instruction manual of recloser controller_r-200

RECLOSER CONTROLLERfor Distribution Automation

(Model Name : FTU – R200)

JIN KWANG E & CORPORATION

705, Buk-ri, Namsa-myun, Yongin, Kyunggi-do, Korea Tel +82-31-333-3444

Fax +82-31-332-5300, 5301

Website http://www.jinkwang.co.kr

E-mail [email protected]

www.jinkwang.co.kr 2 / 111

ISO 9001 certified Recloser controller FTU- R200

CONTENTS

1. OVERVIEW ................................................................................................................................................................................................. 8

1.1. Protection of Distribution Lines ........................................................................................................... 8

1.2. Function of Automatic Circuit Recloser ............................................................................................ 8

1.3. Main Features of FTU-R200 ................................................................................................................... 9

2. Technical Data ....................................................................................................................................................................................... 12

2.1.1. Digital Processor ....................................................................................................................................... 12

2.1.2 Dual Processor Architecture ............................................................................................ 12

2.1.2Analog/Digital Conversion ......................................................................................................... 12

2.1.3. DSP ..................................................................................................................................... 13

2.1.4. CPU .................................................................................................................................... 13

2.1.5. Functional Block Diagram ................................................................................................ 14

2.2. Environmental Conditions ..................................................................................................................... 14

2.3. Inputs/Outputs .......................................................................................................................................... 15

2.4. Measurement ............................................................................................................................................. 17

2.4.1. Current ................................................................................................................................ 17

2.4.2. Voltage ............................................................................................................................... 17

2.4.3. Power ................................................................................................................................. 18

2.4.4. Power Factor ..................................................................................................................... 18

2.4.5. Frequency .......................................................................................................................... 18

2.4.6. Energy ................................................................................................................................ 18

2.4.7. Harmonic ........................................................................................................................... 18



2.4.8. Demand Current and Power ............................................................................................ 19

2.5. Communication ......................................................................................................................................... 19

2.5.1. Physical Layer .................................................................................................................... 19

2.5.2. Protocol for scada ............................................................................................................ 19

2.6. Recording ..................................................................................................................................................... 20

2.6.1. Event Recorder .................................................................................................................. 20

2.6.2. Waveform Event Recorder ............................................................................................... 21

3. Construct and External Connection ............................................................................................................................................. 22

3.1. Appearance & Dimension .................................................................................................................... 22

3.2. Connector .................................................................................................................................................... 24

4. Front Panel Operations ..................................................................................................................................................................... 25

4.1. Button & LED Description .................................................................................................................... 26

4.1.1. LCD Display ....................................................................................................................... 26

4.1.2. FTU Status ......................................................................................................................... 26

4.1.3. MENU/UP/DOWN/ENTER Buttons .................................................................................. 26

4.1.4. Serial Port .......................................................................................................................... 26

4.1.5. Ethernet/SCADA/Protection Communication Led ......................................................... 26

4.1.6. Battery Test & Lamp Test ................................................................................................ 27

4.1.7. Reset Button ...................................................................................................................... 27

4.1.8. Function Led ..................................................................................................................... 27

4.1.9. RECLOSE/PROTECTION/GROUND Enable Buttons and LEDS ...................................... 28

4.1.10. REMOTE/CONTROL LOCK Buttons and LEDS ................................................................ 28

4.1.11. SELECT/OPEN/CLOSE Buttons and LEDS ........................................................................ 28

4.2. LCD Manipulation ..................................................................................................................................... 29



4.2.1. LCD Menu ......................................................................................................................... 30

5. Protection Functions .......................................................................................................................................................................... 35

5.1. Fault Detection .......................................................................................................................................... 35

5.1.1 Definite Time Protection ............................................................................................. 36

5.1.2 High Current Trip (HCT) .............................................................................................. 36

5.1.3 Single Shot Operation ................................................................................................. 37

5.1.4 TC Curve .......................................................................................................................... 37

5.1.5 Example of TC Curve Editing ........................................................................................... 39

5.1.6 Auto Reclosing Sequence ........................................................................................... 41

5.1.7 Sequence Coodination ................................................................................................. 43

5.2 Cold Load Pickup ................................................................................................................................. 44

5.3 Sensitive Earth Fault (SEF) Detection .............................................................................................. 45

5.4 Directional Blocking................................................................................................................................. 46

5.5 Inrush Restraints ....................................................................................................................................... 47

5.6 Open Line Detection (Loss Of Phase) .............................................................................................. 47

5.7 Phase Sync. Check .................................................................................................................................... 48

5.8 Under Voltage Protection ..................................................................................................................... 48

5.9 Over Voltage Protection ........................................................................................................................ 49

5.10 Under Frequency Protection ................................................................................................................ 49

5.11 Multiple Protection Groups .................................................................................................................. 50

6 Configuration Setting ......................................................................................................................................................................... 51

6.1 I/O Configuration ..................................................................................................................................... 51



6.1.1 AC Rating .......................................................................................................................... 51

6.1.2 Demand Setting ................................................................................................................ 54

6.1.3 Wave Trigger ..................................................................................................................... 54

6.1.4 Close Interlock .................................................................................................................. 55

6.1.5 FI Reset Select ................................................................................................................... 55

6.1.6 Voltage Display ................................................................................................................. 55

6.2 Power Quality Measurement Funcion ............................................................................................. 55

6.2.1 Voltage & Current Unbalance ......................................................................................... 55

6.2.2 Short-Duration Voltage Variation ................................................................................... 56

6.2.3 Voltage & Current THD Alarm ........................................................................................ 58

6.3 Communication ......................................................................................................................................... 58

6.3.1 Port Parameters ................................................................................................................ 58

6.3.2 DNP3.0 Parameters ........................................................................................................... 60

6.3.3 IEC Parameters .................................................................................................................. 61

7 Status Monitoring & Control .......................................................................................................................................................... 62

7.1 Switch Control............................................................................................................................................ 62

7.2 Switch Status Monitoring ...................................................................................................................... 62

7.3 Battey Monitoring .................................................................................................................................... 63

8 Measurements ....................................................................................................................................................................................... 64

8.1 Basic Electric Quantities ......................................................................................................................... 64

8.2 Sequence Components .......................................................................................................................... 64

8.3 Harmonics .................................................................................................................................................... 65

8.4 Energy ............................................................................................................................................................ 65



8.5 Demand currents and power .............................................................................................................. 66

9 Maintenance Software ....................................................................................................................................................................... 67

9.1 Overview ....................................................................................................................................................... 67

9.2 Operation of FTUMan ............................................................................................................................ 68

9.2.1 Menu .................................................................................................................................. 68

9.2.2 Toolbar .............................................................................................................................. 70

9.2.3 Statusbar ............................................................................................................................. 71

9.2.4 Monitoring bar ................................................................................................................... 71

9.2.5 Function and configuration Setting ................................................................................. 71

9.2.6 Event .................................................................................................................................. 74

9.2.7 Measurement .................................................................................................................... 82

