Current in phase L3 / kA
Current in phase L1 / A
Current in phase L2 / A
Current in phase L3 / A
Voltage U12 / kV
Voltage U23 / kV
Voltage U31 / kV
1
1
1
3
2
3
2
1
Active power / MW
Reactive power / Mvar
Energy / GWh
Energy / MWh
3 Energy / kWh
Serial communication monitor
Data transfer rate / kBd
Serial communication addressA
b
C
2
Reverse step 0.5 s
Forward step 1 s
10
The following serial communication param-eters should be used:
- Number of data bits, 7- Number of stop bits, 1- Parity, even- Baudrate, 9.6 kilobauds as a default
The table below shows the signal names and pinnumbers of the cable to be used between the RS232 interface and the device used for setting.
RS 232 interface of SPTO 6D3 Setting device
Signal name Pin number Pin number Pin number Signal name9-pin male conn. 9-pin fem. conn. 25-pin male conn.
Data receive, Rx 2 3 2 Data transmit, TxData transmit, Tx 3 2 3 Data receive, RxEarth 5 5 7 EarthDSR 6 4 20 DTRDTR, +12 V 4 - - -
Pin 4 of the RS 232 interface of the controlmodule SPTO 6D3 can be used for feedingsupply voltage to an optic modem. An opticmodem may be necessary between the control
module and the programming device if thepossible potential difference cannot be elimi-nated.
RS 232 interface The 9-pole RS 232 interface on the front panelis used for setting the control module via a PC.The entire serial communication of the feederterminals goes over the control module. Thismeans that also the relay modules of the feederterminal are set via the RS 232 interface of thecontrol module.
If a PC is connected to the RS 232 interface theRS 485 interface on the rear panel of the feederterminal is disconnected. The use of the RS 232interface requires a SPA bus protocol.
11
The control module SPTO 6D3 is capable ofindicating status of seven objects (circuit break-ers or disconnectors) and controlling (openingor closing) six objects.
The control module suits different circuitbreaker/disconnector/earthing switch configu-rations within the above mentioned limits. Theconfiguration can be freely selected by using theconfiguration commands explained below. Af-ter factory testing all indicators are set out of useand the user must select his own configuration.
The seven input channels 1…7 are used forreading status data of circuit breakers anddisconnectors. The input channel numbers areused when the circuit breaker/disconnector con-figuration is set.
The code numbers of the indicatorm units onthe front panel range from 101...116 and theyare used when the feeder terminal is configured.The locatio and the code numbers of the indica-tor units in the matrix are shown in Fig. 6.
The control module has 12 control outputs,OPEN1…6 and CLOSE1…6 for the control ofsix objects. The control outputs have their owncode numbers, 20...31, which have to be usedwhen the control module is configured. Theoutput code numbers correspond to the follow-ing functions:
Output code Functionnumber
20 OPEN121 CLOSE122 OPEN223 CLOSE224 OPEN325 CLOSE326 OPEN427 CLOSE428 OPEN529 CLOSE530 OPEN631 CLOSE6
For the correspondence between the input andoutput codes and the terminal numbers on therear panel of the feeder terminal see chapter"Connection diagram" in the user´s manual forthe feeder terminal.
A configuration is set by linking the indicatornumber, the four-pole input number and the out-put code number by using an SPA protrol com-mand.
The setting parameters S101…S116 which cor-respond to the indicator code numbers101…116 are reserved for the configurationcommands. Either the OPEN code (e.g. 20) orthe CLOSE code (e.g. 21) can be used as anoutput code number. Also some other para-meters, such as object type and the location ofopen and closed status indicators, are specifiedin the SPA instruction.
Fig. 6. Position, code number and colour of theindicator units on the front panel of the controlmodule.
Setting
Configuration
= RED
= GREEN
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
COLUMN COLUMN COLUMN COLUMN
1 2 3 4
12
Instruction format:
>99 WS 109:1,1,2,20,1:XX
Type of object0 = not circuit breaker1 = circuit breaker
Output code0 = object is not controlled20…31 = code of the OPEN or CLOSE output
Input channel numberChannels 1…7
Defines the vertical/horizontal position of open/closedindication0 = vertical LEDs indicate open status (horizontal LEDs
indicate closed status)1 = vertical LEDs indicate closed status (horizontal LEDs
indicate open status)
Specifies the use of the object indicator unit0 = not used1 = used
Code number of object indicator unit
Write Setting
Data communication addressDefault value 99
Example 1:Indicator 109 (parameter S109) indicates thestatus read via input channel 2. Output 20 isused to open the object and, consequently,
output 21 must be used to close the same object.The object is a circuit breaker and closed statusis indicated by vertical red LEDs.
Syntax rules for configuring the control moduleSPTO 6D3
1. The configuration work has to be done in thesetting mode.
2. Up to seven objects can be configured (sevensettings in the range of S101…S116)
3. Only the input channel numbers 1…7 areaccepted. Any number can be used only once.
4. If no object indicator is used, no other valuesneed to be given.
5. The output code numbers 20 …31 can begiven only once. If the output code numberis 0, the definition of the object (i.e. CB/otherobject) need not to be given.
6. Only two objects can be defined as circuitbreakers
Normally, the control module is in the opera-tion mode, which means that the interlockingprogram is in use. The configuration of thecontrol module is made in the setting mode(S198=0).
When parameter S100 is 0, the configuration isfreely selectable. For a freely selectable configu-ration, only those objects, which are to be used,need to be set.
13
Example 2:To configure five objects (indicators 101, 109and 103 for disconnectors, indicator 102 for a
circuit breaker and indicator 108 for an earthswitch), the following commands are required:
>99WS198:0:XX ; Enter into setting mode>99WS100:0:XX ; Enter into mode for free configuration>99WS101:1,1,1,20,0:XX ; Disconnector 1: vertical red LEDs indicate closed status
for input channel 1.Control outputs OPEN1 and CLOSE1
>99WS109:1,1,2,22,0:XX ; Disconnector 2: vertical red LEDs indicate closed statusfor input channel 2.Control outputs OPEN2 and CLOSE2
>99WS102:1,1,3,24,1:XX ; Circuit breaker: vertical red LEDs indicate closed statusfor input channel 3.Controloutputs OPEN3 and CLOSE3
>99WS103:1,1,4,0,0:XX ; Disconnector 3: vertical red LEDs indicate closed statusfor input channel 4.No control
>99WS108:1,0,5,0,0:XX ; Earthing switch: horizontal red LEDs indicate closed statusfor input channel 5.No control
>99WV151:1:XX ; Store the set parameters
After this the interlocking program has to bewritten before it is possible to open or close thecircuit breaker and the disconnectors. See Chap-ter "Interlocking".
The selected configuration can be read indicatorby indicator or all together with one singleinstruction.
Example 3:Reading the configurations of indicators 101…116 by using one single instruction.
>99RS101/116:XX
This instruction will give the setting values ofeach indicator (101 to 116 ), including those notconfigured into the system. The parameter val-ues of the indicators not in use are zero.
913B
Fig. 7. Object configuration set in example 2.
14
The interlocking program is used to inhibit theclose or open command for a controllable objectin certain situations. In practice the interlockingprogram of the control module SPTO 6D3operates according to the permission principle,i.e. any control operation not enabled by theinterlocking logic is inhibited.
The interlocking program of the control mod-ule reads the status of input channels 1…7 and8…17 and enables the opening or closing of acontrollable object when the actual open orclose command is given with the local push-buttons or obtained via the serial bus or theinput channels 8…17.
Fig. 8. Operation principle of the control func-tions.
When parameter S198 = 0, the control moduleis in the setting mode, and when parameterS198 = 1, the module is in the operation mode.When the control module is in the setting modeand the interlockings are in use the INTER-LOCK indicator on the front panel is lit. In theoperation mode the interlocking program isexecuted and it cannot be changed by the user.Only those operations enabled by the interlock-ing program can be executed.
In the setting mode the interlocking program isnot executed and program changes can be made.In the setting mode the control of the objects isnot allowed, except for the case that theinterlockings are completely out of use.
The interlocking program, when used, is per-manently operative both in the local and remotecontrol mode, even when the control com-mands are given via input channels 8…17. Theinterlocking program is executed every 20 ms.The interlocking program can be taken com-pletely out of use with setting S199 .
Example 4:In example 2 a configuration was set. If nointerlockings are to be used the setting conti-nues with the following commands:
>99WS199:0:XX ; Set interlockings out ofuse
>99WV151:1:XX ; Store the set parameters
In this case when the interlocking program isnot used, parameter S198 cannot be given thevalue 1. The status indication and object controlis however operating normally.
The interlockings are set via the SPA bus byusing a programming language according to theDIN 19239 standard. The structure of a pro-gram command is:
OPERATION OPERAND
LOADN 2
OPERATION is a logic commandOPERAND is the code number of an input oran output or the number of a temporary or aspecial register.
The following logic commands are used:
LOAD Reads the status of an input or aregister
LOADN Reads the inverted status of an inputor a register
AND And operationANDN And not operationOR Or operationORN Or not operationOUT Writes to an output or a registerEND End of program
For inputs 1…7 a separate operand code isdefined for each status, open, closed or unde-fined. The active status of inputs 8…17 can beused as operands in the logic.
In SPTO 6D3 the following operand values canbe used with the operations LOAD, LOADN,AND, ANDN, OR, ORN :
1…7 = input channel number; Input code, if the status " closed"is used in the logic
101…107 = input channel number + 100; Input code, if the status"undefined" is used in the logic
201…207 = input channel number + 200; Input code, if the status "open" isused in the logic
8…17 = input channel number; Input code, if the status "active"is used in the logic
70…89 ; Number of a temporary register60 and 61 ; Number of a special register62 ; Position information of the L/R
key switch
Interlocking
OPEN/CLOSE COMMAND
ENABLE BYINTERLOCKING
&
OPEN/CLOSE OUTPUT
t
15
For the control module SPTO 6D3 the follow-ing operand values can be used with the OUToperation:
20…31 ; Output code number70…89 ; Number of a temporary register
The input channel numbers and the outputcodes are the same as those defined when theconfiguration was set.
The two special registers, 60 and 61 have con-stant values; register 60 is always zero andregister 61 is one. With register 62 the interlock-ing program is informed of the position of the L/R key switch. In the position L (Local) the valueof the register is 0 and in the position R (Re-mote) the value is 1. The registers 70...89 areused as temporary data storages during the ex-ecution of an interlocking program.
Example 5:How to store the result of a logic operation intoa temporary register.
>99WM200:LOAD 201:XX; Read the open status of an object wiredto input 1
>99WM201:AND 202:XX; Read the open status of an object wiredto input 2
>99WM202:OUT 70:XX; Write the result of the logic operation intoregister 70
After these commands the value of register 70is 1, if both objects are open.
Example 6:How to use input channels 8…17 in the logic.
>99WM200:LOAD 1:XX; Read the closed status of an object wiredto input 1
>99WM201:AND 8:XX; Read the active status of input channel 8
>99WM202:OUT 20:XX; Enable output 20
After these commands the output OPEN1 (code20) is enabled if object 1 is closed and inputchannel 8 is active.
Syntax rules for setting the interlocking logic forthe control module SPTO 6D3:
1. The setting has to be done in the settingmode.
2. With the interlocking program the user de-fines when it is allowed to open and closean object.
3. The setting parameters M200…M300 areused. A setting parameter is equal to the linenumber of the interlocking program.
4. The interlocking program always begins withM200. No empty lines are permitted.
5. The interlocking program always starts witha LOAD or LOADN command.
6. The last command of the program must beEND.
7. One operand can be used only once with theOUT command.
8. Before the LOAD and LOADN commands,except for the first one, the OUT commandshould be used.
9. Before the END command the commandOUT should be used
Example 7:Setting of the interlocking logic. The configu-ration is the same as in example 2. The dis-connectors 1 and 2 and the circuit breaker are tobe controlled.
Opening of disconnector 1 is allowed only whenthe circuit breaker and disconnector 2 are open.Closing of disconnector 1 is allowed only whendisconnector 2 is closed and the external inputchannel 8 is active.
Opening of disconnector 2 is allowed only whenthe circuit breaker and disconnector 1 are open.Closing of disconnector 2 is allowed only whendisconnector 1 is closed and the external inputchannel 8 is active. This logic is not shownbelow because it is almost the same as that ofdisconnector 1.
Opening of the circuit breaker is always allowed.Circuit breaker closing is allowed when thestatus of disconnector 3 is not undefined and theearth switch is open.
16
Instead of these written interlocking condi-tions, the following logic diagram can be used:
Fig. 9. Simplified logic diagram for the inter-locking logic in example 7.
Below a detailed logic diagram is shown.
Fig. 10. Detailed logic diagram for the inter-locking logic in example 7.
The program commands are written on the basisof the detailed logic diagram. As a default theprogram area M200…M300 is filled with ENDcommands. The user overwrites these ENDcommands with the actual interlocking pro-gram.
A configuration was set in example 2. If theinterlockings described above are to be used thesetting continues with the following commands.
The interlocking program for disconnector 2 ishere not given:
>99WM200:LOAD 203:XX; Read open status of CB
>99WM201:AND 202:XX; Read open status of disconnector 2
>99WM202:OUT 20:XX; Enable opening of disconnector 1 if CBand disconnector 2 are open
>99WM203:LOAD 2:XX; Read the closed status of disconnector 2
>99WM204:AND 8:XX; Read active status of input 8
>99WM205:OUT 21:XX; Enable closing of disconnector 1 if dis-connector 2 is closed and input 8 is active
>99WM206:LOAD 61:XX; Read the value of special register 61(always 1)
>99WM207:OUT 24:XX; Always enable open command of CB
>99WM208:LOAD 205:XX; Read open status of earth switch
>99WM209:ANDN 104:XX; Read inverted undefined status (open orclosed status) of disconnector 3
>99WM210:OUT 25:XX; Enable closing of CB if earth switch isopen and disconnector 3 is open or closed
>99WM211:END:XX; End of interlocking program
>99WS198:1:XX; Change interlocking program into runmode
>99WS199:1:XX; Starts interlocking program
>99WV151:1:XX; Store the set parameters
The program is automatically compiled, whenthe operation mode is re-entered. If syntax errorsare detected in the program, the interlockingprogram remains in the setting mode. When thesyntax errors have been corrected the interlock-ing program can be changed to operation mode.
The interlocking program can be by-passed intwo ways;- For testing purposes the SG1/1 switch on the
front panel can be turned into position 1.Then the interlocking program is interruptedand opening/closing of the object is alwaysenabled.
- If the interlocking logic is to be taken out ofuse permanently variable S199 is set to 0.Then opening or closing of the object is alwaysenabled.
The interlocking program does not affect thetripping signals of the protection relay modules.
25
24
21
20
ENABLE TO CLOSE CB205
& 104
ENABLE TO OPEN CB 61 1
ENABLE TO CLOSEDISCONNECTOR 1
2
8 &
ENABLE TO OPEN DISCONNECTOR 1
203
202 &
ENABLE TO CLOSE CBEARTH-SWITCH OPEN
& DISCONN.3 NOTUNDEFINED
ENABLE TO OPEN CB ALWAYS 1
ENABLE TO CLOSEDISCONNECTOR 1
DISCONN.2 CLOSED
INPUT 8 ACTIVE &
ENABLE TO OPEN DISCONNECTOR 1
CB OPEN
DISCONN.2 OPEN &
17
Direct OutputControl
The Direct Output Control logic controls theoutputs OPEN1…6 and CLOSE1…6 plus theoutputs SIGNAL5 and 6. Outputs that are notused for controlling an object or for signallingactive status of inputs 8…17 can be controlledby the Direct Output Control function.
The outputs are activated in accordance withthe selected logic diagram and the status ofinput channels 1…7 and 8…17. An output thathas been controlled remains active as long asthere is no such change in the status of theinputs, that the logic inhibits the control of theoutput.
Fig. 11. Operation principle of the Direct Out-put Control.
The Direct Output Control program has thesame setting principles and program structure asthe interlocking program. The differencies be-tween the two logic programs are;
- The codes of outputs OPEN1…6 and CLOSE1…6
- The outputs SIGNAL5 and 6 can be control-led by the Direct Output Control program.
The output codes are:
Output code Definition
220 OPEN1221 CLOSE1222 OPEN2223 CLOSE2224 OPEN3225 CLOSE3226 OPEN4227 CLOSE4228 OPEN5229 CLOSE5230 OPEN6231 CLOSE6
40 SIGNAL541 SIGNAL6
The Direct Output Control program is writtenafter the interlocking program using the SPAprotocol commands M200…M300. These twoprograms have a common END command.
Example 8:An interlocking logic was set in example 7. Inthis example a Direct Output Control logicprogram is added for the output SIGNAL5.
Output SIGNAL5 is to be activated if:
- Disconnector 3 is open and input channel 9 isactivated
Fig. 12. Logic diagram for the Direct OutputControl in example 8.
The Direct Output Control logic above is startedwith the following commands.
…; Interlocking logic command linesM200…M210
>99WM211:LOAD 204:XX; Read open status of disconnector 3
>99WM212:AND 9:XX; Read active status of input 9
>99WM213:OUT 40:XX; Activate SIGNAL5 output
>99WM214:END:XX; End of program
>99WS198:1:XX; Change program into run mode
>99WS199:1:XX; Start program
>99WV151:1:XX; Store the programmed parameters
DIRECT OUTPUTCONTROL
1
OPEN1…6/CLOSE1…6,SIGNAL5 OR 6OUTPUT
40& 204 9 SIGNAL 5
18
Input channels8…17(modified 96-12)
The input channels 8…17 are used to read otherbinary signals than circuit breaker and discon-nector status information. The binary signalscan be external contact signals or internal binarysignals e.g. starting and tripping signals of theprotection relay modules. For the definition ofinternal and external signals see chapter"Intermodular control signal exchange" in theuser´s manual of the feeder terminal.
The status of the binary inputs 8…17 can beread via the SPA-bus. The status of input chan-nels 8…13 is also indicated locally with LEDson the front panel. The LED of the activatedinput is lit and when the input is deactivated theindicator is switched off. The indicators of theinput channels 8…13 can individually be set tobe memory controlled, which means thattheindicator of a channel activated once for at least10 ms is not switched off until it has been reset.
Using parameter S2, each input channel can beselected to be active at high input signal state (1)or at low input signal state (0). High stateactivation means that an input is considered tobe active if a voltage is applied on the corre-sponding external input or if a protection relaymodule has activated its output signal. Low stateactivation is the opposite to high state activa-tion. As a default all the inputs are activated athigh input signal state.
Characteristics of input channels 8…17:- An events is formed by a status change- The channels can be used to activate the
outputs OPEN1…6 and CLOSE1…6- The channels can be used to inhibit the out-
puts OPEN1…6 and CLOSE1…6- The channels can be used to activate one of the
outputs SIGNAL5 or 6- The channels can be included in the interlock-
ing logic- The channels can be included in the Direct
Output Control logic- Channel 10 can be used as a control input for
inhibiting auto-reclosings by means of anexternal control signal.
- Channel 11 can be used as an energy pulsecounter input, see chapter "Scaling of mea-sured values"
- Channel 14 can be used as external startinitiation of auto-reclosing, see chapter "Auto-reclosing"
Via one input channel one signal output (SIG-NAL5 or 6) and one control output (OPEN1…6or CLOSE1…6) can be activated simultane-ously. The interlocking logic is checked when theOPEN or CLOSE outputs are activated. Theposition of the REMOTE/LOCAL key switch
has no effect when input channels 8…17 are usedto activate the OPEN or CLOSE outputs.
Accordingly one SIGNAL output can be acti-vated and one control output inhibited simulta-neously. The output to be activated or inhibitedis selected with parameters S3 and S4. Theoutput to be activated or inhibited has to beconfigured to a circuit breaker or a disconnector.
If an input channel has been selected to controla SIGNAL output, the output is activated aslong as the input is active. The length of theopening and closing pulse is defined by the SPAbus variables V5 and V6 and does not dependon the input pulse length.
Example 9:Programming of input 8. The programmingcan be done in the operation mode.
>99W8S2:1:XX; Define input 8 to be active at highstate (1)
>99W8S3:40:XX; Configure input 8 to activate outputSIGNAL5
>99W8S4:20:XX; Configure input 8 to activate outputOPEN1
>99WV151:1:XX; Store the programmed parameters
Fig. 13. Operation of outputs SIGNAL5 andOPEN1 when input channel 8 in example 9 isactivated.
If an input channel is used to inhibit a controlsignal the opening or closing of an object isinhibited as long as the input is active. If theinterlockings are set out of use (S199=0), inputchannels 8…17 cannot be used to inhibit thecontrol of the OPEN and CLOSE outputs.
If input 11 operates as an energy pulse counterinput or input 10 as a control input for inhibit-ing auto-reclose functions, these inputs cannotbe used for other purposes. As a default inputchannels 8…17 operate as ordinary input chan-nels, and do not activate or inhibit any outputs.
NOT ACTIVATED
ACTIVATED
NOT ACTIVATED
ACTIVATED
ACTIVATED
NOT ACTIVATEDINPUT CHANNEL 8
SIGNAL5 OUTPUT
OPEN1 OUTPUT
Defined by V5
19
When the first three ways of operation are usedthe OPEN and CLOSE outputs deliver pulses.Before an output can be activated the operationmust be enabled by the interlocking logic.
The open and close pulse lengths of the outputsare determined by SPA bus variables V5 and V6.The pulse length has to be determined for theinput channels to which the objects to be con-trolled are connected.
The pulse lenght can be set within the range0.1…100 s with a time resolution of 0.1 s.
Example 10:The pulse lenghts can be set in the operationmode. The following SPA bus commands areused to program the open and close pulse lengths.The object is configured to input channel 2.
>99W2V5:0.5:XX; Set the open pulse length at 0.5 seconds
>99W2V6:0.2:XX; Set the close pulse length at 0.2 seconds
>99WV151:1:XX; Store the programmed parameters
The open and close commands are given viaserial communication to the input channel onwhich the object to be controlled is located. Theoutputs OPEN1…6 and CLOSE1…6 can becontrolled via serial communication accordingto two principles:
- Direct control: An output command is givenby using parameter O1. When this parameterhas been given the value 0 (open) or 1 (close)the corresponding output pulse is given pro-vided the operation is enabled by the inter-locking program.
- Secured control: Initially the output is set intoa state of alert by means of parameter V1 foropening and parameter V2 for closing. Afterthat the output command is executed by meansof parameter V3, if enabled by the interlock-ing program. The state of alert is automati-cally cancelled when the execute commandhas been given. The state of alert can also becancelled by parameter V4.
The control module SPTO 6D3 has 14 outputs:two signal outputs (SIGNAL5 and 6) and 12control outputs (OPEN1…6 and CLOSE1…6).For the purpose of setting the outputs are codedas follows:
Output Output code for Output code forconfiguration Direct Outputand interlocking Control
OPEN1 20 220CLOSE1 21 221OPEN2 22 222CLOSE2 23 223OPEN3 24 224CLOSE3 25 225OPEN4 26 226CLOSE4 27 227OPEN5 28 228CLOSE5 29 229OPEN6 30 230CLOSE6 31 231SIGNAL5 40 40SIGNAL6 41 41
The outputs OPEN1 and CLOSE1, OPEN2and CLOSE2 etc. always form pairs. The OPENoutput is used to open an object and the CLOSEoutput is used to close the same object.