9.2.8 Status ................................................................................................................................. 88

9.2.9 Waveform .......................................................................................................................... 89

10 I/O Configuration Tool ...................................................................................................................................................................... 91

10.1 Overview ....................................................................................................................................................... 91

10.2 Operation of IOConfig .......................................................................................................................... 92

10.2.1 Menu .................................................................................................................................. 93

10.2.2 Toolbar .............................................................................................................................. 93

10.2.3 Input ................................................................................................................................... 94

10.2.4 Output ............................................................................................................................... 95

11 DNP3.0 Index Configuration Tool ................................................................................................................................................ 96

11.1 Overview ....................................................................................................................................................... 96

11.2 Operation of DNPConfig...................................................................................................................... 97



11.3.1 Menu .................................................................................................................................. 98

11.3.2 Toolbar .............................................................................................................................. 99

11.3.3 Configuration Tool Box .................................................................................................. 100

11.3.4 Binary Input ..................................................................................................................... 100

11.3.5 Binary Output .................................................................................................................. 102

11.3.6 Analog Input ................................................................................................................... 103

11.3.7 Counter ............................................................................................................................ 105

12 Waveform Evaluation Tool............................................................................................................................................................ 107

12.1 Overview .................................................................................................................................................... 107

12.2 Operation of EvalTool ........................................................................................................................ 108

12.2.1 Menu ................................................................................................................................ 109

12.2.2 Toolbar ............................................................................................................................. 110



1. OVERVIEW

1.1. PROTECTION OF DISTRIBUTION LINES

Distribution lines have their own equipment outdoors, the types of loads are various, and the

configurations of the networks are flexible and complicated. There are many kinds of fault causes

such as direct contact of trees or birds, natural phenomenon of lightning or heavy snow, and fault

spread-out due to customer’s facilities. Among these faults, most of faults are temporary and the

dominant fault type is ground-fault.

For rapid fault detection and fault section isolation, blackout area minimization, many protection

devices such as Recloser, Sectionalizer, and Line Fuse are adopted. Among these devices,

Automatic Circuit Recloser is the most important protection device, whose main functions are fault

current trip and auto-reclosing.

One distribution line has over 2 Reclosers of serial connections or Recloser – Sectionalizer - Line

Fuse of serial connections. This configuration is the concept of Primary Protection and Back-up

Protection. In other words, protection coordination is required in the way that a protection device

nearer to fault point operates first to eliminate the fault and other devices farther from fault point

are configured to operate later with time delays.

1.2. FUNCTION OF AUTOMATIC CIRCUIT RECLOSER

When a fault occurs on the load side of Recloser installed location, Recloser detects fault current,

trips fault current at high speed, and does reclosing actions after the set time to re-activate the

faulted section. In case of temporary fault, the fault can be removed by itself according to high-

speed trip and dead time before reclosing actions. But, in case of permanent fault, because fault

current is still detected after trip and reclosing actions of pre-set counts, Recloser is locked out

finally as opened.

Recloser has the time delay element in protection function of its controller and can be freely

configured for protection coordination with other protection devices.



1.3. MAIN FEATURES OF FTU-R200

Recloser body is connected serially to distribution line to operate open / close of the line, and

Recloser Controller is in charge of measurements of currents, voltages, and other electric values,

protection, control, status monitoring, recording, and communication.

FTU-R200 is a kind of IED’s (Intelligent Electronic Device) for power system automation, which is

a fully digitalized and microprocessor-based control device, and through connecting with this

control device, Recloser can play a role of automated protection device.

Main features of FTU-R200 are as follows,

Measurements

Magnitude and phase angle of voltages & currents(Fundamental frequency)

Sequence components of 3-Phase voltages & currents

True RMS, Harmonics and THD of voltages & currents

Active, reactive and apparent power for each phase and 3-phase

Energy(4-quadrant metering)

Displacement Power Factor

Frequency

PQM, Fault, THD Counter

Phase difference between source-side and load-side voltage

Control

Manual Recloser Open/Close at local or remote(Select Before Operation)

Interlocking(Gas low, Handle lock, Operator place, Sync Fail, Live Load)

Batter Test

External Trip and Close By contact input(Optional)

Enable or disable reclosing, protection and Ground function



Protection

3-stage over current protection

Fast and Delayed TC trip elements for phase and earth fault

54 types of built-in TC Curves and 4 Customized TC Curves

Definite time over-current element

Definite time HCT(High Current Trip)

SEF(Sensitive Earth Fault) Detection

Auto-Reclosing(up to 4 shots)

Cold Load protection(Pickup Adjustment)

Magnetizing Inrush Restraints

Sequence Coordination

Open Line Detection

Phase Sync. Fail Detection

Over Voltage, Under Voltage

Under Frequency

Status Monitoring

10 Contact Inputs

Open Line Detection

Fault Indication

Recloser, Protection, Ground Protection, Switch Open/Closed

Over Voltage, Under Voltage, Under Frequency

Handle Locked

Gas Pressure Low

External AC Power Loss

Battery Discharged

Enclosure Door Open

Spare (3 Points : Optionally external trip and close command)



Event Recording

Event recording with time-stamp

I/O, Functional, System, Fault Current, Demand Current & Power,

Daily Max Current & Power

Waveform Recording

8 Fault Waveforms

8 PQM Waveforms

1 Manual Trigger Waveform

128 samples/cycle, 20 cycles

Saving COMTRADE File Format

Counter

FTU Restart count

Switch Trip Count

Fault Detection Count

PQM Count

THD Count

Communication Protocols

SCADA Port

DNP3.0

DNP3.0 over TCP/IP

IEC60870-5-101

IEC60870-5-104

Maintenance Port Modbus-RTU



2. TECHNICAL DATA

2.1.1. DIGITAL PROCESSOR

2.1.2 DUAL PROCESSOR ARCHITECTURE

32-bit RISC type micro-controller with on-chip flash program memory

32-bit floating-point Digital Signal Processor

Dual-Port Memory for communication between two processors

Data Memoty(SRAM)

Non-volatile Memory(1Mbytes) for storing events and parameters

Flash Mamory for stroring fault and PQM Waveforms

Real Time Clock

2.1.2ANALOG/DIGITAL CONVERSION

16-bit A/D Converter

Sampling rate : 128 samples/cycle

Anti-aliasing analog filter

One gain channel for each current input : effective 16-bit resolution for current

measurements



2.1.3. DSP

Correction of analog input error

Fast Fourier Transform : phasor calculation

Electric quantities calculation & Fault Decision

2.1.4. CPU

Status monitoring & Control Command

Local Human-Machine Interface

Event Recording

Remote Communication(DNP3.0, IEC60870-5-101 and IEC60870-5-104)

Self Diagnosis



2.1.5. FUNCTIONAL BLOCK DIAGRAM

Figure 2-1 Functional Block Diagram

2.2. ENVIRONMENTAL CONDITIONS

Altitude < 2,000m

Wind Speed < 40m/s

Ambıent Temporature - 25 ~ +70°C, KSC 0220/1

Storage Temporature - 40 ~ +85°C

Humidity < 95%RH



Dielectric withstand IEC 60255-5, 2kV

Impulse voltage IEC 60255-5, 6kV for current input circuit

IEC 60255-5, 4kV for voltage, power input & Contacts I/O

Insulation resistance IEC 60255-5, >500MΩ (DC500V)

High frequency disturbance IEC 61000-4-12 class 3 (2.5kV)

Fast transient noise IEC61000-4-4 class 4 (4kV)

Radio frequency noise IEC 61000-4-3 10V/m

Vibrations IEC 60255-21-1 class 2

Mechanical Shock IEC 60255-21-2 class 2

Enclosure protection IP54

2.3. INPUTS/OUTPUTS

Binary Contacts Input : 10 Points

DC 24V Baised in the control box

Opto-isolation(Viso) : 2,000 Vrms

Delay time setting(10~500ms) for each contact input to suppress bouncing

Signal

Recloser Open

Recloser Closed

Recloser Locked

Gas Pressure Low

External AC Power Fail

Battery Discharged

Control Box Door Open

External Trip Command(Optional)

External Closer Command(Optional)

Spare



Binary Contacts Output : 6 Points

Pulse width of output is variable

Signal & Contact rating

DC24V Aux. Relay Contact

Contact Relay : Switch Open, Close, Battery Test, Spare

PhotoMOS Relay : Switch Open, Close for

Contact Relay Rating

Rated Current

Rated Voltage/Max. Breaking Voltage AC

Max. Breaking Capacity AC

Make Current (Max. 4s at duty cycle 10%)

Dielctring Strength

Coil-Contacts

Open Contact Circuit

Mechnical Life

Operate Time

16A

250Vac/440Vac

4,000VA

30A

5,000Vrms

1,000Vrms

> 30 x 106 operations

typical 7ms

PhotoMOS Relay Rating

Rated Load Current

Rated Load Voltage

I/O isolation Voltage

120mA

350Vac

1,500Vac

Current Input : 4 Channel

12.5A Maximum(external CT Ratio is 1,000:1 normally)

Burden : below than 1VA

3-Phase Current and Neutral Currents

Isolation by auxiliary CT of RTU(Viso) : 2,000 Vrms

Surge Withstand Voltage : 6kV

Signal : Ia, Ib, Ic, In



Voltage Input : 6 Channel

4Vrms at rated Phase Voltages

Burden : below than 0.01VA

Maximum input range : ~200%

Isolation by auxiliary PT of RTU(Viso) : 2,000 Vrms

Surge Withstand Voltage : 4kV

Signal : Va, Vb, Vc, Vr, Vs, Vt

Power Supply Input

DC 24V(DC20~DC29V)

Power Consumption: Max. 15W

2.4. MEASUREMENT

2.4.1. CURRENT

RMS(A) & Phase angle(°) Ia, Ib, Ic, In

Sequence Component I1, I2, I0

True RMS Ia, Ib, Ic

Reading Range 2~12, 500A(External CT Ratio 1,000 : 1)

Accuracy 2~600A ±0.5% or ±1A

600~12,000A ±3%

2.4.2. VOLTAGE

RMS(kV) & Phase angle(°) Va, Vb, Vc, Vr, Vs, Vt

Sequence Component V1s, V2s, V0S, V1L, V2L, V0LS,

True RMS Va, Vb, Vc, Vr, Vs, Vt

Phase Angle Difference(°) ∠Va - ∠Vr

Reading Range 0.1~26kV

Accuracy ±0.5% or ±0.1kV



2.4.3. POWER

Active Power(kW) A-Phase, B-Phase, C-Phase, 3-Phase Total

Reactive Power(kVAR) A-Phase, B-Phase, C-Phase, 3-Phase Total,

Apparent Power(kVA) A-Phase, B-Phase, C-Phase, 3-Phase Total

Reading Range -32767~32767

Accuracy ±1%

2.4.4. POWER FACTOR

A-Phase, B-Phase, C-Phase, 3-Phase Total

Lead/Lag Display

Reading Range 0~1.0

Accuracy ±2%

2.4.5. FREQUENCY

Reading Range 45 ~ 55Hz (System Frequency : 50Hz)

55 ~ 65Hz (System Frequency : 60Hz)

Accuracy ±0.02%

2.4.6. ENERGY

Positive kWh A-Phase, B-Phase, C-Phase, 3-Phase Total

Negative kWh A-Phase, B-Phase, C-Phase, 3-Phase Total

Capacitive Positive kVARh A-Phase, B-Phase, C-Phase, 3-Phase Total,

Capacitive Negative kVARh A-Phase, B-Phase, C-Phase, 3-Phase Total,

Inductive Positive kVARh A-Phase, B-Phase, C-Phase, 3-Phase Total,

Inductive Negative kVARh A-Phase, B-Phase, C-Phase, 3-Phase Total,

Reading Range 0~65535(Rollover)

Accuracy ±2%

2.4.7. HARMONIC

Total Harmonic Distortion (%) 3-Phase Current THD (Ia, Ib, Ic, I3ph)

Source side 3-Phase Voltage THD (Va, Vb, Vc, V3ph)

2nd~31st Harmonic RMS(A, kV) Ia, Ib, Ic, Va, Vb, Vc



2.4.8. DEMAND CURRENT AND POWER

Configurable Demand Interval 5, 10, 15min (Default 15min)

2nd~31st Harmonic RMS(A, kV) Ia, Ib, Ic, Pa, Pb, Pc, P3ph, Qa, Qb, Qc, Q3ph

Daily Max Current and Power are Stored

2.5. COMMUNICATION

2.5.1. PHYSICAL LAYER

2.5.1.1 RS232C

9-Pin Male Connector DCD(1), Rx(2), Tx(3), DTR(4), GND(5)

DSR(6), RTS(7), CTS(8), NC(9)

Speed(Baud Rate) 1200, 2400, 4800, 9600, 19200 BPS

Suppots Modam Control CTS, DCD Signal Timeout Configurable

RTS Off-delay Configurable

Optical Isolation

ESD, Transient Noise Protection

2.5.1.2 RS232C/RS485C

RS232C Mode Rx(2), Tx(3), GND(4), GND(5)CTS(8),

RS485C Mode DATA-(3) DATA+(7)

Speed(Baud Rate) 1200, 2400, 4800, 9600, 19200 BPS

Optical Isolation

ESD, Transient Noise Protection

2.5.1.3 TCP/IP

Ethernet Port 10/100 Base-T

2.5.2. PROTOCOL FOR SCADA

2.5.2.1 DNP3.0

① Support DNP3.0 Subset Level 3

② Class of each point is settable(Using DNP3.0 Index Configuration Tool)



③ Supports multi-frame transmission(multi-frame interval is configurable)

④ Enable/Disable unsolicited message class

⑤ Supports file transfer function for uploading fault waveform and local event history

⑥ Non-transmitted events are stored on non-volatile memory during communication fail

⑦ Event buffer size : Binary Input(254), Analog Input(127), Counter(19)

⑧ Supports direct operate or select befor operate(SBO) for control output

⑨ Supports report by exception for analog values

⑩ Protocol frame monitor was built in FTU(Using data terminal on maintenance connector)

2.5.2.2 IEC60870-5-101

IEC 60870-5-101 is primarily used with relatively slow transmission media on the asynchronous

V.24 interface. The standard promises baud rates of up to 9600 bit/s, with much higher baud rates

(<115200 bit/s) actually being used. X.24/X.27 interfaces with baud rates up to 64000 bit/s, also

part of the standard's description, could not establish themselves and are rarely used.