The OPEN and CLOSE outputs can be con-trolled in four ways:- Locally by means of the OPEN and CLOSE
push buttons on the front panel of the controlmodule
- Remotely with commands via the SPA bus- Remotely via the binary inputs 8…17, see
chapter "Input channels 8…17"- By the Direct Output Control logic, see chap-
ter "Direct Output Control"
In addition, the OPEN and CLOSE outputs arecontrolled by the auto-reclose unit, if the ARfunctions are in use.
For the selection of the objects to be controlledvia the OPEN and CLOSE outputs, see chapter"Configuration".
Outputs
20
Example 11.Open and close control via the serial bus. Theobject to be controlled has been configured toinput channel 4 and the object is controlled bythe outputs OPEN3 and CLOSE3. No inter-lockings are used.
>99WS198:0:XX; Change into the setting mode
>99WS102:1, 1, 4, 24, 1:XX; Object status information to input chan-nel 4, control outputs OPEN3 andCLOSE3
>99WS199:0:XX; Set interlockings out of use
>99WV151:1:XX; Store set parameter values
>99W4V1:1:XX; Open selection to the object of inputchannel 4 (secured control)
>99W4V3:1:XX; Execute the selected open controlcommand, i.e. OPEN3 activated
>99W4O1:1:XX; Close the circuit breaker (direct control),i.e. CLOSE 3 activated
When the Direct Output Control logic is usedto control the outputs OPEN1…6 and CLOSE1…6, the output is activated as long as thecontrol signal is active.
The operation of the outputs OPEN1…6 andCLOSE1…6 can be inhibited in two ways:- By the interlocking program, see chapter "In-
terlocking"- By input channels 8…17, see chapter "Input
channels 8…17"
The outputs SIGNAL5 and 6 can be controlledin two ways:- By input channels 8…17, see chapter "Input
channels 8…17"- By the Direct Output Control program, see
chapter "Direct Output Control"
The control module SPTO 6D3 includes a self-supervision system which controls a signal out-put, IRF. The output is activated when theauxiliary power is connected and no fault hasbeen detected by the self-supervision system.The output signal is deactivated, if the auxiliarypower of the equipment is switched off or apermanent internal fault has been detected. Theself -supervision output is connected to thecommon IRF output of the feeder terminal.
21
The control module measures three phase cur-rents, three phase-to-phase voltages, active andreactive power and energy. For energy pulsecounting the control module includes a pulsecounter input. Other measurements require anoptional measuring module which rectifies andprocesses the analog measuring signals.
Measuring module SPTM 8A1 (optional)
The measuring module type SPTM 8A2 is usedfor processing the phase current and phase-to-phase voltage signals. This module also includestwo mA inputs which are used for measuringactive and reactive power via external measuringtransducers. The module rectifies the phasecurrent and the phase-to-phase voltage signalsand converts the mA signals to voltage signalsfor further transfer to the control module.
Scaling of measuredvalues
3I (~)
3U (~)
P (mA)
Q (mA) Q (U)
P (U)
3I (-)
3U (-)
SPTM 8A1
I
U
I
U
Fig. 14. Block diagram of measuring moduleSPTM 8A1.
Measuring module SPTM 6A2 (optional)
The optional measuring module type SPTM6A2 is used for processing phase current andphase-to-phase voltage signals. This module alsoincludes the electronics required to form, usinginternal current and voltage signals, measuringsignals corresponding to active and reactivepower, according to the Aron-connection prin-ciple. The measuring module SPTM 6A2 recti-fies the phase current and the phase-to-phasevoltage signals and routes them to the controlmodule together with the signals proportionalto the active and reactive power.
3I (~)
3U (~)
Q (-)
P (-)
3I (-)
3U (-)
SPTM 6A2
3UI x cosϕ
3UI x sinϕ
3
2
2
2
Fig. 15. Block diagram of measuring moduleSPTM 6A2.
Measuring module SPTM 6A3 (optional)
The measuring module type SPTM 6A3 is usedfor handling phase current and phase-to-phasevoltage signals. This module also includes theelectronics required to form signals which, us-ing the internal current and voltage signals,generates signals corresponding to the activeand reactive power. The power measurement isbased on one voltage and two current signals.The voltage to be used and the correspondingcurrents can be selected with switches. Themeasuring module SPTM 6A3 rectifies the phasecurrent and phase-to-phase voltage signals andtransmits them to the control module togetherwith the signals proportional to active and reac-tive power.
3I (~)
3U (~)
Q (-)
P (-)
3I (-)
3U (-)
SPTM 6A3
3UI x cosϕ
3UI x sinϕ
1
2
2
1
Fig. 16. Block diagram of measuring moduleSPTM 6A3.
Energy can be measured in two ways; by usinginput 11 as a pulse counter or by integrating themeasured power. In the former case an externalenergy meter with pulse output is required.
22
Phase currents
The three phase currents are displayed locally asA and kA values and transferred via the SPA busas ampere values. Prior to this, though, themeasured values must be scaled, using theinformation about the rated current of the pri-mary side of the current transformer.
Example 12:Scaling of a measured phase current value.
The rated current of the primary side of thecurrent transformers is 400 A. For scaling thecurrent must be given in amperes. The scalingfactor is 400.00.
>99WS9:400.00:XX; Set scaling factor S9 at 400.00
>99WV151:1:XX; Store the set parameters
The scaling factor can be set within the range0.00…10000.00. Variable S9 has been giventhe default value 200.00 after factory testing.
Phase-to-phase voltages
The voltages are displayed locally and trans-ferred via the SPA bus as kV values. Prior to this,though, the measured voltages have to be scaledby means of a scaling factor. The scaling factoris equal to the rated voltage of the primary sideof the voltage transformers, divided by 100.
Example 13:Scaling of a measured phase-to-phase voltagevalue.
The rated voltage of the primary side of thevoltage transformers is 16 kV. For scaling thevoltage must be given in volts. The scaling factoris 16000 / 100 = 160.00.
>99WS10:160.00:XX; Set scaling factor S10 value 160.00
>99WV151:1:XX; Store the set parameters
The scaling factor can be set within the range0.00…10000.00. Variable S10 has been giventhe default value 210.00 after factory testing.
Active and reactive power
Active power is displayed locally and transferredvia the serial bus as megawatt (MW) values.Correspondingly the value of reactive power isdisplayed locally and transferred via the serialbus as megavar (Mvar) values. The power ismeasured in both directions. Positive valueshave no sign and negative values are indicated bythe red minus sign.
Power can be measured via an optional mea-suring module type SPTM 8A1 (option 1),SPTM 6A2 (option 2) or SPTM 6A3 (option3). Because the measuring principle varies withthe measuring modules, the possible optionused must be programmed into the controlmodule (parameter S90). In addition powermeasurement can be enabled or disabled withparameter S91. As a default power measurementis disabled (S91=0).
A) Power measurement via mA inputs(SPTM 8A1)
The input signal range of the mA-inputs is -20…0...+20 mA. The following setting parametersare used for scaling the inputs:
S12 = Low limit of mA signal related to activepower
S13 = High limit of mA signal related to activepower
S14 = Low limit of mA signal related to reactivepower
S15 = High limit of mA signal related to reac-tive power
S16 = Value of active power corresponding tomA signal at low limit
S17 = Value of active power corresponding tomA signal at high limit
S18 = Value of reactive power corresponding tomA signal at low limit
S19 = Value of reactive power corresponding tomA signal at high limit
When power measurement has been enabledthe low and high limits of the mA signals are firstgiven and then the corresponding values ofactive and reactive power.
23
Example 14:Measurement of active power via optional meas-uring module SPTM 8A1.
Active power is to be measured in the range-50MW...+135 MW and the correspondingmA range is -20mA…20 mA.
>99WS90:1:XX; Measuring module SPTM 8A1 is used
>99WS91:1:XX; Enable power measurement
>99WS12:-20:XX; Set low limit of mA signal
>99WS13:+20:XX; Set high limit of mA signal
>99WS16:-50.00:XX; Set value of power corresponding to setlow mA signal limit
>99WS17:+135.00:XX; Set value of power corresponding to highmA signal limit
>99WV151:1:XX; Store set parameters
Example 15:Measurement of reactive power via optionalmeasuring module SPTM 8A1. Reactive poweris to be measured in the range 0... 2.2 Mvar andthe corresponding mA signal range is 4...20 mA.
>99WS90:1:XX; Measuring module SPTM 8A1 is used
>99WS91:1:XX; Enable power measurement
>99WS14:+4:XX; Set low limit of mA signal
>99WS15:+20:XX; Set high limit of mA signal
>99WS18:+0.00:XX; Set value of power corresponding to lowmA signal limit
>99WS19:+2.20:XX; Set value of power corresponding to highmA signal limit
>99WV151:1:XX; Store set parameters
B) Power measurement using internal currentand voltage signals, measuring modulesSPTM 6A2 or SPTM 6A3.
In this case the measured power is automaticallyscaled when the measured current and voltagevalues are scaled. The correct measuring modulemust be selected and power measurement mustbe enabled.
Example 16:Measurement of active and reactive power viaoptional measuring module SPTM 6A2 orSPTM 6A3. The current and voltage signalshave been scaled already.
>99WS90:2:XX; Measuring module SPTM 6A2 orSPTM 6A3 is used
>99WS91:1:XX; Enable power measurement
>99WV151:XX; Store the set parameters
The scaled active and reactive power values canbe transmitted to remote control systems overthe SPA, variable V3 for active power and vari-able V4 for reactive power.
24
Energy
Energy can be measured in two ways; either byusing input channel 11 as an energy pulse coun-ter or by integrating energy the measured powerover time. The measured energy is displayedlocally with three digits in three parts; inkilowatthours, in megawatthours and in giga-watthours. Correspondingly the energy valuecan be read via the serial bus in three parts withthree digits (parameters V8…V10) but also asone part in kilowatthours with nine digits (pa-rameter V5).
A. Use of input channel 11 as a pulse counter
Before input channel 11 can be used as a pulsecounter input energy measurement must beenabled. The default setting of variable S92 is 0,which means that energy measurement is disa-bled.
The following parameters must be defined forchannel 11:
S1 = definition of channel 110 = general binary input (default)1 = pulse counter input without local LED
indication on front panel2 = pulse counter input with local LED
indication on front panel
S2 = contact type0 = break contact (NC contact)1 = make contact (NO contact) (default)
The following parameters must be defined forchannel 0:
S3 = definition of kWh value per pulse, settingrange 0.00…1000 kWh. Default setting 1
Example 17:Energy measurement via input 11 defined aspulse counter input.
>99WS92:1:XX; Enable energy measurement
>99WS3:5:XX; Set energy value 5 kWh per pulse
>99W11S1:1:XX; Define input 11 as a pulse counter inputwithout local LED indication
>99W11S2:1:XX; Make contact
>99WV151:1:XX; Store set parameters
B. Energy measurement by integration.
Energy can also be measured by integrating themeasured active and reactive power over time.In this case the measured active energy in onedirection is displayed locally, whereas both posi-tive and negative active and reactive energyvalues can be read over the SPA bus.
The integration is used automatically if energymeasurement is enabled by parameter S92 andinput channel 11 has not been defined as a pulsecounter input.
Example 18:Energy measurement by integrating the meas-ured power value over time. First the powermeasurement must be enabled and the powervalues scaled, see examples 14…16.
>99WS92:1:XX; Enable energy measurement
>99WV151:1:XX; Store the set parameters
25
The control module SPTO 6D3 features anauto-reclose unit for five auto-reclose cycles.The unit obtains its start initiation signals fromthe protection relay modules. The start initia-tion signals are named AR1, AR2 and AR3.
The signals AR1, AR2 and AR3 are generated bythe starting or tripping signals of the protectionrelay modules. The detailed function of thesignals and their configuration are described inthe general description of the feeder terminal, inchapter "Intermodular control signal exchange".Under the control of these signals the auto-reclose unit of the control module executes therequired auto-reclose shots.
If the starting signals of the protection relaymodules are used to initiate the auto-reclosingthe control module opens the breaker after apreset time, the so called starting time. If thetripping signals of the protection relay modulesare used to initiate auto-reclosing, the con-cerned protection relay module opens thebreaker. In both cases the control module closesthe circuit breaker after the preset dead time (seeFig. 17).
If required, external start initiation of auto-reclosing can be achieved via input channel 14.This input can be logically connected to one ofthe three initiation signals, AR1, AR2 or AR3.Setting parameter S1 is used for selecting thesignal.
Each auto-reclose cycle has the following pa-rameters, x = the number of the cycle + 1:
Sx1 Defines if the auto-reclose cycle is to bestarted or inhibited when signal AR1 isactivated
Sx2 Defines if the auto-reclose cycle is to bestarted or not started when signal AR2 isactivated
Sx3 Defines if the auto-reclose cycle is to bestarted or not started when signal AR3 isactivated
Sx4 Defines the time (starting time) after whichthe control module opens the circuitbreaker when signal AR2 is activated. Set-ting range 0.00…5.00 s in 0.1 s steps. If atripping signal is used to initiate the auto-reclose cycle the starting time should be0.00
Sx5 Defines the time (starting time) after whichthe control module opens the circuitbreaker when signal AR3 is activated. Set-ting range 0.00…5.00 s in 0.1 s steps. If atripping signal is used to initiate the auto-reclose cycle the starting time should be0.00
Sx6 Defines the dead time of the auto-reclosecycle. Setting range 0.2…300.0 s in stepsof 0.1 s.
Auto-reclosing(modified 96-12)
Auto-reclose parameters and event codes for the auto-reclose functions.
cycle 1 cycle 2 cycle 3 cycle 4 cycle 5
AR1 inhibits/starts S21 S31 S41 S51 S61AR2 does not start/starts S22 S32 S42 S52 S62AR3 does not start/starts S23 S33 S43 S53 S63Starting time from AR2 S24 S34 S44 S54 S64Starting time from AR3 S25 S35 S45 S55 S65Dead time S26 S36 S46 S56 S66
AR in progress E11 E16 E21 E26 E31CB closed by AR E12 E17 E22 E27 E32AR from AR1 in progress E13 E18 E23 E28 E33AR from AR2 in progress E14 E19 E24 E29 E34AR from AR2 in progress E15 E20 E25 E30 E35
Reclaim time S77
AR out of use/in use S78
Storing V151
26
If the control module is to carry out the finaltrip, the following parameters are to be set:
Function Para-meter
Final trip after AR from AR1 (0 or 1) S71Final trip after AR from AR2 (0 or 1) S72Final trip after AR from AR3 (0 or 1) S73Final trip time after AR from AR1 S74Final trip time after AR from AR2 S75Final trip time after AR from AR3 S76
Via the SPA bus the event codes E36…E38 ofthe final trip can be read.
Event Code
Final trip after AR from AR1 E36Final trip after AR from AR2 E37Final trip after AR from AR3 E38
The reclaim time, parameter S77, is the same forall auto-reclose cycle. The setting range is0.2…300.0 s. The auto-reclose function can beset out of use or alerted with parameter S78.
Each auto-reclose cycle can be started by any ofthe three start initiating signals AR1, AR2 andAR3. The signals to start the auto-reclose cyclesare selected with the setting parameters Sx1…Sx3via the SPA bus. If the setting Sx1 has the value0, and signal AR1 becomes active the concernedcycle is inhibited. The cycles are always per-formed in the order 1, 2, 3, 4, 5 and final trip.
When the auto-reclose cycles are started by thesignal AR1, the control module provides theCB opening command immediately, without apreceding start delay. The starting signals AR2and AR3 can be given separate starting times forthe separate auto-reclose cycles.
When lit the red LED marked O -> I on thefront panel indicates that an auto-reclose cycle isin progress. The LED is lit when the startingtime has elapsed and goes out when a CB closecommand is given. The output SIGNAL5 or 6can be used to indicate that an auto-reclose cycleis in progress. The output is selected with pa-rameter S80 and it operates in parallel with theLED indication.
The auto-relose function also carries out a finaltrip of the circuit breaker if the last programmedAR cycle also proves unsuccessful. The final tripfunction is selected with the setting parametersS71, S72 and S73 for the start initiating signalsAR1, AR2 and AR3, in which case the auto-reclose function uses the control module’s con-trol outputs for tripping.
Final tripping by the auto-reclose module canbe used when the start signals of the protectionrelay modules are used for initiating auto-rec-losing. In this case the operation times of theprotection relay modules must be longer thanthe corresponding trip time of the auto-reclosefunction. Each start initiating signal has its owntrip delay, setting parameters S74…S76.
Outputs SIGNAL5 or 6 can be used to indicatethat the control module has given a final tripsignal. The output is selected with parametersS81…S83 for the initiating signals AR1…AR3.The length of the output pulse is the same as thatof the open pulse.
For its operation the auto-reclose programmerequires information about the circuit breakerstatus. When a signal from one of the protectionrelay modules requests starting of an auto-reclosecycle, the status of the circuit breaker is checked.If the circuit breaker is closed, an auto-reclosecycle starts.
When the dead time of the cycle has elapsed, thestatus of the circuit breaker is checked again. Ifthe CB is open a closing command is delivered.Before the auto-reclose program opens or closesthe circuit breaker it checks the interlockingprogram and if the operation is enabled thecommand is executed. During the dead time theclosing of the circuit breaker is inhibited.
When an auto-reclose cycle (e.g. cycle 3) hasbeen performed, the cycle in question and allprevious cycles (cycle 1 and 2) will be blockedfor the reclaim time. During the reclaim time anew start request after an unsuccessful cycleautomatically starts the following cycle that hasbeen programmed to start. The reclaim timefollowing the auto-reclose cycle is effective aslong as one of the protection relay modulescontinues requesting starting.
27
Fig. 17. Simplified block diagram for the auto-reclose functions in the control module SPTO 6D3.
CLOSE ENABLE BYINTERLOCKING
OPEN ENABLE BYINTERLOCKING
AR3AR2AR1 ARINH
S73
S72
S71
&
OPEN
CLOSE
CB STATUS;OPEN
& R
S
S23
S22
S21
1 S24
tS26
t
CB STATUS;CLOSED &
1
S25t
S77t
V6t
V5t
1 S78
SG1/2
SHOT 1
SHOT 3
SHOT 4
SHOT 5
&
OPEN
CLOSE
CB STATUS;OPEN
& R
S
S33
S32
S31
1 S34
tS36
t
CB STATUS;CLOSED &
1
S35t
S77t
V6t
V5t
1 S78
SG1/2
SHOT 2
OPENCB STATUS;CLOSED & 1
S75t
S76t
V5t
FINAL TRIP BY AR
S74t
&
&
CB OPEN
CB CLOSE
S79
S79
28
CURRENT
SETTING I>
CB STATUS
I> START=SIGNAL 3OUTPUT AND AR2-SIGNAL
I>TRIP= TRIPOUTPUT
t>ON
OFF
ON
OFF
ON
OFF
CB OPENBY AR
ON
OFF
I> ALARM=SIGNAL1OUTPUT
ON
OFF
CB CLOSEBY AR
DEAD TIME (S26) DEAD TIME (S36)
ON
OFF
SHOT 1 SHOT 2 FINAL TRIP
S24 S34
CURRENT
SETTING I>
CB STATUS
I> START=SIGNAL 3OUTPUT
I>TRIP=TRIP OUTPUT AND AR2 SIGNAL
t>ON
OFF
ON
OFF
ON
OFF
CB OPENBY AR
ON
OFF
I> ALARM=SIGNAL1OUTPUT
t> t>
ON
OFF
CB CLOSEBY AR
DEAD TIME (S26) DEAD TIME (S36)
ON
OFF
SHOT 1 SHOT 2 FINAL TRIP
S24=0 S34=0
Fig. 18. a) Signal flow diagram for an AR cycle started by the start signal of the I> stageb) Signal flow diagram for an AR cycle started by the trip signal of the I> stage
Auto-reclosing can be inhibited in the followingways;
- By setting input 10 in a special mode andapplying an external voltage to the input. Theinhibit function is active as long as a controlvoltage is applied to the input. When thevoltage disappears the reclaim time starts.
- By giving the SPA bus variable S78 the value0.
- By turning the front panel switch SG1/2 toposition 1.
An auto-reclose sequence that has started can beinterrupted in the following ways;
- By setting input 10 in a special mode andapplying an external voltage signal to theinput (signal ARINH).
- Via the SPA bus by means of variable S79.- By giving an open command to a circuit
breaker that is already open, during the deadtime.
The reclaim time always starts when an auto-reclose sequence is interrupted.
When the circuit breaker is closed locally or viathe serial bus the reclaim time starts and auto-reclosing is inhibited. Before the auto-recloseprogram opens or closes the circuit breaker theinterlocking program is checked and if the op-eration is enabled it is executed.
For double busbar systems with two circuitbreakers (duplex systems) the auto-reclose pro-gram includes a so called duplex logic. Theduplex logic operates according to the followingrules:
- The auto-reclose program always gives anopen command to both circuit breakers
- The circuit breaker is considered to be closedif one of the breakers is closed, i.e. the closedstatus data is an or-function of the circuitbreaker closed data
- The circuit breaker that was the last one to beclosed will be closed by the auto-reclose pro-gram
Each auto-reclose cycle has four counters. Onecounter counts the total number of cycles. Theother three counters are used for counting thecycles started by the start initiating signals AR1,AR2 and AR3. The counter value is incre-mented by one when the circuit breaker isclosed.
Five event codes have been reserved for eachauto-reclose cycle. One event code indicatesthat an auto-reclose cycle is in progress andanother that a close pulse has been given. Theother three codes indicate that an auto-reclosecycle is in progress and that it has been started byAR1, AR2 or AR3. The event "AR in progress"event is generated when the starting time of anAR cycle has elapsed.
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The control module also gives a separate eventcode if a final trip has been performed, either bythe protection relay modules or the auto-reclosefunction. Interruption of an auto-reclose cycle,too, generates an event code.
In addition to the event codes the auto-reclosefunction activates output data O1…O5 or O10during an auto-reclose sequence.
Example19:Setting of an auto-reclose sequence.
- Auto-reclosing is initiated by starting signalsof the protection relay modules.
- Signal AR1 inhibits cycle 1 and 2 when acti-vated
- Signal AR2 initiates cycle 1 when activated.Starting time 0.10 s
- Signal AR3 initiates cycle 1 and cycle 2 whenactivated. The starting time for both cycles is0.50 s
- Dead time of cycle 1 is 0.3 s- Dead time of cycle 2 is 120 s- Reclaim time 5 s.
As a default setting the auto-reclose functionshave been set out of operation (S78). Cycles 1and 2 can be made operative just by givingparameter S78 the value 1. Then both cycles areinitiated by the signals AR2 and AR3 and inhib-ited by signal AR1. Cycles 3…5 are not initiatedby signals AR1…AR3.
Only parameters relating to auto-reclose cycles1 and 2 are to be set. The default values for theparameters of the other cycles may be keptunchanged.