2.5.2.3 IEC60870-5-104

IEC 60870-5-104 (also known as IEC 870-5-104) is an international standard, released in 2000 by

the IEC (International Electrotechnical Commission). As can be seen from the standard's full

designation 'Network access for IEC 60870-5-101 using standard transport profiles', its application

layer is based on IEC 60870-5-101. IEC 60870-5-104 enables communication between control

station and substation via a standard TCP/IP network. The TCP protocol is used for connection-

oriented secure data transmission.

2.6. RECORDING

2.6.1. EVENT RECORDER

This function is used to verify shortly the operated history or log of FTU in normal operation and

fault situation. Event recording is triggered by power reset, set value change, operation of



protection functions, system error or self-diagnosis, etc., and events can be stored including event

occurred time, measured values of current/voltage and operation description. And, this recording

fuction follows the FIFO (First In First Out) rule. Stored events can be uploaded to and listed on

FTU PC S/W (FTUMan) through RS232C port on front panel.

Event List Sub Items Max.

I/O Events Status change of binary Input/Output 1023

Function Events Operated status of Protection Function 1023

System Events Setting change, Reset, Self Dignosis 255

Fault I Events Latest fault current, phase and time 255

PQM Events Operated status of PQM Function 255

Demand I,P,Q Events Each phase daily average load current, active power

and reactive powe with time

1023

Max. I,P,Q Events Each phase daily Peak load current, active power and

reactive powe with time

1023

2.6.2. WAVEFORM EVENT RECORDER

Fault & PQM waveforms recording function are used to store the measured instantaneous

current/voltage values of pre-fault and post-fault at 128 samples per cycle. Record length, trigger

source and trigger position of pre/post-fault in recorded data are adjustable. The record types are

128 samples * 20 cycles, 64 samples * 40 cycles, 32 samples * 80 cycles, 16 samples * 160 cycles.

According to the purpose, operators can set the fault recording trigger source and trigger

position of pre-fault/post-fault. Trigger position means the percentage position in recorded fault

data, and the pre-fault data are recorded before this point and rest of the data are recorded as the

post-fault after this point. The recorded fault waveforms are also uploaded to FTU PC S/W, and

current/voltage waveforms at fault and protection elements operation can be analyzed with fault

evaluation.

This waveform recording fuction follows the COMTRADE file format rule.



3. CONSTRUCT AND EXTERNAL CONNECTION

3.1. APPEARANCE & DIMENSION

Front panel of FTU-R200 has an operational LCD display, a RS232C port for setting and

maintenance, indicating LED’s, and push buttons.

Figure 3-1 Front Panel Drawing of FTU



The following is the Top-view of FTU-R200 panel.

Figure 3-2 Top View of FTU Panel

The next drawing is Side-view of FTU-R200 panel, and there are measurement module connector,

control module connector, monitoring module connector, power connectors, and RS232 port for

SCADA communication on the right side of FTU panel.

Figure 3-3 Side View of FTU Panel



3.2. CONNECTOR

On the right side of FTU-R200 panel, there are RS232 communication port to SCADA, control

source power connector, DI (Status Monitoring) connector, DO (Control) connector, AI

(Measurement) connectors for Voltage, Current from top to bottom, TCP/IP connector, CAN

connector, and TD connector. RS232C port is DB9 male-type connector.

Figure 3-4 Pin Connectors on the Right Side of FTU-R200



4. FRONT PANEL OPERATIONS

On the front panel, there are LED’s indicating Recloser’s status, function buttons and LED’s,

control buttons and LED’s, LCD & Menu buttons and a RS232C port for maintenance.

Figure 4-1 Front Panel Sheet of FTU-R200



4.1. BUTTON & LED DESCRIPTION

4.1.1. LCD DISPLAY

4 lines * 20 characters LCD is used and through MENU/UP/DOWN/ENTER buttons, operators can

survey all data and corrent set values.

4.1.2. FTU STATUS

These LED’s indicate status of FTU-R200.

CPU Run Normal operation of FTU(CPU OK)

System Error Self-diagnosis Error & Switch Status Trouble

Ext.Power External AC Power is supplied

Battery Fail Battery voltage is low (discharged)

4.1.3. MENU/UP/DOWN/ENTER BUTTONS

These buttons are used to operate FTU in local position. Refer to LCD Manipulation section for

detailed methods.

4.1.4. SERIAL PORT

Engineering tool on PC is connected to this port for maintenance and upgrade. RS232C port for

maintenance is DB9 femail-type connector.

RS232C Rx(2), Tx(3), GND(5), MODE(9)

4.1.5. ETHERNET/SCADA/PROTECTION COMMUNICATION LED

These LED’s indicate status of FTU-R200.

Ethernet Link Ethernet Linking

Ethernet Act Ethernet Active

SCADA Rx Communication data are received

SCADA Tx Transmitting communication data



SCADA RTS Data transmission request

Protection Rx Communication data are received from another FTU by CAN

communication.

Protection Tx Transmitting communication data to another FTU by CAN

communication.

4.1.6. BATTERY TEST & LAMP TEST

To test the battery and charger circuit, push ‘BATTERY TEST’ button. When the test result is fail,

we will see turn on Battery Fail LED.

To test the LED, push ‘LAMP TEST’ button. When test is OK, all of the LEDs are turn on for a

while.

4.1.7. RESET BUTTON

This button is used for Annunciator LED Reset (LED turn off). Annunciator LED represents all the

LED’s related to Protection, Reclosing and Self-diagnosis Error.

4.1.8. FUNCTION LED

LIVE LINE LED’s indicate if the lines to source side and load side are activated or deactivated.

LED’s are on, when the line voltage goes up the set ‘Voltage ON Level’ and LED’s are off, when the

voltage goes down the set ‘Voltage OFF Level’.

Under Voltage LED’s indicate if the voltage reaches under the setting value.

Sync.Fail LED is on, when the phase angle difference between source-side voltage (Va) and load-

side voltage (Vr) is over the setting value. In this case, Close control command should be inhibited.

Fault Indicator LED’s on, when a fault related to each faulted phase occurs. For earth fault of

non-gronded networks, SEF LED is on.

Reclose Ready LED is on, when the reclosing action is normally operated. This represents the

normal stand-by status for reclosing action.



Reclose Progress LED is indicates the status that reclosing action is normally processed

according to the preset tripping and reclosing operation sequences.

Reclose Lockout LED is on, when the reclosing action is locked out to open according to the

operation sequences or the Recloser is opened by the manual control command.

4.1.9. RECLOSE/PROTECTION/GROUND ENABLE BUTTONS AND LEDS

Push the enable buttons and makes the respective LED’s on to fulfill the Reclosing and

Protection functions. These buttons are toggled between Enable and Disable.

RECLOSE ENABLE button enables or disables the Reclosing Function. In disable mode, the

Recloser is locked out right the 1st trip.

PROTECTION ENABLE button enables or disables Phase Fault Detection and Earth Fault

Detection Functions, simultaneously.

GROUND ENABLE button enables or disables Earth Fault Detection Function only.

4.1.10. REMOTE/CONTROL LOCK BUTTONS AND LEDS

To decide the control position to Remote, push REMOTE button and make the LED on. This

button and LED are also toggled between Remote and Local position. But, the manipulation of this

button is possible only in the local for operator’s safety.

CONTROL LOCK button enables or disables the Recloser switching operation. If Control Lock

LED is on, Recloser switch is not operated.

4.1.11. SELECT/OPEN/CLOSE BUTTONS AND LEDS

These buttons are used to locally control (OPEN/CLOSE) the Recloser. Before local control

command, check first if the control position is LOCAL. SELECT button is a two-phase safety &

confirmation check machanism, and this concept is similar to SBO (Select Before Operate) in

communication protocol. To manually and locally control the Recloser, SELECT button shuld be



pushed down to make the corresponding LED on, and this SELECT function can be expanded to

the scheme of Multiple Recloser Control in the future.

SELECT → CLOSE

Push this button to control the Recloser manually to be closed. After closing, normal fault

detection functions are re-performed. In case that Cold Load Pickup function is off or the

load current is below the Cold Load Pickup Level, normal Phase & Ground Fault

Detection is functined.

SELECT→OPEN

Manual open control opens the Recloser and makes the switch locked out to open.

4.2. LCD MANIPULATION

MENU/UP/DOWN/ENTER buttons are used to manipulate the LCD. The following table explains

the common roles of 4 buttons.

Button Description

MENU To toggle between Main Menu Display from Initial Display

To come back to Parent Menu from Child Menu

Be careful, because all the set value changes are canceled

when this button is pushed down during the change of set values

ENTER To select and enter into each menu item

To enter the changed set value and configuration

After entering the changed set value, this button again goes out from

each item to menu tree. (Toggle between menu tree and each menu item)

After changing the set values, be sure to save the changed values

in the Set Value Change Save Menu.

UP To move up the cursor in the menu tree

To increment the set values

The set values are rolled up and UP button at the highest value goes

to the lowest value

DOWN To move down the cursor in the menu tree

To decrement the set values

The set values are rolled down and DOWN button at the lowest value goes

to the highest value



4.2.1. LCD MENU

Figure 4-2 LCD Menu Tree Diagram of FTU-R200

4.2.1.1 INITIAL DISPLAY

[Initial Display] shows up the reclosing status.

< R / C f o r D A S >

S e q u e n c e : 0 [ H O ]

R / C S t a t u s : C L O S E

[ H O ME ]

Figure 4-3 Initial Display

MENU button at [Initial Display] goes to [Main Menu Display]. MENU button toggles between

[Initial Display] and [Main Menu Display].

UP or DOWN button at [Initial Display] goes to [Current / Voltage Measurement Display]. UP /

DOWN button toggles between [Initial Display] and [Current / Voltage Measurement Display].



I a : 0 0 0 0 0 A 0 0 . 0 / 0 0 . 0

I b : 0 0 0 0 0 A 0 0 . 0 / 0 0 . 0

I c : 0 0 0 0 0 A 0 0 . 0 / 0 0 . 0

I n : 0 0 0 0 0 A < A B C . R S T >

Figure 4-4 Current / Voltage Measurement Display

Reclosing Sequence 0, 1, 2, 3 and 4

Total Reclosing Shot 3 Times 0[HO], 1~3[SR], 4[LO]

HO Home

SR Sequence Running

LO Lockout

R/C Status CLOSE/OPEN/TROUBLE (No Status Input)

Current (Ia,Ib,Ic,In) Each Phase Instantaneous Current Value (unit : A)

Voltage (ABC.RST) Source Side Voltage (Va,Vb,Vc) /

Load Side Voltage (Vr,Vs,Vt), (unit : kV)

Diagnosis Fail If diagnosis failure happens, [FAIL] message will

appear in the right side of [HOME] or <ABC.RST>

will change into <FAIL>.

4.2.1.2 MAIN MENU DISPLAY

[ M A I N ME N U ]

1 . F u n c t i o n S e t t i n g

2 . C o n f i g u r a t i o n

3 . D i s p l a y

4 . E v e n t L i s t

Figure 4-5 Main Menu Display

[Main Menu Display] shows up 4 main menu items. And UP & DOWN buttons move up and

down the main menu trees. ‘>’ symbol indicates the cursor position and ENTER button enters into

the selected main menu’s sub items.



4.2.1.3 FUNCTION SETTING

[ S e t t i n g Me n u ]

1 . G r o u p 1

2 . G r o u p 2

3 . G r o u p 3

4 . G r o u p 4

5 . G r o u p S e t t i n g

Figure 4-6 Function Setting

In Function Setting, there are 4 different setting groups and the different setting values can be

stored individually in 4 different setting groups.

After finishing the set value change, when MENU button is pushed to return to [Main Menu

Display], [Set Value Change Save Display] shows up to determine Yes or No. If selecting yes and

pushing ENTER button, the changed set values are all saved. However, if selecting No and ENTER

button or MENU button again, the changed set values are not saved and the existing set values

are still applied.

CAUTION: Be careful not to push down MENU buttons repeatedly! Then, the newly

changed set values are neither saved nor applied.

S a v e C h a n g e d S e t ?

Y e s / N o

Figure 4-7 Set Value Change Save Display

Main Menus Sub Items

Function Setting Group1, Group2, Group3, Group4, Group Setting

Configuration I/O, Communication, Event, Time

Display Measurements, Status, Counter

Event List I/O events, Function events, System events, Fault I events,

Demand I events, Demand P events, Demand Q events,

Max. I events, Max. P events, Max. Q events



S e t t i n g S a v i n g !

Figure 4-8 ENTER to Yes

[ M A I N ME N U ]

> 1 . F u n c t i o n S e t t i n g

2 . C o n f i g u r a t i o n

3 . D i s p l a y

Figure 4-9 ENTER to No

4.2.1.4 CONFIGURATION

[ C O N F I G ME N U ]

1 . I / O

2 . C o mmu n i c a t i o n

3 . E v e n t

4 . T i me

Figure 4-10 Configuration

Configuration menu has the setting items for communication, I/O, and system configuration.