>99WS78:1:XX; Take AR into use
>99WS21:0:XX; Inhibit cycle 1 if AR1 is activated
>99WS22:1:XX; Initiate cycle 1 if AR2 is activated
>99WS23:1:XX; Initiate cycle 1 if AR3 is activated
>99WS24:0.10:XX; Set AR2 starting time for cycle 1 at 0.1 s
>99WS25:0.50:XX; Set AR3 starting time for cycle 1 at 0.5 s
>99WS26:0.3:XX; Set cycle 1 dead time at 0.3 s
>99WS31:0:XX; Inhibit cycle 2 if AR1 is activated
>99WS32:0:XX; Cycle 2 not initiated if AR2 is activated
>99WS33:1:XX; Initiate cycle 3 if AR3 is activated
>99WS35:0.50:XX; Set AR3 starting time for cycle 2 at 0.5 s
>99WS36:120.00:XX; Set cycle 2 dead time at 120 s
>99WS77:5.0:XX; Set reclaim time at 5 s
>99WV151:1:XX; Store set parameters
Note! It is not necessary to set parameter S34,AR2 starting time for cycle 2, because the AR2signal does not initiate cycle 2.
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Event codes Over the SPA bus a substation level data com-municator can read event data, such as statuschanges, transmitted by the control moduleSPTO 6D3. The events are represented, forinstance, by the event codes E1…E11. Thecontrol module transmits its event data in theformat:
<time> <channel number><event code>
wheretime = ss.sss (seconds and parts of a second)channel number = 0...17event code = E1...E54, depending on the channel
Most of the event codes and the correspondingevents can be included in or excluded from theevent reporting by writing an event mask(V155…V158) to the control module. Theevent mask is a binary number coded to adecimal number. Each channel (0...17) has itsown event mask.
Each event code is represented by a number. Anevent mask is formed by multiplying the corre-sponding number by either 1, which means thatevent is included in the reporting, or 0, whichmeans that event is not included in the reportingand, finally, adding up the results of the multi-plications.
Example 20: Calculation of an event mask value.
Channel Event Event Number Event Resultcode repre- factor of multi-
senting plicationthe event
2 E1 Change in status: xx ->10 (open) 1 x 1 = 12 E2 Change in status: xx ->01 (close) 2 x 1 = 22 E3 Change in status: xx ->11 (undefined) 4 x 0 = 02 E4 Change in status: xx ->00 (undefined) 8 x 1 = 82 E5 OPEN output activated 16 x 1 = 162 E6 OPEN output reset 32 x 0 = 02 E7 CLOSE output activated 64 x 1 = 642 E8 CLOSE output reset 128 x 0 = 02 E9 Output activation inhibited 256 x 1 = 2562 E10 Failed to open or close 512 x 0 = 02 E11 Attempt to activate an output 1024 x 0 = 0
Event mask V155 for channel 2 347
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The event masks V155…V157 of channel 0may have a value within the range 0…1023 andthe event mask V158 of channel 0 within therange 0…2047.
The event mask V155 of channels 8…17 mayhave a value within the range 0…15 and theevent mask of channels 1…7 within the range0…2047. The default values are shown in thenext table.
Channels 1...17 have a setting S20, which ena-bles or inhibits the event reporting of the con-cerned channel. The default value is 0, whichmeans that event reporting is allowed accordingto the event mask.
The settings S10...S13 for channels 1...7 andthe settings S10 and S11 for channels 8…17define the event delays. The event delays areused to filter out unwanted events when statusdata is changing. An event code is generatedonly if the status data is stable for a longer timethan the corresponding event delay, e.g. theevent code E4 "change in status: xx -> 00" can befiltered out, when the status of an object ischanging from open to close or vice versa. Thetime marking of a delayed event is the actualevent time plus the delay time. The capacity ofthe event register is 100 events.
The control module has the following eventcodes:
Channel Code Event Number Default valuerepresenting of the eventthe event factor
0 E1 Key switch in position LOCAL 1 10 E2 Key switch in position REMOTE 2 10 E3 Output test switch (SG1/1) ON 4 00 E4 Output test switch (SG1/1) OFF 8 00 E5 Auto-reclosing ON 16 00 E6 Auto-reclosing OFF 32 00 E7 Auto-reclose interrupted 64 10 E8 AR interrupted by open command 128 00 E9 AR interrupted by ARINH input
(external, variable S79) 256 00 E10 Close or open command by AR failed 512 0
V155 = 67
0 E11 AR cycle 1 in progress 1 10 E12 CB closed by AR cycle 1 2 10 E13 Cycle 1 initiated by signal AR1 in progress 4 00 E14 Cycle 1 initiated by signal AR2 in progress 8 00 E15 Cycle 1 initiated by signal AR3 in progress 16 00 E16 Cycle 2 in progress 32 10 E17 CB closed by AR cycle 2 64 10 E18 Cycle 2 initiated by signal AR1 in progress 128 00 E19 Cycle 2 initiated by signal AR2 in progress 256 00 E20 Cycle 2 initiated by signal AR3 in progress 512 0
V156 = 99
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Channel Code Event Number Default valuerepresenting of the eventthe event factor
0 E21 AR cycle 3 in progress 1 10 E22 CB closed by AR cycle 3 2 10 E23 Cycle 3 initiated by signal AR1 in progress 4 00 E24 Cycle 3 initiated by signal AR2 in progress 8 00 E25 Cycle 3 initiated by signal AR3 in progress 16 00 E26 Cycle 4 in progress 32 10 E27 CB closed by AR cycle 4 64 10 E28 Cycle 4 initiated by signal AR1 in progress 128 00 E29 Cycle 4 initiated by signal AR2 in progress 256 00 E30 Cycle 4 initiated by signal AR3 in progress 512 0
V157 = 99
0 E31 AR cycle 5 in progress 1 10 E32 CB closed by AR cycle 5 2 10 E33 Cycle 5 initiated by signal AR1 in progress 4 00 E34 Cycle 5 initiated by signal AR2 in progress 8 00 E35 Cycle 5 initiated by signal AR3 in progress 16 00 E36 Final trip by AR via signal AR1 32 00 E37 Final trip by AR via signal AR2 64 00 E38 Final trip by AR via signal AR3 128 00 E39 Final trip by signal AR1 256 10 E40 Final trip by signal AR2 512 10 E41 Final trip by signal AR3 1024 1
V158 = 1795
1…7 E1 Change in status; xx -> 10 (open) 1 11…7 E2 Change in status; xx -> 01 (closed) 2 11…7 E3 Change in status; xx ->11 (undefined) 4 01…7 E4 Change in status; xx ->00 (undefined) 8 01…7 E5 OPEN output activated 1) 16 11…7 E6 OPEN output reset 32 01…7 E7 CLOSE output activated 64 11…7 E8 CLOSE output reset 128 01…7 E9 Output activation inhibited 2) 256 11…7 E10 Failed to open or close 3) 512 11…7 E11 Attempt to activate an output without
open/close selection 4) 1024 1
V155 = 1875
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Channel Code Event Number Default valuerepresenting of the eventthe event factor
8…17 E1 Input channel activated 1 18…17 E2 Input channel reset 2 18…17 E3 SIGNAL5 or 6 output activated 4 08…17 E4 SIGNAL5 or 6 output reset 8 0
V155 = 3
0 E50 Restarting * -0 E51 Overflow of event register * -0 E52 Temporary disturbance in data -
communication0 E53 No response from the module * -
over the data communication0 E54 The module responds again * -
over the data communication
0 not included in the event reporting1 included in the event reporting* no code number- cannot be set
In the SPACOM system the event codesE52…E54 are generated by the substation levelcontrol data communicator.
1) No event codes E5…E8 are obtained if theoutputs are controlled by the Direct OutputControl function.
2) Event E9, output activation inhibited, isobtained if the operation is inhibited by theinterlocking program or by an input channel8…17.
3) Event E10, open or close command failed, isobtained if the status of the controlled objectdoes not change within the time of theoutput pulse.
4) Event E11, attempt to activate an outputwithout open/close selection is obtained whena secured control is made in a situation wherethe state of alert has not been defined.
If all the parameters are set at the same time, youshould follow the instructions below whenchanging between setting and run mode andwhen storing the parameters.
The default values of the parameters relating tointerlocking and configuration are:
S100 = 0Freely selectable configuration and inter-locking system
S198 = 0The interlocking program is in setting mode
S199 = 1Interlockings are in use
The following example shows the setting proce-dure.
Example 21:To select a user-specific configuration and inter-locking system.
>99WS198:0:XX; Change into setting mode
>99WS100:0:XX; Change into freely selectable mode
>99WS101:…; Configuration commands
:>99WM200:…
; Interlocking program:>99WS198:1:XX
; Change into run mode:Other parameters:>99WV151:1:XX
; Store set parametres
Quick referencefor setting
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memory (V-data), and some other data. Fur-ther, part of the data can be altered by com-mands given over the SPA bus.
Data Channel Code Data Values direction
Current on phase L1 (x In) 0 I1 R 0.00…1.50 x In (opt. 1, 2 or 3)Current on phase L2 (x In) 0 I2 R 0.00…1.50 x In (opt. 1, 2 or 3)Current on phase L3 (x In) 0 I3 R 0.00…1.50 x In (opt. 1, 2 or 3)Voltage U12 (x Un) 0 I4 R 0.00…1.50 x Un (opt. 1, 2 or 3)Voltage U23 (x Un) 0 I5 R 0.00…1.50 x Un (opt. 1, 2 or 3)Voltage U31 (x Un) 0 I6 R 0.00…1.50 x Un (opt. 1, 2 or 3)Active power (bits) 0 I7 R -1023…1023 bits (opt. 1, 2 or 3)Reactive power (bits) 0 I8 R -1023…1023 bits (opt. 1, 2 or 3)
Current on phase L1 (A) 0 I11 R 0…9999 A (opt. 1, 2 or 3)Current on phase L2 (A) 0 I12 R 0…9999 A (opt. 1, 2 or 3)Current on phase L3 (A) 0 I13 R 0…9999 A (opt. 1, 2 or 3)Voltage U12 (kV) 0 I14 R 0.00…999.99 kV (opt. 1, 2 or 3)Voltage U23 (kV) 0 I15 R 0.00…999.99 kV (opt. 1, 2 or 3)Voltage U31 (kV) 0 I16 R 0.00…999.99 kV (opt. 1, 2 or 3)
AR start signal AR1 0 I21 R 0=not active1=active
AR start signal AR2 0 I22 R 0=not active1=active
AR start signal AR3 0 I23 R 0=not active1=active
Internal ARINH signal 0 I24 R 0=not active1=active
Object status 1…7 I1 R 0=undefined (inputs 00)1=closed2=open3=undefined (inputs 11)
Closed status of an object 1…7 I2 R 0=not closed1=closed
Open status of an object 1…7 I3 R 0=not open1=open
Status of inputs 8…17 8…17 I1 R 0=not active1=active
AR cycle1 in progress 0 O1 R 0=not in progress1=in progress
AR cycle 2 in progress 0 O2 R 0=not in progress1=in progress
AR cycle 3 in progress 0 O3 R 0=not in progress1=in progress
AR cycle 4 in progress 0 O4 R 0=not in progress1=in progress
AR cycle 5 in progress 0 O5 R 0=not in progress1=in progress
AR in progress 0 O10 R 0=AR not in progress1=AR cycle 1 in progress2=AR cycle 2 in progress3=AR cycle 3 in progress4=AR cycle 4 in progress5=AR cycle 5 in progress
Serial communica-tion parameters(modified 96-12)
Apart from the event codes the substation leveldata communicator is able to read, over the SPAbus, all input data (I-data) of the module, settingvalues (S-data), information recorded in the
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Data Channel Code Data Values direction
Direct output control 1…7 O1 W 0=open1=close
Open select 1…7 V1 RW 0=open(secured operation) 1=closedClose select 1…7 V2 RW 0=open(secured operation) 1=closedExecute selected open/closeoperation 1…7 V3 W 1=execute selected operationCancel selected open/closeoperation 1…7 V4 W 1=cancel selected operationOpen pulse length 1…7 V5 RW(e) 0.1…100.0 sClose pulse length 1…7 V6 RW(e) 0.1…100.0 s
Execute selected open/closeoperation (common addr. 900) 0 V251 W 1=execute all selected operationsCancel selected open/closeoperation (common addr. 900) 0 V252 W 1=cancel all selected operations
kWh value per pulse 0 S3 RW(e) 0.01…1000 kWh per pulsePosition of switch SG1/2 0 S5 R 0=AR in use (SG1/2=0)
1=AR out of use (SG1/2=1)Position of switch SG1/1 0 S6 R 0=operation position ( SG1/1=0)
1=interlockings off (SG1/1=1)Object indication mode 0 S7 RW(e) 0=continuous display
1=automatic switch offafter 10 min.
Display indication mode 0 S8 RW(e) 0=continuous display1=automatic switch off
after 5 min.Scaling of current measurement 0 S9 RW(e) 0.00…10000.00 (opt. 1, 2 or 3)Scaling of voltage measurement 0 S10 RW(e) 0.00…10000.00 (opt. 1, 2 or 3)Low limit for mA signal ofactive power 0 S12 RW(e) -20…+20 mA (opt. 1)High limit for mA signal ofactive power 0 S13 RW(e) -20…+20 mA (opt. 1)Low limit for mA signal ofreact. power 0 S14 RW(e) -20…+20 mA (opt. 1)High limit for mA signal ofreact. power 0 S15 RW(e) -20…+20 mA (opt. 1)Active power correspondingto mA signal at low limit 0 S16 RW(e) -999.99…+999.99 MW (opt. 1)Active power correspondingto mA signal at high limit 0 S17 RW(e) -999.99…+999.99 MW (opt. 1)Reactive power correspondingto mA signal at low limit 0 S18 RW(e) -999.99…+999.99 Mvar (opt. 1)Reactive power correspondingto mA signal at high limit 0 S19 RW(e) -999.99…+999.99 Mvar (opt. 1)
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Data Channel Code Data Values direction
AR cycle 1 initiated by signal AR1 0 S21 RW(e) 0=AR cycle 1 inhibited bysignal AR1
1=AR cycle 1 started bysignal AR1
AR cycle 1 initiated by signal AR2 0 S22 RW(e) 0=AR cycle 1 not started bysignal AR2
1=AR cycle 1 started bysignal AR2
AR cycle 1 initiated by signal AR3 0 S23 RW(e) 0=AR cycle 1 not started bysignal AR3
1=AR cycle 1 started bysignal AR3
Start time of AR cycle 1 0 S24 RW(e) 0.00 ... 5.00 sinitiated by AR2Start time of AR cycle 1 0 S25 RW(e) 0.00 ... 5.00 sinitiated by AR3Dead time of AR cycle 1 0 S26 RW(e) 0.2 ... 300 s
AR cycle 2 initiated by signal AR1 0 S31 RW(e) 0=AR cycle 2 inhibited bysignal AR1
1=AR cycle 2 started bysignal AR1
AR cycle 2 initiated by signal AR2 0 S32 RW(e) 0=AR cycle 2 not started bysignal AR2
1=AR cycle 2 started bysignal AR2
AR cycle 2 initiated by signal AR3 0 S33 RW(e) 0=AR cycle 2 not started bysignal AR3
1=AR cycle 2 started bysignal AR3
Starting time of AR cycle 2 0 S34 RW(e) 0.00 ... 5.00 sinitiated by AR2Starting time of AR cycle 2 0 S35 RW(e) 0.00 ... 5.00 sinitiated by AR3Dead time of AR cycle 2 0 S36 RW(e) 0.2 ... 300.0 s
AR cycle 3 initiated by signal AR1 0 S41 RW(e) 0=AR cycle 3 inhibited bysignal AR1
1=AR cycle 3 started bysignal AR1
AR cycle 3 initiated by signal AR2 0 S42 RW(e) 0=AR cycle 3 not started bysignal AR2
1=AR cycle 3 started bysignal AR2
AR cycle 3 initiated by signal AR3 0 S43 RW(e) 0=AR cycle 3 not started bysignal AR3
1=AR cycle 3 started bysignal AR3
Starting time of AR cycle 3 0 S44 RW(e) 0.00 ... 5.00 sinitiated by AR2Starting time of AR cycle 3 0 S45 RW(e) 0.00 ... 5.00 sinitiated by AR3Dead time of AR cycle 3 0 S46 RW(e) 0.2 ... 300.0 s
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Data Channel Code Data Values direction
AR cycle 4 initiated by signal AR1 0 S51 RW(e) 0=AR cycle 4 inhibited bysignal AR1
1=AR cycle 4 started bysignal AR1
AR cycle 4 initiated by signal AR2 0 S52 RW(e) 0=AR cycle 4 not started bysignal AR2
1=AR cycle 4 started bysignal AR2
AR cycle 4 initiated by signal AR3 0 S53 RW(e) 0=AR cycle 4 not started bysignal AR3
1=AR cycle 4 started bysignal AR3
Starting time of AR cycle 4 0 S54 RW(e) 0.00 ... 5.00 sinitiated by AR2Starting time of AR cycle 4 0 S55 RW(e) 0.00 ... 5.00 sinitiated by AR3Dead time of AR cycle 4 0 S56 RW(e) 0.2 ... 300.0 s
AR cycle 5 initiated by signal AR1 0 S61 RW(e) 0=AR cycle 5 inhibited bysignal AR1
1=AR cycle 5 started bysignal AR1
AR cycle 5 initiated by signal AR2 0 S62 RW(e) 0=AR cycle 5 not started bysignal AR2
1=AR cycle 5 started bysignal AR2
AR cycle 5 initiated by signal AR3 0 S63 RW(e) 0=AR cycle 5 not started bysignal AR3
1=AR cycle 5 started bysignal AR3
Starting time of AR cycle 5 0 S64 RW(e) 0.00 ... 5.00 sinitiated by AR2Starting time of AR cycle 5 0 S65 RW(e) 0.00 ... 5.00 sintitated by AR3AR 5 dead time 0 S66 RW(e) 0.2 ... 300.0 s
Final AR trip via signal AR1 0 S71 RW(e) 0=no final trip by AR fromsignal AR1
1=final trip by AR fromsignal AR1
Final AR trip via signal AR2 0 S72 RW(e) 0=no final trip by AR fromsignal AR2
1=final trip by AR fromsignal AR2
Final AR trip via signal AR3 0 S73 RW(e) 0=no final trip by AR fromsignal AR3
1=final trip by AR fromsignal AR3
Final trip time via AR1 0 S74 RW(e) 0.0 ... 300.0 sFinal trip time via AR2 0 S75 RW(e) 0.0 ... 300.0 sFinal trip time via AR3 0 S76 RW(e) 0.0 ... 300.0 sAR reclaim time 0 S77 RW(e) 0.2 ... 300.0 sAuto-reclosure ON/OFF 0 S78 RW(e) 0=AR out of use
1=AR in useAR interruption 0 S79 W 1=interruption
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Data Channel Code Data Values direction
Contact alarm "AR in progress" 0 S80 RW(e) 0=no contact alarm40=alarm via SIGNAL5 output41=alarm via SIGNAL6 output
Contact alarm for final trip by AR 0 S81 RW(e) 0=no contact alarminitiated by signal AR1 40=alarm via SIGNAL5 output
41=alarm via SIGNAL6 outputContact alarm for final trip by AR 0 S82 RW(e) 0=no contact alarminitiated by signal AR2 40=alarm via SIGNAL5 output
41=alarm via SIGNAL6 outputContact alarm for final trip by AR 0 S83 RW(e) 0=no contact alarminitiated by signal AR3 40=alarm via SIGNAL5 output
41=alarm via SIGNAL6 output
Measuring module 0 S90 RW(e) 0=no optional module1=measuring module 1,
SPTM 8A12=measuring module 2 or 3,
SPTM 6A2 or SPTM 6A3Power measurement 0 S91 RW(e) 0=no power measurement
1=power is measuredEnergy measurement 0 S92 RW(e) 0=no energy measurement
1=energy is measured
Configuration and interlocking 0 S100 RW(e) 0=freely selectable configu-ration and interlockingprogram
1… =for future use
Configuration of objects 0 S101 RW(e) - value 1;(format; value 1, value 2, : 0=indicator not usedinput No, output code, value 3) S116 1=indicator used
- value 2;0=vertical LEDs indicate open
status1=vertical LEDs indicate closed
status- input No;1…7=input number 1…7- output code;0=not controlled object20…31=output codes 20…31- value 3;0=object other than CB1=object is a CB
Selection of setting/operation mode 0 S198 RW(e) 0=setting mode1=run mode
Interlocking selection 0 S199 RW(e) 0=no interlockings1=interlockings in use2=for future use
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Data Channel Code Data Values direction
Interlocking and Direct Output 0 M200 RW(e) commands =Control program : LOAD, LOADN(format; operation, operand) M300 AND, ANDN
OR, ORNOUTEND
interlocking variables =status closed (1…7) oractive (8…17)status undefined (101…107)status open (201…207)Output code (20…31)Special register (60, 61)L/R key switch positioninformation (62)Memory No. (70…89)
variables for Direct OutputControl =
status closed (1…7) oractive (8…17)status undefined (101…107)status open (201…207)Output code (40 or 41,220…231)L/R key switch positioninformation (62)Memory No. (70…89)
Event delay; —>10 (open) 1…7 S10 RW(e) 0.0, or 0.1…60.0 sEvent delay; —>01 (close) 1…7 S11 RW(e) 0.0, or 0.1…60.0 sEvent delay; —>11 (undefined) 1…7 S12 RW(e) 0.0, or 0.1…60.0 sEvent delay; —>00 (undefined) 1…7 S13 RW(e) 0.0, or 0.1…60.0 s
Use of input 10 10 S1 RW(e) 0=general mode1=ARINH -input
Use of input 11 11 S1 RW(e) 0=general mode1=pulse counter without
indication2=pulse counter with indication
Use of input 14 14 S1 RW(e) 0=general mode1=external AR initiation,
connected to AR12=external AR initiation,
connected to AR23=external AR initiation,
connected to AR3
Operation principle of inputs 8…17 S2 RW(e) 0=active at low state8…17 1=active at high stateSignal output activation via 8…17 S3 RW(e) 0=no SIGNAL outputinputs 8…17 40=SIGNAL5 output is activated
41=SIGNAL6 output is activated
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Data Channel Code Data Values direction
Operation of OPEN and CLOSE 8…17 S4 RW(e) 0=no activation or inhibitoutputs via inputs 8…17 20 = activate OPEN1 output
21 = activate CLOSE1 output22 = activate OPEN2 output23 = activate CLOSE2 output24 = activate OPEN3 output25 = activate CLOSE3 output26 = activate OPEN4 output27 = activate CLOSE4 output28 = activate OPEN5 output29 = activate CLOSE5 output30 = activate OPEN6 output31 = activate CLOSE6 output120 = inhibit OPEN1 output121 = inhibit CLOSE1 output122 = inhibit OPEN2 output123 = inhibit CLOSE2 output124 = inhibit OPEN3 output125 = inhibit CLOSE3 output126 = inhibit OPEN4 output127 = inhibit CLOSE4 output128 = inhibit OPEN5 output129 = inhibit CLOSE5 output130 = inhibit OPEN6 output131 = inhibit CLOSE6 output
Memory controlled function of 8...13 S5 RW(e) 0=not memory controlledthe indicators of the binary inputs 1=memory controlled
Event delay; —>activated 8…17 S10 RW(e) 0.0, or 0.1…60.0 sEvent delay; —>reset 8…17 S11 RW(e) 0.0, or 0.1…60.0 sEvent reporting 1…17 S20 RW(e) 0=event reporting enabled
1=event reporting inhibited
Active power (MW) 0 V3 R -999.99…+999.99 MWReactive power (Mvar) 0 V4 R -999.99…+999.99 MvarActive energy (kWh) 0 V5 RW 0…999999999 kWhPosition of local/remote key switch 0 V6 R 0=local
1=remoteActive energy (kWh) 0 V8 RW 0…999 kWhActive energy (MWh) 0 V9 RW 0…999 MWhActive energy (GWh) 0 V10 RW 0…999 GWhActive energy; reversed (kWh) 0 V11 RW 0…999 kWhActive energy; reversed (MWh) 0 V12 RW 0…999 MWhActive energy; reversed (GWh) 0 V13 RW 0…999 GWhReactive energy (kvarh) 0 V14 RW 0…999 kvarhReactive energy (Mvarh) 0 V15 RW 0…999 MvarhReactive energy (Gvarh) 0 V16 RW 0…999 GvarhReactive energy; reversed (kvarh) 0 V17 RW 0…999 kvarhReactive energy; reversed (Mvarh) 0 V18 RW 0…999 MvarhReactive energy; reversed (Gvarh) 0 V19 RW 0…999 GvarhTotal number of AR cycles 1 0 V20 R 0…999No. of AR cycles 1 initiated by AR1 0 V21 RW 0…999No. of AR cycles 1 initiated by AR2 0 V22 RW 0…999No. of AR cycles 1 initiated by AR3 0 V23 RW 0…999Total number of AR cycles 2 0 V24 R 0…999
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Data Channel Code Data Values direction
No. of AR cycles 2 initiated by AR1 0 V25 RW 0…999No. of AR cycles 2 initiated by AR2 0 V26 RW 0…999No. of AR cycles 2 initiated by AR3 0 V27 RW 0…999Total number of AR cycles 3 0 V28 R 0…999No. of AR cycles 3 initiated by AR1 0 V29 RW 0…999No. of AR cycles 3 initiated by AR2 0 V30 RW 0…999No. of AR cycles 3 initiated by AR3 0 V31 RW 0…999Total number of AR cycles 4 0 V32 R 0…999No. of AR cycles 4 initiated by AR1 0 V33 RW 0…999No. of AR cycles 4 initiated by AR2 0 V34 RW 0…999No. of AR cycles 4 initiated by AR3 0 V35 RW 0…999Total number of AR cycles 5 0 V36 R 0…999No. of AR cycles 5 initiated by AR1 0 V37 RW 0…999No. of AR cycles 5 initiated by AR2 0 V38 RW 0…999No. of AR cycles 5 initiated by AR3 0 V39 RW 0…999
Store data into EEPROM 0 V151 W 1=storing, takes about 5 sLoad default values after EEPROM 0 V152 RW(e) 0=enable loading of default valuesfailure 1=inhibit loading of default valuesEvent mask 0 V155 RW(e) 0…1023Event mask 0 V156 RW(e) 0…1023Event mask 0 V157 RW(e) 0…1023Event mask 0 V158 RW(e) 0…2047Event mask 1…7 V155 RW(e) 0…2047Event mask 8…17 V155 RW(e) 0…15
Activation of self-supervision 0 V165 W 0=resetoutput 1=activateInternal fault code 0 V169 R Fault code
Data communication address 0 V200 RW(e) 1…254Data transfer rate 0 V201 RW(e) 4800, 9600Program version symbol 0 V205 R E.g. 055 M
Type designation of the module 0 F R SPTO 6D3Reading of event register 0 L R Time, channel number and
event codeRe-reading of event register 0 B R Time, channel number and
event codeReading of module status 0 C R 0=normal stateinformation 1=module been subject to
automatic reset2=overflow of event register3=events 1 and 2 together
Resetting of module status 0 C W 0=resettinginformationTime reading and setting 0 T RW 0.000…59.999 s
R = Data which can be read from the moduleW = Data which can be written to the module(e) = Data which has to be stored in EEPROM (V151) after it has been changed
The event register can be read by the L com-mand only once. Should a fault occur e.g. in thedata transfer, it is possible, by using the Bcommand, to re-read the contents of the eventregister. When required, the B command can berepeated.
The data transfer codes L, B, C and T have beenreserved for event data transfer between thecontrol module and the station level data com-municator.
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push-buttons have to be kept depressed until thedisplay is switched on.
The following table lists the default values of theparameters.
Data Channel Code Default value
Open pulse length 1…7 V5 0.1 s for CB and 10.0 sfor other than CB
Close pulse length 1…7 V6 0.1 s for CB and 10.0 sfor other than CB
kWh value per pulse 0 S3 1 kWh per pulseObject indication mode 0 S7 0=continuous displayDisplay indication mode 0 S8 0=continuous displayScaling of current measurement 0 S9 200.00Scaling of voltage measurement 0 S10 210.00Low limit of mA signal of active power 0 S12 +4 mAHigh limit of mA signal of active power 0 S13 +20 mALow limit of mA signal of react. power 0 S14 +4 mAHigh limit of mA signal of react. power 0 S15 +20 mAActive power corresponding to themA signal at low limit 0 S16 +0.00Active power corresponding to themA signal at high limit 0 S17 +999.99Reactive power corresponding tothe mA signal at low limit 0 S18 +0.00Reactive power corresponding tothe mA-signal at high limit 0 S19 +999.99
AR cycle 1 initiated by signal AR1 0 S21 0=AR cycle 1 inhibited bysignal AR1
AR cycle 1 initiated by signal AR2 0 S22 1=AR cycle 1 started bysignal AR2
AR cycle 1 initiated by signal AR3 0 S23 1=AR cycle 1 started bysignal AR3
Starting time of AR cycle 1 initiated by AR2 0 S24 0.00 sStarting time of AR cycle 1 initiated by AR3 0 S25 0.00 sDead time of AR cycle 1 0 S26 0.3 s
AR cycle 2 initiated by signal AR1 0 S31 0=AR cycle 2 inhibited bysignal AR1
AR cycle 2 initiated by signal AR2 0 S32 1=AR cycle 2 started bysignal AR2
AR cycle 2 initiated by signal AR3 0 S33 1=AR cycle 2 started bysignal AR3
Starting time of AR cycle 2 initiated by AR2 0 S34 0.00 sStarting time of AR cycle 2 initiated by AR3 0 S35 0.00 sDead time of AR cycle 2 0 S36 120.0 s
AR cycle 3, initiated by signal AR1 0 S41 0=AR cycle 3 inhibited bysignal AR1
AR cycle 3, initiated by signal AR2 0 S42 0=AR cycle 3 not startedby signal AR2
AR cycle 3, initiated by signal AR3 0 S43 0=AR cycle 3 not startedby signal AR3
Starting time of AR cycle 3 initiated by AR2 0 S44 0.00 sStarting time of AR cycle 3 initiated by AR3 0 S45 0.00 sDead time of AR cycle 3 0 S46 120.0 s
Default valuesof the parameters(modified 96-12)
The parameters which are stored in theEEPROM are given default values after factorytesting. All the default values are copied fromthe PROM to the RAM by pressing the STEPand ∩ push buttons simultaneously while theauxiliary power supply is switched on. The
43
Data Channel Code Default value
AR cycle 4 initiated by signal AR1 0 S51 0=AR cycle 4 inhibited bysignal AR1
AR cycle 4 initiated by signal AR2 0 S52 0=AR cycle 4 not startedby signal AR2
AR cycle 4 initiated by signal AR3 0 S53 0=AR cycle 4 not startedby signal AR3
Starting time of AR cycle 4 initiated by AR2 0 S54 0.00 sStarting time of AR cycle 4 initiated by AR3 0 S55 0.00 sDead time of AR cycle 4 0 S56 120.0 s
AR cycle 5 initiated by signal AR1 0 S61 0=AR cycle 5 inhibited bysignal AR1
AR cycle 5 initiated by signal AR2 0 S62 0=AR cycle 5 not startedby signal AR2
AR cycle 5 initiated by signal AR3 0 S63 0=AR cycle 5 not startedby signal AR3
Starting time of AR cycle 5 initiated by AR2 0 S64 0.00 sStarting time of AR cycle 5 initiated by AR3 0 S65 0.00 sDead time of AR cycle 5 0 S66 120.0 s
Final trip by AR initiated by signal AR1 0 S71 0=no final trip by AR,initiated by signal AR1
Final trip by AR initiated by signal AR2 0 S72 0=no final trip by AR,initiated by signal AR2
Final trip by AR initiated by signal AR3 0 S73 0=no final trip by AR,initiated by signal AR3
Final trip time via AR1 0 S74 300.0 sFinal trip time via AR2 0 S75 300.0 sFinal trip time via AR3 0 S76 300.0 sAR reclaim time 0 S77 5.0 sAuto-reclose function ON/OFF 0 S78 0=AR out of use
AR due contact alarm 0 S80 0=no contact alarmContact alarm for final trip by AR 0 S81 0=no contact alarminitiated by signal AR1Contact alarm for final trip by AR 0 S82 0=no contact alarminitiated by signal AR2Contact alarm for final trip by AR 0 S83 0=no contact alarminitiated by signal AR3
Measuring module 0 S90 0=no optional measuringmodule
Power measurement 0 S91 0=no power measurementEnergy measurement 0 S92 0=no energy
measurement
Configuration and interlocking 0 S100 0=freely selectableconfiguration andinterlocking program
Configuration of objects 0 S101 0,0,0,0,0=indicator not: usedS116
44
Data Channel Code Default value
Setting/run mode selection 0 S198 0=setting modeInterlocking selection 0 S199 1= interlockings in use
Interlocking program 0 M200 END:M300
Event delay; —>10 (open) 1…7 S10 0.0 sEvent delay; —>01 (close) 1…7 S11 0.0 sEvent delay; —>11 1…7 S12 0.2 s for CB and
10.0 s for non CBEvent delay; —>00 1…7 S13 0.2 s for CB and
10.0 s for non CB
Use of input 10 10 S1 0=general modeUse of input 11 11 S1 0=general modeUse of input 14 14 S1 0=general mode
Operation direction of inputs 8…17 8…17 S2 1=active at high stateSignal output activation by inputs 8…17 8…17 S3 0=no signal outputOperation of OPEN and CLOSE 8…17 S4 0=no activation or inhibitoutputs by inputs 8…17Memory controlled function of the 8...13 S5 0=not memory controlledindicators of the binary inputs
Event delay; —>activated 8…17 S10 0.0 sEvent delay; —>reset 8…17 S11 0.0 s
Event reporting 1…17 S20 0=event reporting enabled
Load default values after EEPROM failure 0 V152 1=inhibited
Event mask 0 V155 67Event mask 0 V156 99Event mask 0 V157 99Event mask 0 V158 1795
Event mask 1…7 V155 1875Event mask 8…17 V155 3
Data communication address 0 V200 99Data transfer rate 0 V201 9600
45
Control functions
- status indication for 7 objects, e.g. circuit breakers, disconnectors, earthing switches- configuration freely selectable by the user- remote or local control (open and close) for 6 objects- output pulse lenght selectable, range 0.1…100.0 s- 10 binary inputs for reading contact data other than status information- freely selectable feeder oriented interlocking system, the 7 status inputs plus 10 other
binary inputs- the binary input channels can be used to control the OPEN and CLOSE outputs- two signal outputs, which can be controlled by the binary input channels
Measurements
- one pulse counter input for energy pulse counting, maximum input signal frequency 25 Hz- energy can also be calculated on the basis of the measured power value by using an optional
measuring module- all measured values can be scaled as actual primary values- local display or remote indication of measured values
With optional measuring module SPTM 8A1- measurement of three phase currents and three phase-to-phase voltages, measurement range
0...1,5 x In and 0...1,5 x Un- accuracy of current and voltage measurement better than ± 1 % of rated value- two mA inputs for measurement of active and reactive power- accuracy of power measurement better than ± 1 % of the maximum value of the measurement
range- mA input range -20 mA…0...20 mA, can be limited by setting
With optional measuring module SPTM 6A2- measurement of three phase currents and three phase-to-phase voltages, measurement range
0...1,5 x In and 0...1,5 x Un- accuracy of current and voltage measurement better than ± 1 % of rated value- measurement of active and reactive power using the current and voltage signals.
The measurement is based on the Aron connection, measurement range 0...1,1 x Pnand 0...1,1 x Qn.
- accuracy of the positive power measurement better than ±2 % of the rated value- accuracy of the negative power measurement better than ±3 % of the rated value
With optional measuring module SPTM 6A3- measurement of three phase currents and three phase-to-phase voltages, measurement range
0...1,5 x In and 0...1,5 x Un- accuracy of current and voltage measurement better than ± 1 % of rated value- measurement of active and reactive power using one internal voltage and two current signals.The
currents and voltage used can be selected with the switches, measurement range 0...1,1 x Pn and0...1,1 x Qn
Auto-reclosing
- 5 consecutive auto-reclose cycles- each cycle can be initiated by three starting or tripping signals- selectable starting time for two starting signals, 0.00…5.00 s- selectable dead time, 0.2…300.0 s- selectable reclaim time, 0.2…300.0 s
Technical data
L1 IRF
>I
L2I L3II
1309
[ ]sk
>t0.5
0.05 1.0
13
2.5
0.5
0.04 1.0
0.5
1.5
2.5
STEP
RESET
SG1
0 1
1234567820
STEP
>>I
nI>I
nI>>I
>>t [ ]s
>I >>I
SPCJ 3C3
B
Indicators for measured values
Setting knob 1with indicator
Stage 1
Setting knob 2with indicator
Setting knob 3with indicator
Stage 2
Setting knob 4with indicator
Self-supervision alarm indicator(Internal Relay Fault)
Display, 1 + 3 digits
Step push-button (STEP)
Programming switches SG1
Switchgroup indicator
Reset push-button (RESET)
Start/operation indicators
General characteristics ofC-type relay modules
User´s manual and Technical description
2
General characteristics ofC-type relay modules
Contents Push-buttons .................................................................................................................. 2Programming switches SG1 ............................................................................................ 2Setting knobs .................................................................................................................. 3Display ........................................................................................................................... 3
Display main menu ................................................................................................... 3Display submenu ....................................................................................................... 4Setting mode ............................................................................................................. 4Example: Operation in setting mode ......................................................................... 5Stored information .................................................................................................... 6Trip-test mode........................................................................................................... 7Example: Trip-test function ...................................................................................... 8
Operation indicators ....................................................................................................... 9Fault codes ...................................................................................................................... 9
Push-buttons The front panel of the relay module containstwo push-buttons. The STEP button is used forstepping forward in the display and the RESETbutton for resetting the red indicators. Addi-tionally, the push-buttons are used for certain
settings, e.g. for setting the address of the relaymodule and the data transfer rate for the serialcommunication when the modules are used inrelay packages provided with this quality. (Seesection Display).
Programmingswitches SG1
Part of the settings and the selections of theoperating characteristics for the relay modulesin various applications are made with the pro-gramming switches SG1 on the front panel. Theindicator of the switchgroup glows when the
checksum of the switchgroup is shown on thedisplay. The checksum can be used for checkingthat the switches are properly set. Fig. 2 gives anexample of calculating the checksum.
Fig. 2. Example of calculating the checksum of programming switchgroup SG1.
When the checksum calculated according to theexample is equal to the checksum indicated onthe display of the relay module, the switches areproperly set.
The function of the programming switches ofthe individual measuring relay modules is speci-fied in the description of the module concerned.
1MRS 750328-MUM EN
Issued 96-02-19Version A (replaces 34 SPC 2 EN1)Checked L-W UApproved TK
Data subject to change without notice
3
Setting knobs Most of the operating values and operatingtimes are set by means of the setting knobs onthe front panel of the relay module. Each settingknob has its own (LED) indicator which glowswhen the concerned setting value is shown onthe display.
If a setting knob is turned while the display isshowing another measured or set value, thevalue being set automatically appears on thedisplay. Simultaneously, the indicator for theconcerned setting starts glowing.
In addition to the settings made with the settingknobs, most modules allow so called remotesetting. This means that the settings made bymeans of the setting knobs of the module andthe checksum of the programming switchgroupmay be altered through an instruction over theserial communication bus. Remote setting ispossible if the password in the register A isknown, and the remote settings are not acti-vated, i.e. parameter V150=0. The circumstancethat the remote settings are activated is shownwith a flashing light of the indicator of thesetting knob, the value of which currently isbeing displayed.
Display The measured and set values as well as the datarecorded are shown on the display of the meas-uring relay module. The display consists of fourdigits. The three digits (green) to the rightindicate the measured, set or stored value andthe digit at the extreme left (red) the number ofthe register. The measured or set value displayedis indicated by a yellow LED indicator. Thenumber of the register glows only when a storedvalue is displayed.
When the auxiliary voltage is connected to ameasuring relay module, the module initiallytests the display by stepping through the digits1...9 for about 15 seconds. When the test isfinished the display turns dark. The testing canbe interrupted by pressing the STEP button.The protective functions of the module areoperative throughout the testing.
Display main menu All the data required during normal operatingconditions are accessible from the main menuwhich presents the measured values in real-time,the normal setting knob settings as well as themost important memorized data.
The data to be shown in the main menu areselected to the display in a certain sequence bymeans of the STEP button. When pressing theSTEP button for about one second, the displaymoves forward in the display sequence. Whenpressing it for about 0.5 seconds, the displaymoves backwards in the display sequence.
From a dark display only forward movement ispossible. When keeping the STEP button de-pressed, the display is continuously moving inforward direction stopping for a while at thedark point.
Unless the display is switched off by stepping tothe dark point, it remains activated for about 5minutes from the last pressing of the STEPbutton and then goes out.
4
Display submenu Less important values and values not very oftenset are displayed in the submenus. The numberof submenus varies with different relay moduletypes. The submenus are presented in the de-scription of the concerned module.
A submenu is entered from the main menu bypressing the RESET button for about one sec-ond. When the button thereafter is released, thered digit (STEP) of the display starts flashing,indicating that one is in a submenu. Going fromone submenu to another or back to the mainmenu follows the same principle as when mov-ing from the main menu display to another; the
display moves forward when pressing the STEPbutton for one second and backward whenpressing it for 0.5 seconds. The return to themain menu has taken place when the red STEPdisplay turns dark.
When entering a submenu from a measured orset value indicated by a LED indicator, theindicator remains glowing and the address win-dow (STEP) of the display starts flashing. Aflashing address window when no LED indica-tor is lit indicates that the submenu of a registerhas been entered.
Fig. 3. Example of the main and submenus for the settings of the overcurrent relay module SPCJ3C3. The settings made with the setting knobs are in the main menu and they are displayed bypressing the STEP button. In addition to the setting knob settings the main menu contains themeasured current values as well as the registers 1…5, as well as 0 and A. The remote settingpercentage and remote setting value are located in the submenus for the settings and are activatedon the display by pressing the RESET button.
Setting mode The registers of the main menu and the submenusalso contain parameters to be set. The settingsare made in the so called setting mode, which isaccessible from the main menu or a submenu bypressing the RESET button, until the digit atthe extreme right starts flashing (about 10 s).The flashing digit is set by means of the STEPbutton. The flashing is moved on from digit todigit by pressing the RESET button.
A set value is stored in the memory by pressingthe push-buttons STEP and RESET simultane-ously. In practice the RESET button must be
pressed slightly in excess of the STEP button.Return from the setting mode to the main menuor submenu is possible by pressing (for about 10s) the RESET button until the green digits onthe display stop flashing. If the module is left inthe setting mode, it will return automatically tothe start condition after about 5 minutes.
The values to be set in the setting mode are forinstance the address code of the relay moduleand the data transfer rate for the serial commu-nication. Further the percentage values for theremote settings can be changed.
5
Example 1: Function in the setting mode. Manual setting ofthe address code of a relay module and the datatransfer rate for the serial communication. Theinitial value for the address code is 146.
a)Press push-button STEP until register address Aappears on the display.
b)Press the RESET button for about 10 s until theright most digit starts flashing.
c)Press the STEP button repeatedly to set the digitto the value desired.
d)Press the RESET button to make the middle ofthe green digits flash.
e)Set the middle address digit by means of theSTEP button.
f)Press the RESET button to make the left mostgreen digit flash.
g)Set the digit by means of the STEP button.
h)Store the set address number in the memory ofthe relay module by pressing the RESET andSTEP button simultaneously. At the momentthe information enters the memory, the threegreen dashes flash in the display, i.e. A—.
i)Leave the setting mode by pressing the RESETbutton for about 10 s, until the display stopsflashing.
j)Then enter submenu 1 of register A by pressingthe RESET button for approx. one second. Theregister address A is then replaced by a flashing1. This submenu is used for setting the datatransfer rate of the serial communication.
k)The data transfer rate for the serial communica-tion is set and stored in the same way as theaddress, see sections b...i, except that the con-tinuously glowing register address has been re-placed by a flashing 1.
l)After storing the data transfer rate for the serialcommunication you may return to the mainmenu of register A by pressing the STEP buttonfor about 0.5 second.
6
Stored information The parameter values measured at the momentwhen a fault occurs are recorded in the registers,in some modules also the setting values. Therecorded data, except for some setting param-eters, are set to zero by pressing the push-buttons STEP and RESET simul-taneously.The data in normal registers are erased if theauxiliary voltage supply to the relay is disrupted,only the set values and the number ofautoreclosings are maintained in the registers ata voltage failure.
The number of the registers varies with differentmodule types. The function of the registers areillustrated in the descriptions of the separaterelay modules. Additionally, the system panelcontains a simplified list of the data recorded bythe various relay modules of the relay assembly.
All C-type relay modules are provided with twogeneral registers: register 0 and register A.
Register 0 contains, in coded form, the informa-tion about e.g. external blocking signals andstatus information for the circuit breaker. Thecodes are explained in the descriptions of therelay modules.
Register A contains the address code of the relaymodule as required by the serial communicationsystem. Example 1 on page 4 shows how theaddress code is altered. Submenu 1 of register Acontains the data transfer rate value expressed inkilobaud for the serial communication.
Submenu 2 of register A contains a bus trafficmonitor for the SPACOM system. If the protec-tive relay, which contains the relay module, islinked to a system including the control datacommunicator and the data communicationsystem is operating, the counter reading of themonitor will be zero. Otherwise the digits 1...255are continuously rolling in the monitor.
Submenu 3 contains the password required forchanging the remote settings. The address code,the data transfer rate for the serial communica-tion and the password can be set manually or viathe serial communication bus. For manual set-ting see example 1.
The start value for the address code and thepassword is 001 and that for the data transferrate 9.6 kilobaud.
7
Trip-test mode Register 0 also allows access to the so calledTrip-test function, which allows the outputsignals of the relay module to be activated one byone. If the auxiliary relay module of the protec-tion assembly is in place, the auxiliary relays willbe included in the testing.
When pressing the RESET button for about 10seconds, the three green digits to the right startflashing to indicate that the relay module is intest position. The indicators of the setting knobsindicate by flashing which output signal can beactivated. The required output function is se-lected by pressing the RESET button for about1 second, until the following LED indicatorstarts flashing.