Setting items are I/O, Communication, Event and Time.

After finishing the set value change, when MENU button is pushed to return to [Main Menu

Display], [Set Value Change Save Display] shows up to determine Yes or No. If selecting yes and

pushing ENTER button, the changed set values are all saved. However, if selecting No and ENTER

button or MENU button again, the changed set values are not saved and the existing set values

are still applied.

CAUTION: Be careful not to push down MENU buttons repeatedly! Then, the newly

changed set values are neither saved nor applied.



4.2.1.5 DISPLAY

[ D I S P L A Y ME N U ]

1 . M e a s u r e me n t s

2 . S t a t u s

3 . C o u n t e r

Figure 4-11 Display

In Display menu, measurement values, monitored status, and counter values are displayed.

4.2.1.6 EVENT LIST

[ E V E N T L I S T ]

1 . I / O E v e n t s

2 . F u n c t i o n e v e n t s

3 . S y s t e m e v e n t s

4 . F a u l t s e v e n t s

5 . D e ma n d I e v e n t s

6 . D e ma n d P e v e n t s

7 . D e ma n d Q e v e n t s

8 . M a x . I e v e n t s

9 . M a x . P e v e n t s

10 . M a x . Q e v e n t s

Figure 4-12 Event List

In Event List menu, all types of events are displayed with occurred time and event description.

Using UP & DOWN buttons, event list can be scrolled up and down in the LCD display.

Event List Sub Items Max.

I/O Events Status change of binary Input/Output 1023

Function Events Operated status of Protection Function 1023

System Events Setting change, Reset, Self Dignosis 255

Fault I Events Latest fault current, phase and time 255

Demand I,P,Q Events Each phase daily average load current, active power


1023

Max. I,P,Q Events Each phase daily Peak load current, active power


1023



5. PROTECTION FUNCTIONS

5.1. FAULT DETECTION

FTU detects the Phase & Earth Fault and trip the breaker.

The fastest operation time is within 45msec including auto-recloser operating time. There are 58

trip curves, which can be selected for fast and delayed operation respectively. The Curve can be

edited by using several parameters, i.e. time multiplier, time adder and minimum response time.

And high current trip element can be used for instantaneous trip. It is definite time

characteristics. During cold-load condition, pickup multiplied by cold-load multiplier. During the

cold-load condition, time-delayed curve is applied instead of fast curve. This function can be

enabled or disabled by cold-load multiplier.

Earth fault detection function can be enabled or disabled by ‘Ground Protection Enable’.

Phase Fault Earth Fault Step Unit

Range Def. Range Def.

Pickup Current 10~900 400 5~900 60 1 A

Inrush Block NO/YES YES NO/YES YES

Fast Operation

Time Curve

Type 1~58 1-A 1~58 2-B 1

Time Multiplier 0.05~2.00 1.00 0.05~2.00 1.00 0.01 sec

Time Adder 0.00~1.00 0.00 0.00~1.00 0.00 0.01 sec

Min. Response

Time 0.00~1.00 0.00 0.00~1.00 0.00 0.01 sec

Reset Type RDMT/RIDMT RDMT RDMT/RIDMT RDMT

RDMT(Definite Time)

RIDMT(Inverse Time)

Reset Definite

Time 0.00~100.00 0.00 0.00~100.00 0.00 0.01 sec



Phase Fault Earth Fault Step Unit

Range Def. Range Def.

Delayed Operation

Time Curve Type 1~58 20-1 1~58 21-2 1

Time Multiplier 0.05~2.00 1.00 0.05~2.00 1.00 0.01 sec

Time Adder 0.00~1.00 0.00 0.00~1.00 0.00 0.01 sec

Min. Response

Time

0.00~1.00 0.00 0.00~1.00 0.00 0.01 sec

Reset Type RDMT/RIDMT RDMT RDMT/RIDMT RDMT RDMT(Definite Time)

RIDMT(Inverse Time)

Reset Definite

Time

0.00~100.00 0.00 0.00~100.00 0.00 0.01 sec

5.1.1 Definite Time Protection

Definite Time is an alternative to Inverse Time Protection. It works by tripping the recloser at a

fixed time after pick-up.

Range Def. Step Unit Comment

Phase Detection

Active OFF/ON OFF

Pickup Current 50~10000 1000 1 A

Detection Time 0.00~1.00 0.00 0.01 sec

Earth Detection

Active OFF/ON OFF



5.1.2 High Current Trip (HCT)

Very high valued current can cause serious damage to the Recloser and the resultant fault

spread-out, therefore HCT element should operate faster than Instantaneous or Time-Delayed TC

curve’s operation time and its priority must be higher than the normal auto-reclosing sequence.



HCT can be configured up to 4 times for phase fault and earth fault, respectively. HCT Count

setting value ‘0’ means HCT element disabled.


Phase Detection

Operation Count 0~4 0 1 ‘0' means disable.



Earth Detection

Operation Count 0~4 0 1 ‘0' means disable.



5.1.3 Single Shot Operation

In Single Shot Operation is used to provide an appropriate protection curve when non-reclosing

operation is required, for example, when closing onto a fault.

In Single Shot Operation the controller goes directly to lockout after one trip and will not auto-

reclosing.


Single Shot Time 0~180 10 1 sec

5.1.4 TC Curve

FTU-R200 has 54 types of built-in TC curves including ANSI, IEC Standard curves. And customer

can define additional 4 curves as his own curves by using PC Software. Basically, built-in curves

have inverse time characteristrics, but can be easily adjusted by three parameters such as multiplier,

time adder and minimum response time. In engineering step, the selection and adjustments of TC

curves shall be done for the protection coordination with other protection devices in the feeder.

The follwing parameters are related to change and editing of TC curve’s characteristics.

Time Multiplier



Time Adder

Minimum Response Time

Time Multiplier is multiplied to the operating time of basic curve (TDM=1.0), then Time Adder is

added to the resulting operating time of the curve adjusted by multiplier. Minimum Response Time

defines the fastest operating time of the curve.

The following tables describe the built-in TC Curve Type and the corresponding numbers in the

setting. TC Curve graphs are shown in the appendix.