The indicators of the setting knobs refer to thefollowing output signals:Setting knob 1 SS1 Starting of stage 1Setting knob 2 TS1 Tripping of stage 1Setting knob 3 SS2 Starting of stage 2Setting knob 4 TS2 Tripping of stage 2No indication IRF Self-supervision
The selected starting or tripping is activated bysimultaneous pressing of the push-buttons STEPand RESET. The signal remains activated aslong as the two push-buttons are being pressed.
The self-supervision output is activated by press-ing the STEP button once when no setting knobindicator is flashing. The IRF output is acti-vated in about 5 seconds after pressing of theSTEP button, and resets after that. Simultane-ously, the display returns to the main menu andperforms the initial testing indicated by rollingdigits 0...9 in the display several times.
The signals are selected in the order illustrated infig. 4.
REGISTER 0IRF SS1 TS1 SS2 TS2
STEP STEP+RESET
STEP+RESET
STEP+RESET
STEP+RESET
RESET10 s
RESET1 s
RESET1 s
RESET1 s
RESET1 s
RESET1 s
Fig. 4. Sequence order for selecting the output signals in the Trip-test mode.
If e.g. the indicator of the setting knob 2 (secondfrom the top) is flashing, and the push-buttonsSTEP and RESET are being pressed, the signalTS1 (tripping of stage 1) is activated. Return tothe main menu is possible at any stage of the
Trip-test sequence scheme, by pressing theRESET button for about 10 seconds. If themodule is left in the Trip-test mode, it willreturn automatically after approx. 5 minutes.
8
Example 2: Trip-test function. Forced activation of the out-puts is made as follows:
a)Step forward on the display to register 0.
b)Press the RESET button for about 10 secondsuntil the three green digits to the right and theLED indicator of the uppermost setting knobstart flashing.
c)Press the push-buttons RESET and STEP si-multaneously. Then the starting of stage 1 (e.g.the I>-stage of the overcurrent module SPCJ3C3) is activated and, simultaneously, the indi-cator of the stage starts glowing yellow.
d)Press the RESET button for about 1 seconduntil the indicator of the second setting knobstarts flashing.
e)Press the push-buttons RESET and STEP si-multaneously to activate tripping of stage 1 (e.g.the I>-stage of the overcurrent module SPCJ3C3). The indicator of the concerned stagestarts glowing red.
f)Starting and tripping of the second stage isactivated in the same way as stage 1. The indica-tor of the third or fourth setting starts flashing toindicate that the concerned stage has been acti-vated.
g)To activate the self-supervision output step to-wards the test position, where no indicator isflashing. Press the STEP button once. In about5 seconds the red IRF indicator starts glowingand the IRF output is activated. Shortly thereaf-ter the indicator goes out and the output auto-matically resets. At the same time the moduleleaves the test position.
h)It is possible to leave the trip test mode at anystep of the sequence scheme by pressing theRESET button for about 10 seconds until thethree digits to the right stop flashing.
9
Operationindicators
A measuring relay module is provided with twoseparate operating stages, each of which with itsown yellow/red operation indicator on the lowerpart of the front plate of the relay module.
The operation indicator starts glowing yellowwhen the operating stage starts and red when adelayed tripping operates. The functions of thestart and operation indicators are described indetail in the different protection relay modulemanuals.
Fault codes In addition to the protective functions the relaymodule is provided with a self-supervision sys-tem which continuously supervises the functionof the microprocessor, its program executionand the electronics.
When the self-supervision system has detected apermanent fault in the relay module, the redIRF indicator on the panel starts glowing soonafter the fault was discovered. At the same timethe module puts forward a signal to the self-supervision contact of the relay assembly.
In most fault situations a fault code, indicatingthe nature of the fault, appears on the display ofthe module. The fault code, which consists of ared digit (1) and a three digit green code number,cannot be removed from the display by reset-ting. When a fault occurs, the fault code shouldbe recorded and stated when service is ordered.
L1 IRF
>I
L2I L3II
1309
[ ]sk
>t0.5
0.05 1.0
13
2.5
0.5
0.04 1.0
0.5
1.5
2.5
STEP
RESET
SG1
0 1
1234567820
STEP
>>I
nI>I
nI>>I
>>t [ ]s
>I >>I
SPCJ 3C3
B
SPCJ 3C3Overcurrent relay module
User´s manual and Technical description
2
SPCJ 3C3Overcurrent
relay module
Contents Features .......................................................................................................................... 2Description of operation ................................................................................................. 3Block diagram................................................................................................................. 4Front panel ..................................................................................................................... 5Operation indicators ....................................................................................................... 5Settings ........................................................................................................................... 6Selector switches ............................................................................................................. 7Measured data ................................................................................................................ 9Recorded information ................................................................................................... 10Main menus and submenus of settings and registers ..................................................... 12Time/current characteristics ......................................................................................... 13Technical data .............................................................................................................. 18Event codes ................................................................................................................... 19Remote transfer data ..................................................................................................... 20Fault codes .................................................................................................................... 23
Features Low-set overcurrent stage I> with selectabledefinite time or inverse definite minimum time(IDMT) operation characteristic
High-set current stage I>> with instantaneousoperation or definite time operation character-istic
Both overcurrent stages can be blocked by meansof an external control signals from cooperatingprotection relays
Digital display of measured and set values, re-corded fault values, operation indications andfault messages
Comprehensive serial communication capability
Continuous self-supervision of the electronicsand the software including autodiagnostics
1MRS 750602-MUM EN
Issued 96-12-30Modified 99-12-20Version C (replaces 34 SPCJ 2 EN1)Checked KJApproved GL
Data subject to change without notice
3
The overcurrent relay module SPCJ 3C3 can beused in single-phase, two-phase or three-phaseprotection relays and it contains two overcur-rent stages, i.e. a low-set overcurrent stage I>and a high-set overcurrent stage I>>.
The low-set or high-set overcurrent stage startsif the current on one of the protected phasesexceeds the set start value of the concerned stage.On starting, the concerned stage provides astarting signal SS1 or SS2 and simultaneouslythe operation indicator of the stage is lit withyellow light. If the overcurrent situation lastslong enough to exceed the set operation delay,the stage that started provides a tripping signal,TS1 or TS2. At the same time the operationindicator of the concerned stage is lit with redlight. The red operation indicator remains litalthough the protection stage resets. The yellowstart indications and the red operation indica-tions can be given self-reset or latching mode ofoperation. When the latching mode is selectedthe indicators are restet with the RESET push-button on the module's front panel or by thecommand V101 or V102 over the serial inter-face.
The operation of the low-set overcurrent stageI> can be blocked by routing a blocking signalBTS1 to the stage. Similarly, the operation ofthe high-set overcurrent stage I>> can be blockedby a blocking signal BTS2. The blockings areselected by means of switchgroup SGB on thePC board of the relay module.
If the protection relay incorporates an auto-reclose relay module, switchgroup SGB is addi-tionally used for the purpose of selecting thestart signals for the auto-reclose module. Theinstructions for selector switchgroup SGB aregiven in the general description of the pro-tection relay unit, in association with the dia-gram illustrating the signals between the relaymodules.
The operation of the low-set overcurrent stageI> can be based on definite time or inversedefinite minimum time (IDMT) characteristic.The required operation characteristic is selected
with switch SG1/3. At definite time character-istic the operation time t> can be selected withinone of the three available setting ranges of thestage. The operation time setting range is se-lected with switches SG1/1 and SG1/2. Wheninverse time characteristic (IDMT) is used fourtime/current curve groups with different slopesof inversity are available. The required charac-teristic is selected with switches SG1/1 andSG1/2.
The operation time t>> of the high-set overcur-rent stage is set separately. The setting range,one of three available, is selected by means ofswitches SG1/7 and SG1/8.
Normally both overcurrent stages are self-reset.With the selector switch SG1/4 both stages canbe given a so called latching function, whichmeans that the tripping output is kept energizedafter an operation though the fault has disap-peared, until separately reset. The outputs arereset by pressing the push-buttons STEP andRESET simultaneously or by the commandsV101 or V102 over the serial interface. See alsotable (switchgroup SG3) on page 9 in chapter"Selector switches".
The set start value of the high-set overcurrentstage I>> may be automatically doubled when theprotected object is energized, i.e. during a currentinrush situation. Thus the set start value of thehigh-set overcurrent stage can be lower than theconnection inrush current. The automatic dou-bling feature is selected with switch SG1/5. Astarting situation is defined as a situation wherethe phase currents increase from a value below0.12 x I> to a value exceeding 3.0 x I> in less than60 ms. The starting situation ceases when thephase currents fall below 2.0 x I>.
The setting range of the high-set overcurrentstage is selected with switch SG1/6. Two alter-natives setting ranges are available, 2.5...20 x Inand 0.5...4.0 x In. When the lower range ischosen the relay module will contain two almostidentical operation stages. In this case the over-current module SPCJ 3C3 may be used e.g. as atwo-stage load shedding module. The operationof the high-set overcurrent stage may be blockedby choosing the setting value ∞, infinite.
Description ofoperation
4
Block diagram
Fig. 1. Block diagram for the overcurrent relay module SPCJ 3C3.
IL1, IL2, IL3 Measured phase currentsBS1, BS2, BS3 External blocking signalsBTS1 Blocking signal for the tripping of stage I>BTS2 Blocking signal for the tripping of stage I>>SG1 Selector switchgroup on the front panelSG2 Function selector switchgroup for the operation indicatorsSGB Blocking signal selector switchgroup on the PC board and
starting signal selector switchgroup for the auto-reclose functionsSS1 Start signal of stage I>TS1 Trip signal of stage I>SS2 Start signal of stage I>>TS2 Trip signal of stage I>>AR1, AR2 Start signals for auto-reclose functionsY Yellow indicator, startingR Red indicator, tripping
NOTE!All input and output signals of the relay moduleare not necessarily wired to the terminals of anyprotection relay incorporating this module. Thesignals wired to the terminals are shown in the
diagram illustrating the interchange of signalsbetween the various modules of the protectionrelay.
5
Front panel
Simplified device symbol
Self-supervision systemalarm indicator
Display for set andmeasured values
Display step push-button
Selector switchgroup SG1
Indicator for switchgroupSG1, SG2 and SG3
Reset push-button
Start and operationindicatorsRelay module typedesignation
L1 IRF
>I
L2I L3II
1309
[ ]sk
>t0.5
0.05 1.0
13
2.5
0.5
0.04 1.0
0.5
1.5
2.5
STEP
RESET
SG1
0 1
1234567820
STEP
>>I
nI>I
nI>>I
>>t [ ]s
>I >>I
SPCJ 3C3
B
Current measurement indicatorsfor phases L1, L2, L3
Indicator and start value settingknop of overcurrent stage I>
Indicator and operation time ortime multiplier k setting knob ofovercurrent stage I>
Indicator and start value settingknop of overcurrent stage I>>
Indicator and operation timesetting knop of overcurrentstage I>>
Fig. 2. Front panel of the overcurrent relay module SPCJ 3C3.
Operationindicators
Both overcurrent stages are provided with ayellow/red indicator. Yellow light indicates start-ing of the concerned overcurrent stage and redlight indicates that the overcurrent stage hasoperated (tripped).
The four indications, two starts and two trip-pings, can be given a self-reset mode of opersa-tion or manual reset mode. If, for instance, theyellow start indicator of the low-set overcurrentstage I> has been given the manual reset mode,the indicator is lit with yellow colour when theovercurrent stage starts and turning red whenthe stage operates. When the protection stagereturns to normal the yellow indication remainslit. The indicators that have been given themanual reset mode are reset by pushing theRESET push-button or by the command V101or V102 via the serial interface. The function ofthe relay module is not affected by an unresetoperation indicator.
When the display of the relay module is darkand one of the protection stages operates, the
indicators for the measured values of the moduleindicate the faulty phase, i.e. in which phase(s)the current has exceeded the setting value of thestage (so called phase fault indication). If, forinstance, the operation indicator of stage I> is litwith red light and the indicators IL1 and IL2 alsoare lit, the relay operation was caused by over-current on phases L1 and L2. The phase faultindications are reset by pushing the STEP push-button or the RESET push-button. See alsotable (switchgroup SG3) on page 9 in chapter"Selector switches".
The self-supervision alarm indicator IRF indi-cates that the self-supervision system has de-tected a permanent fault. The indicator is litwith red light shortly after a permanent internalfault has been detected. At the same time acontrol signal is put forward to the output relayof the self-supervision system. Additionally, inmost fault cases, a fault code indicating type offault appears on the display of the relay module.The fault code is to be recorded to serve thesubsequent fault location and repair actions.
6
The setting values are shown by the threerightmost digits of the display. When lit, the
indicator below a setting knob shows that theconcerned setting value is being displayed.
I>/In Set start current of stage I> as a multiple of the rated current In of the energizing inputused. Setting range 0.5...2.5 x In.
t> [s] The set start time of stage I>, expressed in seconds, when the definite time characteristick is used (SG1/3 = 0). The setting range is determined by the position of switches SG1/1
and SG1/2. Selectable setting ranges 0.05...1.00 s, 0.5...10.0 s and 5...100 s.
At inverse definite minimum time characteristic (SG1/3 = 1) the setting range of timemultiplier k is 0.05...1.00.
I>>/In Set starting current of stage I>> as a multiple of the rated current In of the energizing inputused. Setting range 2.5...20.0 x In, when SG1/6 = 0, and 0.5...4.0 x In, when SG1/6 = 1.Additionally, the setting infinite (displayed as - - -) can be selected, rendering the high-set stage I>> inoperative.
t>> [s] The set operation time of stage I>>, expressed in seconds. The setting ranges, 0.04...1.00 s,0.4...10.0 s and 4...100 s, are determined by the position of switches SG1/7 and SG1/8, seebelow.
Settings
Further, the checksum of the selector switch-group SG1 is indicated on the display when theindicator under the switchgroup is glowing. Inthis way a checked can be carried out to provethat the switches have been set and that the
switches themselves work properly. An exampleof calculating the checksum is given in thedescription "General characteristics of C-typerelay modules".
7
Selector switches Additional functions required by individual ap-plications are selected by means of the selectorswitches of switchgroup SG1 located on the
front panel. The numbering of the switches1...8, as well as the switch positions 0 and 1 aremarked on the front panel.
Switch Function
SG1/1 Switch SG1/3 is used for choosing the operation characteristic of the low-set currentSG1/2 stage I>, i.e. definite time or inverse definite minimum time (IDMT) characteristic.SG1/3 At definite time mode characteristic the setting range of the operation time t> is
selected by means of switches SG1/1 and SG1/2, whereas, at inverse definite minimumtime characteristic the switches are used for choosing the current/time characteristicof the overcurrent stage.
SG1/1 SG1/2 SG1/3 Characteristic Operation time t> ortype of characteristic
0 0 0 Definite time 0.05...1.00 s1 0 0 " 0.5...10.0 s0 1 0 " 0.5...10.0 s1 1 0 " 5...100 s
0 0 1 IDMT Extremely inverse1 0 1 " Very inverse0 1 1 " Normal inverse1 1 1 " Long-time inverse
SG1/4 Selection of the latching function for the tripping signals TS1 and TS2.
When SG1/4 = 0, the tripping signals return to normal (= the output relay resets, whenthe energizing input signal causing the operation falls below the start level.When SG1/4 = 1, the tripping signals remain on (= output relay energized), althoughthe energizing input signal falls below the starting level. The latched tripping signalsare reset by pressing the push-buttons STEP and RESET simultaneously or with thecommand V101. When the STEP and RESET push-buttons are pushed the recordedvalues are erased as well. *)
SG1/5 Selection of automatic doubling of the setting value of the high-set overcurrent stagewhen the protected object is connected to the network.
When SG1/5 = 0, no doubling of the set start value of stage I>> is obtained.When SG1/5 = 1, the set start value of stage I>> doubles automatically. The doublingfeature makes it possible to give the high-set current stage a setting value, which islower than the connection inrush current of the protected object.
SG1/6 Selection of the start current setting range of the high-set overcurrent stage I>>.
When SG1/6 = 0, the setting range is 2.5...20 x In and ∞, infinite.When SG1/6 = 1, the setting range is 0.5...4 x In and ∞, infinite.When SG1/6 =1, the module comprises two almost identical overcurrent stages andmay in this case be used for load shedding purposes. The setting ∞, infinite, isindicated by - - - on the display.
*) From the program version 052 C and later an additional switchgroup (SG3) has been incorpratedinto the relay module. When the latching function is used the latched output can be resetby pushing the RESET button alone, if SG3/3=1, or by pushing the STEP button alone, ifSG3/2=1, in which case the stored information of the module is not erased.
8
Switch Function
SG1/7 Selection of the setting range of the operation time t>> of the high-set overcurrentSG1/8 stage I>>.
SG1/7 SG1/8 Operation time t>>
0 0 0.04...1.00 s1 0 0.4...10.0 s0 1 0.4...10.0 s1 1 4...100 s
Switchgroup SG2 is a so called software switch-group, which is located in the third submenu ofswitchgroup SG1. In switchgroup SG2 the modeof operation of the LED indicators is selected.The start and operation indicators of the low-setand the high-set overcurrent stage can be givenself-reset mode of operation or latching mode ofoperation. The selection is made by means of a
checksum which is calculated from the tablebelow. Normally the start indications are self-reset and the operation indications latching.
If the checksum of switchgroup SG2 = 0 noLED indications are obtained after a fault, i.e.no start or operation indications I> or I>> norphase indications IL1, IL2 or IL3.
Indication Latching Default
Starting, stage I>, yellow 1 0Tripping, stage I>, red 2 2Starting, stage I>>, yellow 4 0Tripping, stage I>>, red 8 8
Checksum 15 10
9
Switchgroup SG3 is a so called software switch-group, which is located in the fourth submenuof switchgroup SG1. The front panel push-
buttons STEP and RESET can be programmedwith switches SG3/1…3. Switches SG3/4…8are not in use. The default value for SG3 is 0.
SG3/1 SG3/2 SG3/3 Push-button Clear Reset Erasestart/trip latched memorizedLED's relays values
STEP0 0 0 RESET x
STEP & RESET x x x
STEP x1 0 0 RESET x
STEP & RESET x x x
STEP x x0 1 0 RESET x
STEP & RESET x x x
STEP0 0 1 RESET x x
STEP & RESET x x x
STEP x1 0 1 RESET x x
STEP & RESET x x x
The PC board of the relay module holds aswitchgroup SGB including switches 1...8.Switches 1...3 are used for selecting the startingsignals for a possible auto-reclose module,whereas switches 4...8 are used for routing
blocking signals to the overcurrent module invarious protection relays. The functions of theselector switchgroup SGB is described in thegeneral part of the manual of the concernedprotection relay.
Measured data The measured values are displayed by therightmost three digits on the display. The rele-
vant measured data are indicated by a lit indica-tor on the front panel.
Indicator Measured data
IL1 Line current on phase L1 as a multiple of the rated current In.
IL2 Line current on phase L2 as a multiple of the rated current In.
IL3 Line current on phase L3 as a multiple of the rated current In.
NOTE! The rated current In is the rated current of the energizing input taken in use in the concernedprotection relay.
10
Recordedinformation
The leftmost digit of the display shows theaddress of the register and the three rightmost
digits the recorded information. The addressdigit is recognized by its red colour.
Register/ Recorded informationSTEP
1 Maximum phase current measured as a multiple of the rated current of the protectionrelay. If the module operates, the current value at the moment of operation is storedin the memory. A new tripping erases the old value and updates the register with thenew value. The same thing happens if the current exceeds a previously registeredmaximum value.
In the 1.st submenu the current value measured at the last operation is recorded.
2 Number of startings of the low-set overcurrent stage I>, n (I>) = 0...255.
3 Number of startings of the high-set overcurrent stage I>>, n (I>>) = 0...255.
4 Duration of the latest starting situation of stage I> as a percentage of the set operationtime t> or at IDMT mode of operation the calculated operation time. A new startingresets the counter which thus always contains the value from the latest starting. Whenthe stage has operated, the counter reading is 100.
5 Duration of the latest starting situation of stage I>> as a percentage of the set operatingtime t>>. A new starting resets the counter which thus always contains the value fromthe latest starting. When the stage has operated, the counter reading is 100.
0 Display of blocking signals and other external control signals. The leftmost digitindicates the state of the blocking inputs of the module. The following states may beindicated:0 = no incoming blockings1 = operation of stage I> blocked2 = operation of stage I>> blocked3 = operation of both stages blocked
In this register the middle green digit of the display is always zero. The leftmost greendigit indicates the state of the remote reset input, if any. The following states maybe indicated:0 = remote reset control input not energized1 = remote reset control input energized
From this register it is possible to move on to the TEST mode, where the start andoperation signals of the module can be activated one by one. For further details seethe description "General characteristics of C-type relay modules".
11
Register/ Recorded informationSTEP
A The address code of the protection relay module, required by the serial communicationsystem. If the address code is set at zero the serial communication is out of use.The submenus in this register are:
1) Selection of data transfer rate for the serial communication.Selectable values: 300, 1200, 2400, 4800 or 9600 Bd. Default value 9600 Bd.
2) Bus communication counter. If the module is connected to a data communica-tion device and the communication system is working, the communicationcounter shows 0. If the communication is interrupted the numbers 0…255 isscrolling in the display.
3) Password required for the remote control of relay settings
- Display dark. By pressing the STEP push-button the starting point of the displaymenu obtained.
The values of the registers 1...5 are erased bypressing the push-buttons STEP and RESETsimultaneously or with the command V102.The register values are also erased if the auxiliarypower supply of the module is interrupted. Theaddress code of the relay module, the value of
the data transfer rate of the serial communica-tion and the password are not erased by anauxiliary voltage interruption. The instructionsfor setting the address and the data transfer rateare given in the description "General character-istics of C-type relay modules".
12
Main menus andsubmenus ofsettings andregisters
The diagram below shows the available mainmenus and submenus of the overcurrent relaymodule SPCJ 3C3.
Normal state, display switched off
21
Remotely set opera-tion time t>> x p4Operation time t>> of stage I>> 21
Checksum of switchgoup SG1
Remotely setpercentage p4
1
Set start current of stage I>>
Operation time t> ortime multiplier k of stage I>
SUBMENUSTEP FORWARDS 1 sSTEP BACKWARDS 0.5 s
MAIN
MENU
STEP
BACKWARDS
.5s
STEP
FARWARDS
1s
MAIN MENU SUBMENU
STEP 0.5 s RESET 1 s
1
2
Stored maximum phase current value Current value at last operation1
Current on phase L1
Current on phase L2
Current on phase L3
Set start current of stage I>
2 Remotely setchecksum of SG1
1 Remotely setchecksum of SG1
2
Remotely set start current value I>> x p3
Remotely set value t> x p2 or k x p2
Remotely set start current value I> x p1
Remotely setpercentage p3
Remotely setpercentage p2
Remotely setpercentage p1
1
Number of starts of the low-set stage I>2
3
Duration of the last start event of stage I>
5
4
Status of the external blocking /control input0
Address code of the relay moduleA
0 000
Data transfer rate [Bd]1
Number of starts of the high-set stage I>>
SS1 TS1 TS2IRF SS2
Bus communicationmonitor 0..255 s2 Password for
remote setting3
Duration of the last start event of stage I>>
= value that can be set in the setting mode
3 SG2 4 SG3
Instructions for entering a submenu or thesetting mode, procedures for doing the settingsand for handling the TEST mode are given in
the manual "General characteristics of C-typerelay modules".
13
The slope of the time/current curves is deter-mined by the values of the constants α and β:
Characteristic of the α β time/current curves
Normal inverse 0.02 0.14 Very inverse 1.0 13.5 Extremely inverse 2.0 80.0 Long-time inverse 1.0 120.0
According to the standard BS 142 of 1966 anormal current range is defined as 2...20 timesthe setting. Additionally the relay must start atthe latest when the measured current exceeds1.3 times the set start current, when the time/current characteristic is normal inverse, veryinverse or extremely inverse. At long-time in-verse characteristic, the normal range accordingto the standard is 2...7 times the set start currentand the relay is to start when the current exceeds1.1 times the set start current.
The following requirements with regard to op-eration time tolerances are specified in the stand-ard, where E denotes accuracy in per cent, - = notspecified:
I/I> Normal inverse Very inverse Extremely inverse Long-time inverse
2 2.22 E 2.34 E 2.44 E 2.34 E 5 1.13 E 1.26 E 1.48 E 1.26 E 7 - - - 1.00 E
10 1.01 E 1.01 E 1.02 E -20 1.00 E 1.00 E 1.00 E -
Over the normal current ranges, the inverse-time stage of the overcurrent module SPCJ 3C3complies with the tolerances of class 5 for allfour characteristics.
The time/current characteristics specified in thestandards are illustrated in Fig. 3, 4, 5, and 6.
Time/currentcharacteristics
The operation of the low-set current stage I> ofthe overcurrent module is based on either defi-nite time or inverse time characteristic. Theoperation characteristic is selected with switch 3of switchgroup SG1, see page 7.
When an I.D.M.T. characteristic is chosen, theoperation time of the low-set overcurrent stageI> will be a function of the current; the higherthe current, the shorter the operation time. Therelationship between current and time complywith the standards BS 142 of 1966 and IEC255-4 and may generally be expressed as:
t = [s]
where t = operation time in secondsk = time multiplierI = measuring currentI> = set start current
The module includes four characteristics withdifferent slopes. The characteristic to be used ischosen with switches 1 and 2 of switchgroupSG1, see page 7.
k x β I α
I>( ) –1
14
Inverse-timecharacteristics ofovercurrent relaymodule SPCJ 3C3.
Fig. 3. Extremely inverse characteristic.
I = measured currentI> = set start currentt = operation timek = time multiplier
1 3 4 5 6 7 8 9 102 20 I/I>
0.05
0.1
0.2
0.3
0.4
0.6
0.8
1.0
k
0.02
0.03
0.04
0.05
0.06
0.070.080.090.1
0.2
0.3
0.4
0.5
0.6
0.7
0.80.9
1
2
3
4
5
6
789
10
20
30
40
70
60
50
t/s
15
Fig. 4. Very inverse characteristic.
I = measured currentI> = set start currentt = operation timek = time multiplier
1 2 3 4 5 6 7 8 9 10 20 I/I>
0.05
0.1
0.2
0.3
0.4
0.5
0.6
0.70.80.91.0
k
0.02
0.03
0.04
0.05
0.06
0.070.080.090.1
0.2
0.3
0.4
0.5
0.6
0.7
0.80.9
1
2
3
4
5
6
789
10
20
70
60
50
40
30
t/s
16
Fig. 5. Normal inverse characteristic.
I = measured currentI> = set currentt = operation timek = time multiplier
0.05
0.1
0.2
0.3
0.4
0.5
0.60.70.80.91.0
k
1 2 3 4 5 7 8 9 10 20 I/I>60.02
0.03
0.04
0.05
0.06
0.070.080.090.1
0.2
0.3
0.4
0.5
0.6
0.7
0.80.9
1
2
3
4
5
6
789
10
20
30
40
50
60
70
t/s
17
Fig. 6. Long-time inverse characteristic.
I = measured currentI> = set start currentt = operation timek = time multiplier
1 2 3 4 5 10 206 7 8 9 I/I>
0.05
0.1
0.2
0.3
0.4
0.5
0.6
0.70.80.91.0
k
0.2
0.3
0.4
0.5
0.6
0.70.80.9
1
2
3
4
5
6
7
89
10
20
30
40
50
60
708090
100
200
300
400
500
600
700
t/s
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Technical data Low-set overcurrent stage I>Start current I> 0.5...2.5 x InStart time, typically 55 msOperate time t> at definite timecharacteristic 0.05...1.00 s, 0.5...10.0 s or
5...100 sTime/current curves at inversetime characteristic (IDMT) Extremely inverse
Very inverseNormal inverseLong-time inverse
Time multiplier k 0.05...1.00Reset time, typically 60 msRetardation time <30 msDrop-off/pick-up ratio, typically 0.96Operation time accuracy atdefinite time operation characteristic ±2% of set value or ±25 msOperation time accuracy class E atinverse time mode of operation 5Operation accuracy ±3% of set value
High-set overcurrent stage I>>Start current I>> 2.5...20.0 x In & ∞, infinite or
0.5...4.0 x In & ∞, infiniteStart time, typically 40 msOperation time t>> 0.04...1.00 s, 0.4...10.0 s or
4...100 sReset time, typically 60 msRetardation time <30 msDrop-off/pick-up ratio, typically 0.96Operation time accuracy ±2% of set value or ±25 msOperation accuracy ±3% of set value
19
E1...E8 are represented by the numbers 1, 2,4...128. The event mask is formed by multiply-ing, one by one, the above numbers either with0 (event not included in the reporting) or 1(event included in the reporting) and adding theproducts, check for the procedure for calculat-ing the checksum.
The event mask may take a value within therange 0...255. The default value of the relaymodule SPCJ 3C3 is 85, which means that allstart and trip signals are included in the report-ing, but not the resetting. The event codesE50...E54 and the events represented by thesecannot be excluded from the reporting.
Event codes for the overcurrent relay moduleSPCJ 3C3:
Event codes The substation level control data communica-tor is able to read, over the SPA serial bus, theevent data of the protection module of the relay,e.g. start and trip information. Event informa-tion that have been read are printed out in theformat: time (ss.sss) and event code. The eventcodes of the relay module SPCJ 3C3 are denotedE1...E8, E50 and E51. Additional event codes,i.e. E52…E54, are generated by the control datacommunicator. These event codes are, for in-stance, related to the data communication.
The event codes E1...E8 and the events repre-sented by these can be included in or excludedfrom the event reporting by writing, over theSPA-bus, an event mask (V155) to the relaymodule. The event mask is a binary numbercoded to a decimal number. The event codes
Code Event Number Factory setrepresenting default valuethe event
E1 Starting of stage I> 1 1E2 Reset of starting of stage I> 2 0E3 Tripping of stage I> 4 1E4 Reset of tripping of stage I> 8 0E5 Starting of stage I>> 16 1E6 Reset of starting of stage I>> 32 0E7 Tripping of stage I>> 64 1E8 Reset of tripping of stage I>> 128 0E50 Restarting * -E51 Overflow of event register * -E52 Temporary disturbance of the data communication * -E53 No response from the relaymodule over the data
communication * -E54 The relay module responds again over the data
communication * -
0 not included in the event reporting1 included in the event reporting* no code number- cannot be programmed
20
and some other data. Further, part of the datacan be altered by commands given over the SPAbus. Any information is located on channel 0,which needs not to be written in the data com-munication instructions.
Remote transferdata
Apart from the event codes the control datacommunicator is able to read, over the SPA bus,all input data (I data) of the relay module, setvalues (S values), output status data (O data)information recorded in the memory (V data),
Data Code Data Valuesdirect.
Current on phase L1 as a multiple I1 R 0...63 x Inof the rated currentCurrent on phase L2 as a multiple I2 R 0...63 x Inof the rated currentCurrent on phase L3 as a multiple I3 R 0...63 x Inof the rated currentBlocking of tripping of stage I> I4 R 0 = no blocking
1 = tripping of stage I> blockedBlocking of tripping of stage I>> I5 R 0 = no blocking
1 = tripping of stage I>> blocked
Starting of stage I> O1 R 0 = stage I> has not started1 = stage I> started
Tripping of stage I> O2 R 0 = stage I> not tripped1 = stage I> tripped
Starting of stage I>> O3 R 0 = stage I>> not started1 = stage I>> started
Tripping of stage I>> O4 R 0 = stage I>> not tripped1 = stage I>> tripped
Alerted start value for stage I> S1 R 0.5...2.5 x InAlerted operation time for stage I> S2 R 0.05...100 sor time multiplier k 0.05...1.00Alerted start value for stage I>> S3 R 0.5...20 x In
999 = ∞, infiniteAlerted operation time for stage I>> S4 R 0.04...100 sAlerted checksum of switchgroup SG1 S5 R 0...255
Start value of stage I>, set with S11 R 0.5...2.5 x Inthe setting knobOperation time or time multiplier of S12 R 0.05...100 sstage I>, set with the setting knob 0.05...1.00Start value of stage I>>, set with S13 R 0.5...20 x Inthe setting knob 999 = ∞, infiniteOperation time of stage I>>, set S14 R 0.04...100 swith the setting knobChecksum of switchgroup SG1, S15 R 0...255set with the switches
Remote setting percentage of the S21 R, W 0...999%start value of stage I>Remote setting percentage of the S22 R, W 0...999%operation time or time multiplierof stage I>Remote setting percentage of the S23 R, W 0...999%start value of stage I>>Remote setting percentage of the S24 R, W 0...999%operation time of stage I>>Remotely set checksum for the S25 R, W 0...255switchgroup SG1
21
Data Code Data Valuesdirect.
Remotely set start value of stage I> S31 R 0.5...2.5 x InRemotely set operation time value S32 R 0.05...100 sor time multiplier of stage I> 0.05...1.00Remotely set start value of stage I>> S33 R 0.5...20 x In
999 = ∞, infiniteRemotely set operation time value S34 R 0.04...100 sof stage I>>Remotely set checksum of switch- S35 R 0...255group SG1
Max. measured current or current V1 R 0...63 x Invalue at relay operationNumber of starts of stage I> V2 R 0...255Number of starts of stage I>> V3 R 0...255Duration of the latest start V4 R 0...100%situation of stage I>Duration of the latest start V5 R 0...100%situation of stage I>>Phase data recorded at the V6 R 1 = IL3>, 2 = IL2>, 4 = IL1>,latest triping occasion 16 = IL3>>, 32 = IL2>>,
64 = IL1>> + combinationsCurrent value at relay operation V7 R 0…63 x In
Resetting of output relays and V101 W 1 = output relays and operationoperation indicators indicators are resetResetting of output relays and V102 W 1 = output relays and operationoperation indicators and erasing indicators are reset andof recorded data registers (codes V1...V7)
are erased
Remote control of settings V150 R, W 0 = setting with knobs S11...S15alerted
1 = remote settings S31...S35alerted
Event mask word V155 R, W 0...255, see paragraph"Event codes"
Manual or automatic resetting of V156 R, W 0…15, see paragraphLED indicators (SG2) "Selector switches"Programming push-buttons (SG3) V157 R, W 0…7, see paragraph
"Selector switches"
Opening of password for remote V160 W 1...999setting of module parametersRenaming or closing of password V161 W 0...999for remote setting of parameters
Activation of the self-supervision V165 W 1 = self-supervision output issystem output activated and IRF indicator
turns on in about 5 seconds,whereafter the self-supervi-sion system and the IRFindicator reset.
Fault code number V169 R 0…255
22
Data Code Data Valuesdirect.
Data communication address of V200 R, W 1...254the relay module
Program version number V205 R e.g. 052 B
Relay module type designation F R SPCJ 3C3
Reading of event register L R Time, channel number andevent code
Re-reading of event register B R Time, channel number andevent code
Reading of relay module state data C R 0 = normal state1 = module been subject to
automatic reset2 = overflow of event register3 = events 1 and 2 together
Resetting of module state data C W 0 = resetting
Time reading and setting T R, W 00.000...59.999 s
R = data to be read from the unitW = data to be written to the unit
The data transfer codes L, B, C and T have beenreserved for the event data transfer between therelay module and the substation level controldata communicator.
The event register can be read only once by theL command. Should a fault occur, for instance,in the data transfer, it is possible, by using the Bcommand, to re-read the contents of the eventregister once read by means of the L command.When required the B command can be re-peated.
The set values S1...S5 are the alerted set valuescurrently used by the relay. These values can beset either by means of the setting knobs andselector switches or by remote control. Thevalues S11...S15 are set with the setting knobsand the switches of the relay module. The valuesS21...S25 are percentage factors to be multi-plied by the set values given with the setting
knobs. The set values S21...S25 can be bothread and written. A condition for writing is thatthe password, V160, for remote setting has beenopened and the potentiometer settings must bevalid, V150=0. The variables S31...S35 containthe actual remotely set values.
The remote setting percentage of variablesS21...S24 can be given a percentage value withinthe range 0...999. This means that set valuesoutside the limits of the specified setting rangecan be given to a certain parameter. However,the proper operation of the relay is guaranteedonly for set values within the setting range limitsspecified in the technical data.
Activation of the self-supervision input (V165)prevents the relay from operating as long as theself-supervision input is active and the IRFindicator is lit.
23
After an operation the relay module indicates bymeans of variable V6 the phases (phase indica-tion) which have exceeded the setting value ofthe low-set stage or the high-set stage at themoment of operation. The same data are indi-cated by the LED indicators of the module, seesection "Operation indicators". The data are
binary numbers coded to decimal numbers, sothat, for the low-set overcurrent stage as well asfor the high-set overcurrent stage, each phase isrepresented by a specific number. The final codeis obtained by adding the separate phase codenumbers.
Coding of phase fault data:
Fault Codenumber
Low-set stage I> set value exceeded on phase L3 1Low-set stage I> set value exceeded on phase L2 2Low-set stage I> set value exceeded on phase L1 4High-set stage I>> set value exceeded on phase L3 16High-set stage I>> set value exceeded on phase L2 32High-set stage I>> set value exceeded on phase L1 64
For instance when V6 = 7 (1 + 2 + 4), the low-set current stage has operated (tripped) and thecurrent on each phase has exceeded the set startvalue of the low-set stage I>.
Register data V6 includes two separate parts,one for the low-set overcurrent stage and one forthe high-set overcurrent stage. If the low-setovercurrent stage operates, the value of registerV6 is updated with regard to the codes 1, 2 and
4 only. If the high-set overcurrent stage oper-ates, only the codes 16, 32 and 64 are updated.A new value always erases the old recordedvalue.
Register V6 can be set to zero either by pushingthe buttons STEP and RESET simultaneouslyor by giving the variable V102 the value 1 via theSPA bus.
Fault codes Shortly after the self-supervision system hasdetected a permanent internal fault the red faultindicator IRF on the relay module front panel islit. At the same time the self-supervision systemputs forward a control signal to the output relayof the self-supervision system. Further, in mostfault situations a self-diagnostic fault code isshown on the display of the relay module. Thefault code is composed of a red number one (1)
and a green, one or two digit code number. It isrecommended that the fault code number isnoted down and passed forward to the serviceshop when overhaul and repair of the faultyrelay module is ordered.
The three-phase overcurrent relay module SPCJ3C3 may display the following fault codes:
Fault code Type of fault
4 Trip signal path broken or output relay module missing30 Faulty program memory (ROM)50 Faulty random access memory (RAM)
195 Too low a value on the reference channel with multiplier 1131 Too low a value on the reference channel with multiplier 5
67 Too low a value on the reference channel with multiplier 25203 Too high a value on the reference channel with multiplier 1139 Too high a value on the reference channel with multiplier 5
75 Too high a value on the reference channel with multiplier 25253 No interruptions from the D/A converter
IRF
1310
[ ]s>t
0.5
0.05 1.0
50
10
0.5
0.05 1.0
2
10
20
STEP
RESET
SG1
0 1
12345678
>U >>U
SPCU 1C6
B
>>
[ ]s>>t
U o
nU>U o
nUUo 80
o o
[ ]%
[ ]%
U
STEP
SPCU 1C6Residual overvoltage relay module
User´s manual and Technical description
2
SPCU 1C6Residual overvoltage
relay module
Contents Features .......................................................................................................................... 2Description of operation ................................................................................................. 3Block diagram................................................................................................................. 4Front panel ..................................................................................................................... 5Operation indicators ....................................................................................................... 5Settings ........................................................................................................................... 6Selector switches ............................................................................................................. 6Measured data................................................................................................................. 7Recorded information ..................................................................................................... 8Menu chart ..................................................................................................................... 9Technical data ............................................................................................................... 10Serial communication parameters ................................................................................. 11
Event codes .............................................................................................................. 11Data to be transferred over the serial bus ................................................................. 12
Fault codes .................................................................................................................... 15
Features Low-set residual overvoltage stage U0> withdefinite time operation characteristic, settingranges 2...20% x Un and 10...100% x Un
High-set residual overvoltage stage U0>> withdefinite time operation characteristic, settingranges 10...80% x Un or 2...16% x Un
The operation of the high-set residual over-voltage stage can be set out of function by se-lecting the setting ∞, infinitive
Effective suppression of harmonics of the inputenergizing voltages
Local display of measured and set values as wellas data recorded at the moment of a relay op-eration
Flexible selection of special operational featuresfor particular applications
Continuous self-supervision of hardware andsoftware. At a permanent fault the alarm out-put relay picks up and the other outputs areblocked.
1MRS 750509-MUM EN
Issued 96-12-02Version A (replaces 34 SPCU 2 EN1)Checked L-W UApproved TK
Data subject to change without notice
3
Description ofoperation
The residual overvoltage relay module typeSPCU 1C6 is used in a variety of different pro-tection relay units where it constitutes a non-directional general earth-fault protection mod-ule which measures the residual voltage of theelectrical power system.
The residual overvoltage module contains twoovervoltage stages,that is a low-set stage U0> anda high-set stage U0>>.
The low-set or high-set voltage stage starts ifthe measured voltage exceeds the set start valueof the stage concerned. When starting, the con-cerned stage delivers a starting signal SS1 or SS2and simultaneously the operation indicator ofthe stage is lit with yellow colour. If the over-voltage situation lasts long enough to exceed theset operation delay, the stage that started alsooperates generating a trip signal, TS1 alt. TS2.The operation indicator of the stage that oper-ated turns red. The start and operation indica-tors are provided with memory control, whichmeans that they can be given the self-reset orthe latching mode of operation. The latchingindicators are reset with the RESET push-but-ton on the front panel or by means of the com-mand V101 or V102 via the serial port.
The tripping of the low-set overvoltage stageU0> can be blocked by routing a blocking sig-nal BTS1 to the low-set stage. Similarly, the trip-ping of the high-set stage U0>> is blocked by ablocking signal BTS2. The blocking signals arerouted by means of switchgroup SGB on thePC board of the relay module.
The setting range of the operation time t> ofthe low-set overvoltage stage U0> is selected withswitches SG1/1 and SG1/2. Three setting rangesare available.
Switches SG1/7 and SG1/8 are used for select-ing the setting range for the operation time t>>of the high-set stage U0>>. Three setting rangesare available.
The setting range of the start value of the low-set stage U0> is selected with switch SG1/5. Twosetting ranges are available, that is 2...20% x Unand 10...100% x Un.
The setting range of the start value of the high-set stage U0>> is selected with switch SG1/6. Twosetting ranges are available, that is 2...16% x Unor 10...80% x Un.
The operation of the two operating stages isprovided with a so called latching facility, whichmeans that the operation output is kept alerted,although the signal which caused the operationdisappears. The latching function is selectedwith switch SG1/4. The latched output and theoutput relay can be reset in three different ways;(i) by pressing push buttons STEP and RESETsimultaneously, (ii) via the serial inter-face us-ing the command V101 or (iii) via the serialinterface using the command V102. When al-ternative (ii) is used all recorded information ismaintained but if the alternatives (i) or (iii) isused the recorded information is erased.
The residual voltage signal input is providedwith an effective filter by means of whichhamonics of the measured residual voltage issuppressed, see Fig. 1.
dB 10
0
-10
-20
-30
-40
-50
-600 1 2 3 4 5 6 7 f / fn
Fig. 1. Filter characteristics of the residual volt-age input circuit.
4
Block diagram
Fig. 2. Block schematic diagram of the residual overvoltage relay module SPCU 1C6.
U0 Measured residual voltageBS1, BS2, BS3 Incoming external blocking signalsBTS1 Blocking of tripping of stage U0>BTS2 Blocking of tripping of stage U0>>SG1 Selector switchgroup on the relay module front panelSG2 Function selector switchgroup for the operation indicatorsSGB Selector switchgroup on the PC board for blocking signalsSS1 Start signal of stage U0>TS1 Trip signal of stage U0>SS2 Start signal of stage U0>>TS2 Trip signal of stage U0>>Y Yellow indicator, startingR Red indicator, tripping
NOTE!All input and output signals of the relay mod-ule are not necessarily wired to the terminals ofevery protection relay unit utilizing this mod-
ule. The signals wired to the terminals are shownin the signal diagram in the manual of the con-cerned protection relay unit.
5
Front panel
Voltage measurement indicator
Start voltage setting knoband indicator of stage U0>
Operation time setting knoband indicator of stage U0>
Start voltage setting knob andindicator of stage U0>>
Operation time setting knoband indicator of stage U0>>
IRF
1310
[ ]s>t
0.5
0.05 1.0
50
10
0.5
0.05 1.0
2
10
20
STEP
RESET
SG1
0 1
12345678
>U >>U
SPCU 1C6
B
>>
[ ]s>>t
U o
nU>U o
nUUo 80
o o
[ ]%
[ ]%
U
STEP
Simplified device symbol
Self-supervision alarmindicator
Display for set andmeasured values
Display step push-button
Selector switchgroup
Switchgroup indicator
Reset push-button
Operation indicators
Relay module typedesignation
Fig. 3. Front panel of the residual overvoltage relay module SPCU 1C6.
Operationindicators
Both voltage stages have their own yellow/redLED indicators. Yellow light indicates startingof the concerned overvoltage stage and red lightindicates that the overvoltage stage has operated.
The four LED indicators can, independently ofone another, be given a non-latching or a latch-ing mode of operation. The latching modemeans that the indicator remains lit after beingswitched on, although the overvoltage stage,which controls the indicator, resets. If, for in-stance, the yellow start indicator is given thelatching mode and the red indicator the non-latching mode, the yellow indicator is lit, whenthe stage starts, which then turns red if and whenthe stage operates. When the overvoltage stageresets only the yellow indicator remains lit. Theindicators, which have been given the latchingmode, are reset locally by pushing the RESETpush-button or by remote control over the SPAbus using the command V102.
An unreset operation indicator does not affectthe protective functions of the relay module.
The self-supervision alarm indicator IRF indi-cates that the self-supervision system has de-tected a permanent internal relay fault. The in-dicator is lit with red light shortly after the faulthas been detected. At the same time the relaymodule puts forward a control signal to the self-supervision system output relay of the protec-tion relay unit.
Additionally, in most fault cases, a fault codeshowing the nature of the fault appears on thedisplay of the module. The fault code, consist-ing of a red number one (1) and a green three-digit code number, indicates what type of in-ternal fault that has been detected. When a faultmessage appears, the fault code should be noteddown for later use when relay overhaul or re-pair is to be carried out.