Setting No. 1 2 3 4 5 6 7 8 9 10

Curve A B C D E EI KP L M N

Setting No. 11 12 13 14 15 16 17 18 19 20

Curve NI P R T V VI W Y Z 1

Setting No. 21 22 23 24 25 26 27 28 29 30

Curve 2 3 4 5 6 7 8 8* 9 11

Setting No. 31 32 33 34 35 36 37 38 39 40

Curve 13 14 15 16 18 N1 N2 N3 N4 F

Setting No. 41 42 43 44 45 46 47 48 49 50

Curve G H J LI 8+ 17 KG A* SI IM

Setting No. 51 52 53 54 55 56 57 58

Curve IV IE U8 U2 C1 C2 C3 C4

Curve Type Curve Name

Recloser Curves A,A*,B,C,D,E,F,G,H,J,KP,KG,L,M,N,P,R,T,V,W,Y,Z,

1,2,3,4,5,6,7,8,8*,8+,9,11,13,14,15,16,17,18

IEC Standard Curve Standard Inverse(NI),Very Inverse(VI),Extremely Inverse(EI)

Long-time Inverse(LI),Short-time Inverse(SI)

ANSI/IEEE Standard

Curve Moderately Inverse(IM),Very Inverse(IV),Extremely Inverse(IE),

Long-time Inverse(U8),Short-time Inverse(U2)

KEPCO Standard Curve N1,N2,N3,N4

User Customized Curve C1,C2,C3,C4



IEC, ANSI/IEEE, US STANDARD TC CURVE EQUATION

T = TDM • α / (Mβ - 1) +γ

TRESET = TDM • τ / (Mβ - 1)

T : Operate Time, TDM : Multiplier Setting, TRESET : Reset Time

Curve Type Standard α β γ τ

Standard Inverse(NI) IEC 0.14 0.02 - -

Very Inverse(VI) 13.5 1 - -

Extremely Inverse(EI) 80.0 2 - -

Short-time Inverse(SI) 0.05 0.04 - -

Long-time Inverse(LI) 120 1 - -

Very Inverse(IV) IEEE 19.61 2 0.491 21.6

Extremely Inverse(IE) 28.2 2 0.1215 29.1

Moderately Inverse(IM) 0.0515 0.02 0.114 4.85

Short-time Inverse(U2) CO2 0.2394 0.02 0.01694 2.261

Long-time Inverse(U8) CO8 5.95 2 0.18 5.95

5.1.5 EXAMPLE OF TC CURVE EDITING

3-parameters are applied in the follwing order. The values in the parenthesis are examples.

Time Multiplier : 1.5

Time Adder : 0.03

Minimum Response Time : 0.1

In the next figure, for example, the curve A is the basic curve. Assume the operating time of the

basic curve (A) at 16 times pickup current is 0.04 sec. When applying Time Multiplier, curve ‘A’

changes its shape, that is, the curve becomes less steep in time axis and operation time becomes

longer by a multiplier at the same current value like ‘B’ in the figure. The operating time at 16

times pickup becomes 0.06 sec. Then Time Adder shall be applied. The operating time of the



resulting curve ‘C’ is 0.09sec. Finally Minimum Response Time cuts the curve part, which is

shorter than this time. Then the actual operating time of the example at 16 times becomes 0.1sec.

Figure 5-1 TC Curve Editing Example 1

There are two additional definite time over-current elements in the controller. The next figure

shows 3-stage over-current protection characteristics. The third stage is prepared for

instantaneous protection. Therefore the harmonic restraint is not applied to third stage elements,

but the second stage definite time over-current element.

Figure 5-2 TC Curve Editing Example 2



5.1.6 Auto Reclosing Sequence

The FTU-R200 supports 3-shot reclosing with sequence coordination.

For Permanent fault, under the condition of reclosing enabled, no other restraints such as cold-

load, inrush and no High Current Trip, recloser will be locked out to open the Reclosing Count

repeating trip and reclose according to the preset settings.


Phase

Operation Count 1~4 4 1

Instantaneous Count 0~4 2 1

Earth


Instantaneous Count 0~4 2 1

Phase/ Earth Reclosing

Reclose Interval 1st 0.5~180.0 0.6 0.1 sec

Reclose Interval 2nd 1~180 2 1 sec

Reclose Interval 3rd 1~180 15 1 sec

Reset Time 3~180 30 1 sec

SEF Reclosing


Reclose Interval 1st 0.5~180.0 0.6 0.1 sec

Reclose Interval 2nd 1~180 2 1 sec

Reclose Interval 3rd 1~180 15 1 sec

Reset Time 3~180 30 1 sec

For example in the below figure, the reclosing sequence is organized in 2F2D, which means the

Recloser protection function operates as Instantaneous(Fast) element during first 2 reclosing shots

and operates as Time-Delayed element during last 2 reclosing shots. This composition also can be

configured.



Figure 5-3 Permanent Fault: 3 shot Reclosing & 2F2D

For temporary fault, if the fault is removed before the preset Reclosing Count and no fault is

detected during the preset Reset Time, then the reclosing sequence is initialized to normal

operation standby mode. When a fault is detected again during the Reset Time, the Recloser will

be locked out after the remaining reclosing counts excluding the previously operated reclosing

counts.

Figure 5-4 Temporary Faults: Fault Removal during 1st Reclosing Interval



5.1.7 Sequence Coodination

In case that there are over 2 Reclosers which operate in serial connections, Sequence

Coordination function prevents unnecessary trip of source-side Recloser by instantaneous element

due to load-side fault. When this function is set to on and the fault is restored to normal state by

load-side Recloser during source-side Recloser’s time-delayed operation, source-side Recloser only

increments the reclosing counts without tripping. However, source-side Recloser performs tripping

at the last reclosing count. If the Reclosing function is disabled, Sequence Coordination function is

no longer carried out.


Seq. Coordination Active OFF/ON OFF

For Sequence Coordination, the following setting items should be issued and checked precisely

between serially connected Reclosers.

Identical Protection Characteristics such as TC Curves, Total Operation Count,

Instantaneous Operation Count

Identical Reclosing Interval(Dead Time)

Source-side TC Curve Time Delay Over 100msec than Load-side

Source-side Reset Time longer than Load-side longest Reclosing Interval

(to Prevent Source-side Recloser reset during Load-side Reclosing action)

Figure 5-5 Operation of Sequence Coordination



5.2 Cold Load Pickup

Cold Load Pickup is the phenomenon that takes place when a distribution circuit is re-energized

following an extended outage of that circuit. Cold load pickup is a composite of two conditions:

inrush and loss of load diversity. The magnitude of cold load pickup current is a combination of

non-diverse cyclic load current, continuously operating load current, transformer magnetizing

current, capacitor inrush current, etc. The combination can result in current levels that are

significantly higher than normal peak load levels. Cold load pickup current can be high enough to

cause instantaneous overcurrent and/or time overcurrent relays to operate.

Cold load pickup is primarily an overcurrent condition. If degraded voltage is also a concern,

then the application of voltage sensitive relays should also be considered.

Figure 5-6 Cold Load Pickup Current Shape

In Cold Load Pickup mode, without changing operational characteristics, pickup level is changed

by the times of Cold Load Multiplier (0~10) and the characteristics of time-delayed element

operate even if the setting is in the Instantaneous element. If the transient current goes down and

retrains below the pickup level within Cold Load Duration, then the normal sequence mode is

restored after Cold Load Restore Time. The Cold Load Restore Time is fixed value of 30msec. These

setting exist for both phase fault and earth fault separately, and the value ‘0’ of Cold Load

Multiplier means Cold Load Pickup Function disabled. Normaly Reclosing Sequence mode is

applied.