6
Settings The setting values are shown by the threerightmost digits of the display. A LED indica-
tor below the setting knob shows, when lit,which setting value is presented on the display.
U0>/Un Start voltage value of the U0> stage, expressed as a percentage of the rated voltageof the energizing input used. The setting range is 2...20% x Un when SG1/5 = 0,and 10...100% x Un when SG1/5 = 1.
t> [s] Operate time of the U0> stage, expressed in seconds. The setting range is deter-mined by the position of switches SG1/1 and SG1/2. Selectable operate time set-ting ranges 0.05...1.00 s, 0.5...10.0 s and 5...100 s.
U0>>/Un Start voltage value of the U0>> stage, expressed as a percentage of the rated voltageof the energizing input used. The setting range is 10...80% x Un when SG1/6 = 0,and 2...16% x Un when SG1/6 = 1. The setting ∞, infinite, (displayed as - - -) setsthe high-set stage U0>> out of operation.
t>> [s] Operate time of the U0>> stage, expressed in seconds. The required setting range,0.05...1.00 s, 0.5...10.0 s or 5.00...100 s, is selected with switches SG1/7 andSG1/8.
Further, the checksum of the selector switch-group SG1 is shown on the display when theLED indicator below the switchgroup is lit. Bymeans of the displayed checksum and thechecksum manually calculated the proper op-
eration of the switchgroup SG1 can be verified.An example of how the checksum is calculatedis shown in the manual "General characteristicsof C type relay modules".
Selector switches Additional functions required by individualapplications are selected by means of the func-tion selector switches of switchgroup SG1 lo-cated on the front panel. The numbering of the
switches, 1...8, as well as the switch positions 0and 1 are marked on the relay module frontpanel.
Switch Function
SG1/1 Selection of setting range for the operate time t> of low-set stage U0>.SG1/2
SG1/1 SG1/2 Operate time t>
0 0 0.05...1.00 s1 0 0.5...10.0 s0 1 0.5...10.0 s1 1 5...100 s
SG1/3 Not in use. Has to be set in position 0.
SG1/4 Selection of latching function for the tripping signals TS1 and TS2.
When SG1/4 = 0, the trip signals reset to the initial state (= the output relay drops off ),when the measuring signal causing the operation falls below the set start voltage level.When SG1/4 = 1, the trip signals remain activated (= the output relay remains pickedup), although the measuring signal falls below the set start voltage level. Then the tripsignals are reset by pressing the push-buttons STEP and RESET simultaneously orwith the commands V101 or V102 via the serial port.
SG1/5 Selection of setting range for the start voltage value of the low-set stage U0>.
When SG1/5 = 0, the setting range is 2...20% x Un.When SG1/5 = 1, the setting range is 10...100% x Un.
7
Switch Function
SG1/6 Selection of setting range for the start voltage value of the high-set stage U0>>.
When SG1/6 = 0, the setting range is 10...80% x Un and ∞, infinite.When SG1/6 = 1, the setting range is 2...16% x Un and ∞, infinite.
SG1/7 Selection of setting range for the operate time t>> of the high-set stage U0>>.SG1/8
SG1/7 SG1/8 Operate time t>>
0 0 0.05...1.00 s1 0 0.5...10.0 s0 1 0.5...10.0 s1 1 5...100 s
Switchgroup SG2 is a so called software switch-group, which is located in the third submenuof switchgroup SG1. The mode of operation,i.e. self-reset or manually reset, of the LED in-dicators U0> and U0>> is determined by theswitches of switchgroup SG2. The mode of op-
eration can be separately set for each indicator.The mode of operation is set by means of thechecksum, which can be calculated from thefollowing table. Normally the start indicationsare self-reset and the operation indicationsmanually reset.
Indicator Manually reset Factory default
Start indicator U0> 1 0Operation indicator U0> 2 2Start indicator U0>> 4 0Operation indicator U0>> 8 8
Checksum 15 10
The PC board of the relay module contains aswitchgroup SGB including switches 1...8. Theswitches 1...3 are used for selecting the startingsignals, whereas switches 4...8 are used for rout-ing the blocking signals to the voltage module
in various protection relay units. Instructionsfor setting of switchgroup SGB are given in theuser's manual of the different protection relayunits.
Measured data The measured values are displayed by the threerightmost digits on the display. The measured
data to be displayed are indicated by a lit LEDindicator.
Indicator Measured data
U0 Residual voltage measured by the relay module, expressed as a percentage of therated voltage of the energizing input used.
8
Recordedinformation
The leftmost red digit displays the addressnumber of the register, the rightmost three greendigits display the recorded data.
Register/ Recorded dataSTEP
1 Maximum residual voltage measured by the module, as a percentage of the ratedvoltage Un of the used energizing input. If the module operates, the voltage value atthe moment of operation is stored in the memory. Any new operation erases the oldvalue and updates the register with the new value. The same thing happens if themeasured voltage exceeds a previously recorded maximum value.
2 Number of starts of the low-set overvoltage stage U0>, n (U0>) = 0...255.
3 Number of starts of the high-set overvoltage stage U0>>, n (U0>>) = 0...255.
4 Duration of the latest start situation of stage U0> as a percentage of the set operatetime t>. Any new start resets the counter, which then starts counting from zero.When the stage has operated, the counter reading is 100.
5 Duration of the latest start situation of stage U0>> as a percentage of the set operatetime t>>. Any new start resets the counter, which then starts recounting from zero.When the stage has operated, the counter reading is 100.
0 Display of blocking signals and other external control signals. The rightmost digitindicates the state of the blocking inputs of the relay module. The following statesmay be indicated:0 = no blockings1 = operation of the U0> stage blocked2 = operation of the U0>> stage blocked3 = operation of both stages blocked
In this register the second digit from he right is constantly zero. The leftmost digitindicates the state of the remote reset control input, if applicable. The followingstates may be indicated:0 = remote reset control input not energized1 = remote reset control input energized
From this register it is possible to move on to the TEST mode, where the start andoperation signals of the module can be activated one by one. For further details seemanual "General characteristics of C type relay modules".
A The address code of the protection relay module in the serial communication sys-tem. The serial communication is broken if the relay module is given the addresscode 0 (zero). Register A is provided with the following subregisters:1. Selection of data transfer rate for the serial communication. Selectable values
300, 1200, 2400, 4800 and 9600 Bd. Default value 9600 Bd.2. Bus communication monitor. If the relay module is connected to a serial com-
munication system and the serial communication system is in operation the coun-ter of the bus communication monitor will show the value 0 (zero). If the com-munication is broken the numbers 0…255 are scrolling in the counter.
3. Password required when changing relay module settings via remote control
Registers 1...5 are set to zero by pressing thepush buttons STEP and RESET simultaneouslyor by remote control using the command V102.The register values are also erased if the auxil-iary power supply of the module is interrupted.The address code of the relay module, the set
data transfer rate of the serial communicationand the password are not erased by a supplyvoltage interruption. Instructions for setting theaddress code and the data transfer rate are givenin the manual "General characteristics of C typerelay modules".
9
Menu chart
Display off. Normal state SUBMENUFORWARD STEP 1 sBACKWARD STEP 0.5 s
MAIN MENU
STEP
BACKWARD
.5s
STEP FORWARD
1s
MAIN MENU SUBMENU
STEP 0.5 s RESET 1 s
0 000 SS1 TS1 TS2IRF SS2
Residual voltage U
Remotely setpercentage p1
Alerted start voltage, stage
Remotely set startvoltage x p1
Remotely setpercentage p2
Alerted operation time t>, stage
Remotely set ope-ration time t> x p2
Remotely setpercentage p3
Alerted start voltage, stage
Remotely set start voltage x p3
Remotely setpercentage p4
Alerted operation time t>>, stage
Remotely set ope-ration time t>> x p4
Alerted checksum,switchgroup SG1
Remotely set checksum of SG1
Remotely set checksum of SG1
Chechsumof SG2
Recorded maximum value of the residual voltage
Number of starts of the residual voltage stage
Number of starts of the residual voltage stage
Duration of the latest start event stage
1
2
3
4
Duration of the latest start event of stage 5
Incoming blocking signals0
Relay module address code
Data transfer rate (Bd)
Bus communication monitor 0 ... 255 Password A
= Value that can be set in the setting mode0
U >0
U >>0
U >0
U >>0
U 0
U >0
U >>0
U >0
U >>0
U >>0
U >0
Fig. 4. Main menu and submenus of the residual overvoltage relay module SPCU 1C6.
The procedure for entering a submenu or a set-ting mode and configuring the module is de-
scribed in detail in "General characteristics ofC type relay modules".
10
Technical data Low-set overvoltage stage U0>Start voltage U0> 2...20% x Un or 10...100% x UnStart time, typically 70 msOperate time 0.05...1.00 s, 0.5...10.0 s or 5...100 sReset time <100 msDrop-off/pick-up ratio, typically 0.96Operate time accuracy ±2% of set value or ±40 msOperation accuracy- 10...100% x Un ±3% of set value- 2...20% x Un ±5% of set value
High-set overvoltage stage U0>>Start voltage U0>> 10...80% x Un and ∞, infinite or
2...16% x Un and ∞, infiniteStart time, typically 70 msOperate time 0.05...1.00 s, 0.5...10.0 s or 5...100 sReset time <100 msDrop-off/pick-up ratio, typically 0.96Operate time accuracy ±2% of set value or ±40 msOperation accuracy- 10...80% x Un ±3% of set value- 2...16% x Un ±5% of set value
11
Serialcommunicationparameters
Event codes
The substation level control data communica-tor is able to read, over the SPA serial bus, theevent messages of the relay module, e.g. startand trip messages, from the residual overvoltagerelay module SPCU 1C6. The events can beprinted out in the format: time (ss.sss) and eventcode. The event codes of the relay module areE1...E8 , E50 and E51. Additional event codesrelating to the data communication are gener-ated by the data communication equipment.
The event codes E1...E8 and the events repre-sented by these can be included in or excludedfrom the event reporting by writing, via the SPAbus, an event mask (V155) to the relay module.The event mask is a binary number coded to adecimal number. The event codes E1...E8 arerepresented by the numbers 1, 2, 4...128. The
event mask is formed by multiplying the abovenumbers either with 0, event not included or 1,event included in reporting and by adding theproducts, see instructions for checksum calcu-lation.
The event mask may take a value within therange 0...255. The default value of the residualovervoltage relay module SPCU 1C6 is 85,which means that any start or operation eventis included in the reporting, but no resettings.The event codes E50...E54 and the events rep-resented by these cannot be excluded from thereporting.
Event codes of residual voltage relay moduleSPCU 1C6:
Code Event Weighting Defaultcoefficient setting
E1 Starting of stage U0> 1 1E2 Starting of stage U0> reset 2 0E3 Tripping of stage U0> 4 1E4 Operation of stage U0> reset 8 0E5 Starting of stage U0>> 16 1E6 Starting of stage U0>> reset 32 0E7 Tripping of stage U0>> 64 1E8 Operation of stage U0>> reset 128 0
Default value of event mask V155 85
E50 Restart of microprocessor * -E51 Overflow of event register * -E52 Temporary interruption in the data communication * -E53 No response from the relay module over the data
communication bus * -E54 The relay module responds again over the data
communication bus * -
0 not included in the event reporting1 included in the event reporting* no code number, always included in event reporting- cannot be set
NOTE!In the SPACOM system the event codes E52...E54 are generated by the station level controldata communicator, e.g. type SRIO 1000M.
12
Data to betransferred overthe serial bus
In addition to the event code data transfer, theinput data (I data), output data (O data), set-ting values (S), memorized data (V data) andsome other data can be read from the relay
module over the serial communication bus.Further, part of the data can be changed overthe SPA bus by separate commands. All datainformation is available in channel 0.
Data Code Data Valuesdirect.
Input data
Energizing input voltage I1 R 0...250% x UnBlocking of operation of stage U0> I2 R 0 = no blocking
1 = operation of stage U0>blocked
Blocking of operation of stage U0>> I3 R 0 = no blocking1 = operation of stage I0>>
blocked
Output data
Starting of stage U0> O1 R 0 = stage U0> not started1 = stage U0> started
Operation of stage U0> O2 R 0 = stage U0> not tripped1 = stage U0> tripped
Starting of stage Uo>> O3 R 0 = stage U0>> not started1 = stage U0>> started
Operation of stage U0>> O4 R 0 = stage U0>> not tripped1 = stage U0>> tripped
Setting values
Alerted start value of stage U0> S1 R 2...100% x UnAlerted operate time of stage U0> S2 R 0.05...100 sAlerted start value of stage U0>> S3 R 2...80% x Un
999 = ∞, infiniteAlerted operate time of stage U0>> S4 R 0.05...100 sAlerted checksum of switchgroup SG1 S5 R 0...255
Start value of stage U0>, S11 R 2...100% x Unset with the setting knobOperate time of stage U0>, S12 R 0.05...100 sset with the setting knobStart value of stage U0>>, S13 R 2...80% x Unset with the setting knob 999 = ∞, infiniteOperate time of stage U0>>, S14 R 0.05...100 sset with the setting knobChecksum of switchgroup SG1, S15 R 0...255set with the switches
Remotely setting percentage of the S21 R, W 0...999%start value of stage U0>Remotely setting percentage of the operate S22 R, W 0...999%time of stage U0> or time multiplierRemotely set percentage for the S23 R, W 0...999%start value of stage U0>>Remotely setting percentage for the S24 R, W 0...999%operate time of stage U0>>Remotely set checksum of switchgroup SG1 S25 R, W 0...255
13
Data Code Data Valuesdirect.
Remotely set start value of stage U0> S31 R 2...100% x UnRemotely set operate time of stage U0> S32 R 0.05...100 sRemotely set start value of stage U0>> S33 R 2...80% x Un
999 = ∞, infiniteRemotely set operate time of stage U0>> S34 R 0.05...100 sRemotely set checksum of switchgroup SG1 S35 R 0...255
Max. measured voltage or voltage V1 R 0...250% x Unat operationNumber of starts of stage U0> V2 R 0...255Number of starts of stage U0>> V3 R 0...255Duration of the latest start V4 R 0...100%situation of stage U0>Duration of the latest start V5 R 0...100%situation of stage U0>>
Resetting of output relays and V101 W 1 = output relays andoperation indicators operation indicators resetResetting of output relays and operation V102 W 1 = output relays andindicators and erasing of recorded data operation indicators
reset and registers(codes V1…V5) erased
Remote control of settings V150 R, W 0 = setting with knobsS11...S15 activated
1 = remote settingsS31...S35 activated
Event mask word V155 R, W 0...255, see section"Event codes"
Manual reset or self-reset mode of V156 R, W 0…15, see sectionoperation of the LED indicators "Selector switches"
Opening of password for remote settings V160 W 1...999Changing or closing of password V161 W 0...999for remote settings
Activation of self-supervision function V165 W 1 = self-supervision outputis activated and the IRFindicator turns on inabout 5 seconds, where-after the self-supervisionsystem and the IRFindicator reset
Internal fault code V169 R 0…255
Data communication address of V200 R 1...254the relay module
Program version V205 R 070_
14
Data Code Data Valuesdirect.
Type designation of the relay module F R SPCU 1C6
Reading of event register L R Time, channel numberand event code
Re-reading of event register B R Time, channel numberand event code
Reading of module status data C R 0 = normal state1 = module been subject
to automatic reset2 = overflow of event register3 = events 1 and 2 together
Resetting of module status data C W 0 = resetting
Time reading or setting T R, W 00.000...59.999 s
R = data to be read from the moduleW = data to be written to the module
The data transfer codes L, B, C and T have beenreserved for the event data transfer between therelay module and the control data communi-cator.
The event register can be read by the L com-mand only once. Should a fault occur, for ex-ample, in the data transfer, it is possible, by us-ing the B command, to re-read the contents ofthe event register once already read by means ofthe L command. When required, the B com-mand can be repeated.
The setting values S1...S5 are the alerted setvalues currently used by the protection relaymodule. These values are set either by remotecontrol or by means of the setting knobs. Thevalues S11...S15 are set with the setting knobsand the selector switches. Variables S21...S25are set as percentage values via remote control.
The settings S21...S25 allow reading or writ-ing. A condition for writing is that the pass-word V160, for remote setting has been opened.The variables S31...S35 contain the remote set-ting values.
When the values of the variables S21...S24 areto be changed, the variables can be given a per-centage factor within the range 0...999. It ispossible to alter a setting value beyond the set-ting ranges specified in the technical data of therelay module. However, the validity of the set-ting values are guaranteed only within the set-ting ranges specified in the technical data.
Activation of the self-supervision function(V165) prevents the relay module from operat-ing as long as the self-supervision output is ac-tivated and the IRF indicator is lit.
15
Fault codes Once the self-supervision system has detected apermanent relay fault, the IRF LED on the frontpanel of the module is lit, and at the same timethe normally operated signal relay of the self-supervision system drops off.
In most fault situations an auto-diagnostic faultcode is shown on the relay display. The faultcode cannot be reset. The fault code consists of
a red digit one (1) and a green code numberthat indicates the fault type. The fault codeshould be recorded and stated when service isordered.
The fault codes of the residual overvoltage relaymodule SPCU 1C6 are explained in the follow-ing table:
Fault code Explanation
4 Faulty output relay path or missing output relay card30 Faulty program memory (ROM)50 Faulty working memory (RAM)
195 Too low a value in reference channel with multiplier 1131 Too low a value in reference channel with multiplier 5
67 Too low a value in reference channel with multiplier 25203 Too high a value in reference channel with multiplier 1139 Too high a value in reference channel with multiplier 5
75 Too high a value in reference channel with multiplier 25253 No interruptions from the A/D-converter
12 IRF
>U
23U 31UU
1315
[ ]sk
>t0.5
0.05 1.0
0.8
0.4
5.0
1.0 12
0.8
1.2
1.6
STEP
RESET
SG1
0 1
12345678
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nU>U
<t [ ]s
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SPCU 3C14
B
nU<U
1.2
STEP
SPCU 3C14Combined overvoltage and undervoltagerelay module
User´s manual and Technical description
2
SPCU 3C14Combined overvoltage
and undervoltagerelay module
Contents Features .......................................................................................................................... 2Description of operation ................................................................................................. 3Block diagram................................................................................................................. 4Front panel ..................................................................................................................... 5Start and operation indicators ......................................................................................... 5Settings ........................................................................................................................... 6Selector switches (Modified 99-12) ................................................................................. 6Measured data ................................................................................................................ 8Recorded information ..................................................................................................... 8Menu chart ................................................................................................................... 10Voltage/time characteristic (Modified 99-10) ................................................................ 11Technical data .............................................................................................................. 12Serial communication parameters ................................................................................. 13
Event codes ............................................................................................................. 13Data to be transferred over the serial bus (Modified 99-12) ..................................... 14
Fault codes .................................................................................................................... 17
Features Three-phase voltage measuring relay modulewhich also can be programmed for use in single-phase applications
Overvoltage stage with definite time or inversedefinite minimum time characteristic
Two sets of voltage/time curves selectable atinverse time operation
Undervoltage stage with definite time charac-teristic
External blocking of the undervoltage stage viabuilt-in control input
Automatic blocking of the undervoltage stageon loss of energizing voltage
Digital display of measured values, set valuesand recorded fault values
Serial communication capability for extensiveexchange of data with substation level equip-ment
Continuous self-supervision of hardware andsoftware for enhanced reliability and availability
Auto-diagnostic fault codes generated by themodule on detection of a permanent internalfault
1MRS 750510-MUM EN
Issued 96-12-02Modified 99-12-20Version D (replaces 34 SPCU 7 EN1)Checked KJApproved MN
Data subject to change without notice
3
Description ofoperation
The combined overvoltage and undervoltagemodule SPCU 3C14 is a three-phase relay mod-ule, which can be programmed for single-phaseoperation by means of switch SG1/1 on thefront panel. The module contains an overvoltagestage and an undervoltage stage. The overvoltagestage can be given either definite time or inversetime characteristic, whereas the operation of theundervoltage stage is based on definite timecharacteristic only.
If one of the voltages measured by the moduleexceeds the set start value of the U> stage, themodule delivers a start signal SS1 after the setstart time has expired. The start time of the U>stage is selected by means of switch SG1/2, andtwo alternative values are available. After thepreset operate time t>, or at inverse time charac-teristic, after a time depending on the level of theovervoltage, the overvoltage stage operates de-livering a trip signal TS1.
The operation characteristic of the U> stage, i.e.definite time or inverse time characteristic, isselected with switch SG1/3. At definite timecharacteristic the setting range of the operating
time is programmed with switches SG1/4 and 5.At inverse time characteristic two different setsof voltage/time curves, called A and B, can beselected by means of switch SG1/4. At inversetime characteristic switch SG1/5 has no func-tion.
If one of the voltages measured by the modulefalls below the set start value of the U< stage, themodule delivers a start signal SS2 after the setoperate time has expired. The start time of theU< stage is selected by means of switch SG1/7,and two alternative values are available.
After the preset operate time t<, a trip signal TS2is delivered by the undervoltage stage. The set-ting range of the operate time is selected withswitch SG1/8.
To avoid unwanted operations, for instanceduring an auto-reclose sequence, starting andtripping of the undervoltage stage can be blockedby turning switch SG1/6 into the position 1.The blocking function is activated if the meas-ured signal falls to a value below 0.2 x Un. Thisfunction is illustrated in Fig. 1.
Fig. 1. Operation of the combined overvoltage and undervoltage relay module SPCU 3C14 whenthe function of the undervoltage stage is internally blocked (SG1/6 = 1).
Tripping (TS2) of the U< stage alone, may beblocked by applying a blocking signal BTS2 onthe stage. The blockings are programmed indi-vidually for the various relay assemblies by meansof the switchgroup SGB on the relay module.
Programming instructions for the SGB switch-group are given in the user's manual of theconcerned protection relay unit. Also see thesignal diagram of the concerned protection relayunit.
4
Block diagram
Fig. 2. Block diagram for combined overvoltage and undervoltage relay module SPCU 3C14.
U12, U23, U31 Measured phase-to-phase voltagesBS1, BS2, BS3 Blocking signalsBTS2 Blocking of the tripping of the U< stageSG1 Front panel programming switchgroupSG2 Software selector switchgroup for defining the mode of function of the
start and operation indicatorsSGB Selector switchgroup for configuration of blockings (on the PC-board)SS1 Start signal of the U> stageTS1 Trip signal of the U> stageSS2 Start signal of the U< stageTS2 Trip signal of the U< stageY Yellow indicatorR Red indicator
NOTE!All input and output signals of the relay moduleare not necessarily wired to the terminals ofevery protection relay unit including the over-voltage and undervoltage relay module.
The signals wired to the terminals are shown inthe signal diagram of the concerned protectionrelay unit, see user's manual.
5
Front panel
Fig. 3. Front panel of the combined overvoltage and undervoltage relay module SPCU 3C14.
12 IRF
>U
23U 31UU
1315
[ ]sk
>t0.5
0.05 1.0
0.8
0.4
5.0
1.0 12
0.8
1.2
1.6
STEP
RESET
SG1
0 1
12345678
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SPCU 3C14
B
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STEP
Indicators for measured voltages
Setting knob and indicator forstarting value of stage U>
Setting knob and indicator foroperate time t> or time multiplier k>of stage U>
Setting knob and indicator forstarting value of stage U<
Setting knob and indicator foroperate time t< of stage U<
Simplified module symbol
Self-supervision alarmindicator
Numerical display
Display step push-button
Selector switchgroup SG1
Indicator for switchgroupsSG1, SG2 and SG3
Reset push-button
Operation indicatorsType designation ofthe relay module
Start andoperationindicators
Each stage has its own yellow/red operationindicator. Yellow light indicates starting of theoperation stage and red light indicates that thestage has delivered a tripping signal.
The four LED indicators can, independently ofone another, be given self-reset or manual resetmode of operation with switches in switchgroupSG2. The manual reset mode means that theindicator remains lit after being switched on,although the stage, which controls the indica-tor, resets. If, for instance, the yellow startindicator has been given self-reset mode ofoperation and the red operation indicatormanual-reset mode of operation, the yellowindicator is lit, when the stage starts and it turnsred if the stage operates. When the stage resetsafter operation the red indication remains lit. Ifthe stage starts but does not operate the yellowindicator is lit during the starting and resetautomatically when the stage resets. The indica-tors, which have been given the manual reset
mode, are reset locally by pushing the RESETpush-button on the front panel or by remotecontrol over the SPA bus using the commandV101 or V102. See also table (for switchgroupSG3) on page 7 in chapter "Selector switches".
An unreset operation indicator does not affectthe protective functions of the relay module.The relay module is constantly operative, re-gardless of the indicators have been reset or not.
The self-supervision alarm indicator IRF indi-cates that the self-supervision system has de-tected a permanent fault. The indicator is litwith red light shortly after a permanent internalfault has been detected. At the same time acontrol signal is put forward to the output relayof the self-supervision system. Additionally, inmost fault cases, a fault code indicating type offault appears on the display of the relay module.The fault code is to be recorded to serve thesubsequent fault location and repair actions.
6
Settings The setting values are shown by the threerightmost green digits of the display. The LEDindicator below the setting knob shows, when
lit, the setting value currently being shown onthe display.
U>/Un Start value of the U> stage as a multiple of the rated voltage of the relay energizinginput. Setting range 0.8...1.6 x Un.
t> [s] Operate time of the U> stage, expressed in seconds, at definite time mode of k>operation. The required setting range, 0.05...1.00 s, 0.5...10.0 s or 5...100 s, is selectedwith switches SG1/4 and 5. At IDMT mode of operation the setting range of themultiplier k> is 0.05...1.00.
U</Un Start value of the U< stage as a multiple of the rated voltage of the relay energizinginput. Setting range 0.4...1.2 x Un.
t< [s] Operate time of the U< stage expressed in seconds. The setting range is selected withswitch SG1/8, alternatives 1...12 s and 10...120 s.
Further, the checksum of the programmingswitchgroup SG1 is indicated on the displaywhen the indicator under the switchgroup isglowing. In this way a check can be made to prove
that the switches have been set and that theywork properly. An example of calculating thechecksum is given in the description "Generalcharacteristics of C-type relay modules".
Selector switches(Modified 99-12)
When the module has been given single-phaseoperation, only U12 is measured. Additionalrelay functions required in various applicationsare selected by means of the selector switches of
switchgroup SG1 located on the front panel ofthe relay module. The numbering of the switches,1...8, and the switch positions, 0 and 1, aremarked on the front panel.
Switch Function
SG1/1 Selection of three-phase or single-phase operation.
Three-phase operation when SG1/1 = 0.Single-phase operation when SG1/1 = 1.
SG1/2 Start time selection for the overvoltage stage U>.
When SG1/2 = 0, the start time is 0.1 s.When SG1/2 = 1, the start time is 30 s.
SG1/3 Selection of definite time or IDMT mode of operation for the U> stage. At definiteSG1/4 time mode of operation switches 4 and 5 are used for selecting the setting range of theSG1/5 operate time t>. At IDMT mode of operation switch 4 is used for selecting the inverse
time curve, switch 5 has no function.
SG1/3 SG1/4 SG1/5 Mode of Operate time t> oroperation characteristic curve
0 0 0 Definite time 0.05...1.00 s0 0 1 Definite time 0.5...10.0 s0 1 0 Definite time 0.5...10.0 s0 1 1 Definite time 5...100 s1 0 0 Inverse time Curve A1 0 1 Inverse time Curve A1 1 0 Inverse time Curve B1 1 1 Inverse time Curve B
7
Switch Function
SG1/6 Selection of automatic blocking of starting and tripping of the undervoltage stage U<.
When SG1/6 = 0, the undervoltage stage always operates when a measured voltage fallsbelow the setting value.When SG1/6 = 1, starting and tripping of the undervoltage stage are blocked if one ofthe measured voltages, falls to a value below 0.2 x Un.
This feature can be used for preventing unnecessary startings and trippings duringauto-reclose sequences.
SG1/7 Start time selection for the undervoltage stage U<.
When SG1/7 = 0, the start time is 0.1 s.When SG1/7 = 1, the start time is 30 s.
SG1/8 Selection of the setting range for the operate time t< of the undervoltage stage U<.
When SG1/8 = 0, the setting range of the operate time is 1.0...12.0 s.When SG1/8 = 1, the setting range of the operate time is 10...120 s.
Switchgroup SG2 is a so called software switch-group, which is located in the third submenu ofthe checksum register of switchgroup SG1. Themode of operation, i.e. self-reset or manuallyreset, of the LED indicators U> and U< isdetermined by the switches of switchgroup SG2.
The mode of operation can be separately set foreach indicator. The mode of operation is set bymeans of the checksum, which can be calculatedfrom the following table. Normally the startindications are self-reset and the operation indi-cations manually reset.
Indicator Manually reset Factory default
Start indicator U> 1 0Operation indicator U> 2 2Start indicator U< 4 0Operation indicator U< 8 8
Checksum 15 10
Switchgroup SG3 is a so called software switch-group, which is located in the fourth submenuof switchgroup SG1. The front panel push-
buttons STEP and RESET can be programmedwith switch SG3/1. Switches SG3/2…8 are notin use. The default value for SG3 is 0.
SG3/1 Push-button Clear start/trip LED's Erase memorized values
STEP0 RESET x
STEP & RESET x x
STEP x1 RESET x
STEP & RESET x x
The PC-board of the relay module contains aswitchgroup SGB with eight switches. Theswitches 1...3 are used for configuring the startsignals going from the module, whereas theswitches 5, 7 and 8 are used for configuring theblocking signals applied on the undervoltage
stage in various protection relay units. Switches4 and 6 have no function in the relay moduleSPCU 3C14. Instructions for setting the switch-group SGB are given in the user's manual of theprotection relay unit and in the signal diagramof the relay.
8
Measured data The measured values are presented with therightmost three green digits on the display. The
data being presented are indicated by LEDindicators on the front panel.
Indicator Measured data
U12 The U12 voltage measured by the module expressed as a multiple of the rated voltageof the relay energizing input.
U23 The U23 voltage measured by the module expressed as a multiple of the rated voltageof the relay energizing input.
U31 The U31 voltage measured by the module expressed as a multiple of the rated voltageof the relay energizing input.
Recordedinformation
The leftmost red digit on the display indicatesthe register address and the three rightmostdigits the recorded information.
Register/ Recorded informationSTEP
1 The highest voltage value measured during the start sequence as a multiple of therated voltage of the relay energizing input. Any overvoltage stage start erases the oldvalue and starts a new recording sequence. The recording sequence is stopped onoperation of the overvoltage stage and the highest value during the start sequence isfound in the register.
2 The highest voltage value measured as a multiple of the rated voltage of the relayenergizing input. The register value is updated as soon as the measured value exceedsthe value alredy in the register. Register 2 is erased with a command via the serial portor by pushing the STEP and RESET push-buttons simultaneously. The registeredvalue is also erased on loss of auxiliary supply.
3 The lowest voltage value measured during the start sequence as a multiple of the ratedvoltage of the relay energizing input. Any undervoltage stage start erases the old valueand starts a new recording sequence. The recording sequence is stopped on operationof the undervoltage stage and the lowest value during the start sequence is found inthe register.
4 The lowest voltage value measured as a multiple of the rated voltage of the relayenergizing input. The register value is updated as soon as the measured value fallsbelow the value already in the register. Register 4 is erased with a command via theserial port or by pushing the STEP and RESET push-buttons simultaneously. Theregistered value is also erased on loss of auxiliary supply.
5 Number of starts of the overvoltage stage, n (U>) = 0...255.
6 Number of starts of the undervoltage stage, n (U<) = 0...255.
7 Duration of the latest start event of the overvoltage stage, expressed as a percentageof the set operate time t>, or, at IDMT mode of operation, of the calculated operatetime. A new start resets the counter which starts recounting from zero. If the stagehas tripped, the counter reading is 100.
8 Duration of the latest start event of the undervoltage stage, expressed as a percentageof the set operate time t<. A new start resets the counter which starts recounting fromzero. If the stage has tripped, the counter reading is 100.
9
Register/ Recorded informationSTEP
0 Display of blocking signals and other external control signals. The digit at theextreme right indicates the state of the blocking of the undervoltage stage.The following states are indicated:0 = no blockings2 = tripping of the undervoltage stage blocked
The middle digit of the register is always a zero. The leftmost green digit indicatesthe state of the remote reset input, if any.The following states are indicated:0 = remote reset control input not energized1 = remote reset control input energized
From this register it is possible to move on to the TEST mode, where the starting andtripping signals of the module can be activated one by one. For further details see thedescription "General characteristics of C-type relay modules".
A The address code of the measuring relay module, required by the serial communi-cation system.
Submenu 1: Selection of the data transfer rate.
Submenu 2: Bus traffic monitor. If the relay module is connected to a datacommunication system and the communication is operating, the counter reading ofthe bus traffic monitor will be 0. Otherwise the numbers 0...255 are continuouslyrolling in the counter.
Submenu 3: Password required for remote setting. The password given in the settingmode of a submenu must always be entered via the serial communication before thesettings can be altered remotely.
When the display is dark, the register can be re-entered by pressing the STEP push-button.
The registers 1...8 are cleared by pressing thepush-buttons STEP and RESET simultaneouslyor via the SPA bus with the command V102.The registers are also cleared if the auxiliarypower supply to the module is interrupted. Theaddress code of the relay module, the datatransfer rate of the serial communication system
and the password of the module are not affectedby voltage failures. The instructions for settingthe address and the data transfer rate are given inthe manual "General characteristics of C-typerelay modules".
At the initial state when none of the stages hasstarted, the reading of register 1 is "000" andthat of register 3 is "– – –"
10
Menu chart
Display off. Normal state
21
Remotely setvalue t< x p4
Set operate time t< of stage U< 21
Checksum of switchgroup SG1
Remotely setpercentage p4
1
Set start voltage U<
Set operate time t> or time multiplier k of stage U>
SUBMENUSTEP FORWARD 1 sSTEP BACKWARD 0,5 s
MAIN MENU SUBMENU
STEP 0,5 s RESET 1 s
1
2
Max. voltage measured during the last start of U>1
Voltage U12 measured
Voltage U23 measured
Voltage U31 measured
Set start voltage U>
2 Remotely setchecksum1 Remotely set
checksum 3 Checksum of switchgroup SG2
2
Remotely setvalue U< x p3
Remotely setvalue U> x p1
Remotely setpercentage p3
Remotely setpercentage p2
Remotely setpercentage p1
Max. voltage measured after reset2
3
Min. voltage measured after reset
5
4
Min. voltage measured during the last start of U<
Number of starts of overvoltage stage
Remotely setvalue t> x p2
Incomingblockings0
A
0 000
1
SS1 TS1 TS2IRF SS2
2 3
= parameter that can be set in the setting mode
6
Duration of the latest start event of stage U>
8
7
Number of starts of undervoltage stage
Duration of the latest start event of stage U<
STEP
BACKWARD
.5s
STEP FORWARD
1s
MAIN MENU
Relay module address code
Data transfer rate (Bd)
Bus communication monitor 0 ... 255
Password
4 Checksum of switchgroup SG3
Fig. 4. Main menus and submenus of the combined overvoltage and undervoltage relay moduleSPCU 3C14.
The procedure for entering a submenu or a set-ting mode and configuring the module is de-
scribed in detail in "General characteristics ofC type relay modules".
11
Voltage/timecharacteristic(Modified 99-10)
At inverse time characteristic the operate timeof the overvoltage stage will be shorter thegreater the deviation from the setting value.
The operation of the U> stage is based on inversetime characteristic, when the selector switchSG1/3 on the front panel is in position 1. Therelationship between time and voltage at inversetime characteristic can be expressed as follows:
t = + c (b x - 0.5)
where t = operate time [s]k> = time multiplierU = measured voltage [V]U> = set start voltage [V]a = constant 480b = constant 32c = constant 0.035p = constant
At an IDMT mode of operation the recording ofthe tripping time of the overvoltage stage doesnot start until the voltage exceeds the settingvalue by 6%. The operating time accuracy statedin the technical data applies when the voltageexceeds the setting value by 10%. The overvoltagestage includes two characteristics with differentinversities. The characteristic is selected withthe programming switch SG1/4. The degree ofinversity is determined by the factor p as follows:
Characteristic p (constant)
A 2B 3
k> x a
1000
100
1 0
1
0,1
0,011,1 1,2 1,3 1,4 1,5 U/U>
0,05
0,2
0,4
0,71,0
k>
t / s
1,0
Fig. 5. Characteristic curve set A of overvoltage stage U>.
U - U>U>
p
12
0,050,20,40,71,0
k>
U/U>1,51,41,31,21,11,00,01
0,1
1
1 0
100
1000
t / s
Fig. 6. Characteristic curve set B of overvoltage stage U>.
Technical data Overvoltage stage U>Start voltage U> 0.8...1.6 x UnStart time 0.1 s or 30 sOperate time at definite time mode of operation 0.05...1.00 s, 0.5...10.0 s or 5...100 sTime multiplier k> at inverse time characteristic 0.05...1.00Reset time, typically 60 msDrop-off/pick-up ratio, typically 0.97Operate time accuracy at definite timemode of operation and start time accuracy ± 2% of set value or ± 25 msOperate time accuracy at inverse time characteristic ± 25 ms or the inaccuracy appearing
when the measured voltage varies ± 3%Operation accuracy ± 3% of set value
Undervoltage stage U<Start voltage U< 0.4...1.2 x UnStart time 0.1 s or 30 sOperate time at definite time characteristic 1...12 s or 10...120 sReset time, typically 60 msDrop-off/pick-up ratio, typically 1.03Operate time accuracy and start time accuracy ± 2% of set value or ± 25 msOperation accuracy ± 3% of set value
13
Serialcommunicationparameters
Event codes
The substation level control data communica-tor is able to read, over the SPA serial bus, theevent data of the module, e.g. starting andtripping, from the over-/undervoltage relaymodule SPCU 3C14. Event information calledfor are printed out in the format: time (ss.sss)and event code. The event codes of the moduleare E1...E8, E50 and E51. Furthermore, thesubstation level control data communicator isable to form event codes relating to e.g. the datacommunication.
The codes E1...E8 and the events represented bythese can be included in or excluded from theevent reporting by writing, over the SPA bus, aso called event mask (V155) to the module. Theevent mask is a binary number coded to adecimal number. The event codes E1...E8 are
represented by the numbers 1, 2, 4...128. Theevent mask is formed by multiplying abovenumbers either by 0 (event not included inreporting) or 1 (event included in reporting)and adding up the numbers received (comparecalculation of checksum).
The event mask may have a value in the range0...255. The default value of the over-/under-voltage relay module SPCU 3C14 is 85, whichmeans that all startings and trippings are in-cluded in the reporting, but not the resetting.The codes E50...E54 and the events representedby these cannot be excluded from the reporting.
Event codes for over-/undervoltage relay mod-ule SPCU 3C14:
Code Event Weighting Defaultcoefficient setting
E1 Starting of overvoltage stage U> 1 1E2 Starting of overvoltage stage U> reset 2 0E3 Tripping of overvoltage stage U> 4 1E4 Tripping of overvoltage stage U> reset 8 0E5 Starting of undervoltage stage U< 16 1E6 Starting of undervoltage stage U< reset 32 0E7 Tripping of undervoltage stage U< 64 1E8 Tripping of undervoltage stage U< reset 128 0
Default value of event mask V155 85
E50 Restart of microprocessor * -E51 Overflow of event register * -E52 Temporary interruption in data communication * -E53 No response from the relay module over the data
communication bus * -E54 The module responds again over the data
communication bus * -
0 not included in event reporting1 included in event reporting* no code number, always included in event reporting- cannot be set
NOTE!In the SPACOM system the event codes E52...E54 are generated by the station level controldata communicator, e.g. type SRIO 1000M.
14
Data to betransferred overthe serial bus(Modified 99-12)
In addition to the event code data transfer, theinput data (I data), output data (O data), set-ting values (S), memorized data (V data) andsome other data can be read from the relay
module over the serial communication bus.Further, part of the data can be changed overthe SPA bus by separate commands. All datainformation is available in channel 0.
Data Code Data Valuesdirect.
Measured voltage U12 I1 R 0...9.99 x UnMeasured voltage U23 I2 R 0...9.99 x UnMeasured voltage U31 I3 R 0...9.99 x UnBlocking of tripping of under- I4 R 0 = no blockingvoltage stage 1 = tripping of stage U<
blocked
Starting of overvoltage stage U> O1 R 0 = U> stage not started1 = U> stage started
Tripping of overvoltage stage U> O2 R 0 = U> stage not tripped1 = U> stage tripped
Starting of undervoltage stage U< O3 R 0 = U< stage not started1 = U< stage started
Tripping of undervoltage stage U< O4 R 0 = U< stage not tripped1 = U< stage tripped
Activated start value for stage U> S1 R 0.8...1.6 x UnActivated operate time t> or time S2 R 0.05...100 s ormultiplier k for stage U> 0.05...1.00Activated start value for stage U< S3 R 0.4...1.2 x UnActivated operate time for stage U< S4 R 1...120 sActivated checksum of switch- S5 R 0...255group SG1
Start value for stage U>, S11 R 0.8...1.6 x Unset with the setting knobOperate time or time multiplier for S12 R 0.05...100 s orstage U>, set with the setting knob 0.05...1.00Start value for stage U<, S13 R 0.4...1.2 x Unset with the setting knobOperate time for stage U<, S14 R 1...120 sset with the setting knobChecksum of switchgroup SG1 S15 R 0...255(set with the switches)
Remote setting percentage of the S21 R, W 0...999%start value for stage U>Remote setting percentage of S22 R, W 0...999%operate time or time multiplierfor stage U>Remote setting percentage of S23 R, W 0...999%start value for stage U<Remote setting percentage of S24 R, W 0...999%operate time for stage U<Remotely set checksum of S25 R, W 0...255switchgroup SG1
15
Data Code Data Valuesdirect.
Remotely set start value for stage U> S31 R 0.8...1.6 x UnRemotely set operate time or time S32 R 0.05...100 s ormultiplier for stage U> 0.05...1.00Remotely set start value for stage U< S33 R 0.4...1.2 x UnRemotely set operate time for stage U< S34 R 1...120 sRemotely set checksum of S35 R 0...255switchgroup SG1
Max. voltage measured when V1 R 0...9.99 x Unstage U> startedMax. voltage measured after resetting V2 R 0...9.99 x UnMin. voltage measured when V3 R 0...9.99 x Unstage U< startedMin. voltage measured after resetting V4 R 0...9.99 x UnNumber of starts of overvoltage stage V5 R 0...255Number of starts of undervoltage stage V6 R 0...255Duration of the latest start V7 R 0...100%event of stage U>Duration of the latest start V8 R 0...100%event of stage U<
Resetting of output relays and V101 W 1 = output relays and operationoperation indicators indicators resetResetting of output relays, operation V102 W 1 = output relays, operationindicators and erasing of recorded data indicators reset and registerssimultaneously (codes V1…V8) erased
Remote control of settings V150 R, W 0 = setting with knobsS11...S15 activated
1 = remote settingsS31...S35 activated
Event mask word V155 R, W 0...255, see section"Event codes"
Manual reset or self-reset mode of V156 R, W 0…15, see sectionoperation of the LED indicators (SG2) "Selector switches"Programming push-buttons (SG3) V157 R, W 0…1, see section
"Selector switches"
Opening of password for V160 W 1...999remote settingsChanging or closing of password V161 W 0...999for remote settings
Activation of self-supervision function V165 W 1 = self-supervision output isactivated and IRF indicatorturns on in about 5 seconds,whereafter the self-super-vision system and the IRFindicator reset
Internal fault code V169 R 0…255
Data communication address V200 W 1...254of the relay module
Program version V205 R 072_
16
Data Code Data Valuesdirect.
Type designation of the relay module F R SPCU 3C14
Reading of event register L R Time, channel numberand event code
Re-reading of event register B R Time, channel numberand event code
Reading of module status data C R 0 = normal state1 = module been subject
to automatic reset2 = overflow of event register3 = events 1 and 2 together
Resetting of module status data C W 0 = resetting
Time reading or setting T R, W 00.000...59.999 s
R = data to be read from the moduleW = data to be written to the module
The data transfer codes L, B, C and T have beenreserved for the event data transfer between therelay module and the control data communi-cator.
The event register can be read by the L com-mand only once. Should a fault occur, for ex-ample, in the data transfer, it is possible, by us-ing the B command, to re-read the contents ofthe event register once already read by means ofthe L command. When required, the B com-mand can be repeated.
The setting values S1...S5 are the alerted setvalues currently used by the protection relaymodule. These values are set either by remotecontrol or by means of the setting knobs. Thevalues S11...S15 are set with the setting knobsand the selector switches. Variables S21...S25are set as percentage values via remote control.
The settings S21...S25 allow reading or writ-ing. A condition for writing is that the pass-word V160, for remote setting has been opened.The variables S31...S35 contain the remote set-ting values.
When the values of the variables S21...S24 areto be changed, the variables can be given a per-centage factor within the range 0...999. It ispossible to alter a setting value beyond the set-ting ranges specified in the technical data of therelay module. However, the validity of the set-ting values are guaranteed only within the set-ting ranges specified in the technical data.
Activation of the self-supervision function(V165) prevents the relay module from operat-ing as long as the self-supervision output is ac-tivated and the IRF indicator is lit.
17
Fault codes Once the self-supervision system has detected apermanent relay fault, the IRF LED on the frontpanel of the module is lit, and at the same timethe normally operated signal relay of the self-supervision system drops off.
In most fault situations an auto-diagnostic faultcode is shown on the relay display. The faultcode cannot be reset. The fault code consists of
a red digit one (1) and a green code numberthat indicates the fault type. The fault codeshould be recorded and stated when service isordered.
The fault codes of the over-/undervoltage relaymodule SPCU 3C14 are explained in the fol-lowing table:
Fault code Explanation
4 Faulty output relay path or missing output relay card30 Faulty program memory (ROM)50 Faulty working memory (RAM)
195 Too low a value in reference channel with multiplier 1131 Too low a value in reference channel with multiplier 5
67 Too low a value in reference channel with multiplier 25203 Too high a value in reference channel with multiplier 1139 Too high a value in reference channel with multiplier 5
75 Too high a value in reference channel with multiplier 25253 No interruptions from the A/D-converter
1MR
S 7
5129
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