5.3 SENSITIVE EARTH FAULT (SEF) DETECTION

On the non-grounded network, it is hard to detect fault current because ground current of non-

grounded network is much low. Therefore, FTU-R200 is designed to measure zero-sequence values

from either external core Balanced Current Transformer (or ZCT) or Residual Connection of 3 Phase

Current Transformers to detect earth fault in the non-grounded network. This function is generally

called SEF detection.

In case of earth fault in the non-grounded network, since very small fault current due to line

capacitance component flows into the fault point from both sides, SEF detection also considers the

fault direction even in the radial network. Maximum Torque Angle is for setting the phase

difference between zero-sequence voltage and zero-sequence current, and the protection zone is

between -90° and +90° on the basis of Maximum Torque Angle. And it can be used for alarm or

Trip.

Figure 5-7 Phase Diagram of SEF


Phase Detection

Pickup Multiplier 0~10 2 1 ‘0' means disable.

Duration Time 0.00~60.00 3.00 0.01 sec

Earth Detection

Pickup Multiplier 0~10 2 1 ‘0' means disable.

Duration Time 0.00~60.00 3.00 0.01 sec



5.4 DIRECTIONAL BLOCKING

Directional Blocking is a protection feature that restricts tripping on faults to a designated side

of the recloser. It prevents nuisance tripping if particular network conditions are causing ‘False’

earth faults. In radial systems Directional Blocking prevents nuisance tripping by blocking faults in

the reverse direction and only responding to faults in the foward direction.

Protect for faults in the forward and reverse direction. A forward fault may use a different time-

current curve and setting to a reverse fault (i.e. these are individually selectable). Both the forward

protection and reverse protection are operating at the same time. This is an additional protection

feature.


Phase Detection

Trip Direction OFF/FWD/REV/ALL FWD

3V1 Threshold 0~100 20 1 %

3I1 Threshold 0~100 20 1 %

3I1 Max. Torque Angle 0~355 60 5 Degree

Earth Detection

Trip Direction OFF/FWD/REV/ALL FWD

-3V0 Threshold 0~100 20 1 %

3I0 Threshold 0~100 20 1 %

3I0 Max. Torque Angle 0~355 60 5 Degree


Pickup Current(3I0) 2~20 5 1 A

Pickup Voltage(-3V0) 10~80 30 1 % Rated Phase

Voltage

Max. Torque Angle 0~345 90 15 Degree Leading


Inrush Block NO/YES YES

Function In Use OFF/ALARM/TRIP OFF



5.5 INRUSH RESTRAINTS

Inrush Restraint works by raising the phase and earth currents for a short period of time to allow

the inrush current to subside.

Inrush current is an over-current higher than pickup current level, which is mainly caused by

transformer’s excitation current at closing action. To distinguish inrush current from load current,

2nd harmonics percentage is adopted as a criterion.

When, in the setting, ‘Fault Detection-Inrush Block’ is set to ‘Yes’ and ‘Fault Detection-Inrush

Detection-Function In Use’ is set to ‘ON’, inrush current over pickup level is considered as normal

load current and reclosing sequence is not processed.

This Function can be used to detect magnetizing inrush condition by comparing 2nd harmonic

component to fundamental frequency component of current.


2nd Harmonic 5~50 20 1 %


Function In Use OFF/ON ON

5.6 OPEN LINE DETECTION (LOSS OF PHASE)

Open Line is detected by Under Voltage characteristics at unbalanced condition.

When the voltage on one or two phases drops below the ‘Volt OFF Level’ setting, the ‘Delay

Time’ starts running. If the voltage on those phases stays below ‘Volt OFF Level’ setting until the

‘Delay Time’ timer expires, the Loss of Phase will be detected.

If the voltage on detected phase rises to the ‘Vol ON Level’ setting, the Loss of Phase is released

immediately.


Volt ON Level 50~90 80 5 %

Volt OFF Level 35~75 50 5 %

Delay Time 0.1~30.0 0.4 0.1 sec




5.7 PHASE SYNC. CHECK


Phase Difference 5~60 30 1 Degree

Dalay Time 0.1~30.0 0.1 0.1 sec


5.8 UNDER VOLTAGE PROTECTION

As the supplied voltage to load lowers down, there occur the weakness of illumination intensity

and shortening of life span for lighting load, and the damage to motors because of the over-

current flow. To cope with this situation of damages to equipment, under-voltage protection (UV)

is used. UV of FTU supports the delay time element. Furthermore, UV can be used to generate only

alarm signal to operator instead of trip signal to Recloser.

Figure 5-8 Functional Diagram for Under Voltage Protection


Pickup Level 0.30~0.95 0.80 0.01 PU

Delay Time 0.0~180.0 1.0 0.1 sec

Function In Use OFF/ARAMP/TRIP OFF



5.9 OVER VOLTAGE PROTECTION

On the other hand, as the supplied voltage goes up behind the regular load voltage, there occur

some problems of equipment deterioration, insulation breakdown, equipment life span shortening,

etc. Over Voltage Protection (OV) manages this situation. OV of FTU supports the delay time

element. OV also can be used to generate only alarm signal to operator instead of trip signal to

Recloser.

Figure 5-9 Functional Diagram for Over Voltage Function

5.10 UNDER FREQUENCY PROTECTION

Under Frequency protection (UF) element is used into expenditure that detect under frequency

and separated load or generator. Under Frequency demands for power increase or occurs in

control failure of generator.

Under Frequency protection element acts in case of voltage more than ‘Voltage OFF Level’ is

approved to Voltage A-Phase. UF of FTU supports the delay time element. Furthermore, UV can

be used to generate only alarm signal to operator instead of trip signal to Recloser.


Pickup Level 1.05~1.50 1.20 0.01 PU

Delay Time 0.0~180.0 1.0 0.1 sec




5.11 MULTIPLE PROTECTION GROUPS

The FTU-R200 supports up to 4 Protection Groups, each of which can be confiqured with

completely separate protection characteristics with different inverse time curves and setting

currents. The number of protection group avaliable to the operator can be configured.

And FTU-R200 support Automatic Protection Group Selection. Automatic Protection Group

Selection is used to change the protection group depending on the direction of power flow. This

allows the Recloser to be correctly graded with devices downstream regardless of the power flow

direction.

Range Def. Step Unit

Default Group 1~4 1 1

ADGS(Automatic Default Group Selection) Function OFF/ON OFF

Reverse Group 1~4 1 1


Pickup 47.00~59.98 49.80 0.01 Hz

Dalay Time 0.03~10.00 0.10 0.01 sec




6 CONFIGURATION SETTING

6.1 I/O CONFIGURATION

6.1.1 AC RATING

SWITCH INSTALLATION

The FTU-R200 provides a function to set ‘Reference Phase’ and the ‘CT Direction’ according to

the switch installation position and the current flowing direction.

Figure 6-1 shows the general and ‘assumed-default’ case of switch installation, in which the

distribution lines with current A, B, C are connected to the phase A, B, C terminals of the switch,

and the current is flowing A/B/C to R/S/T of the switch. In this case, the ‘Referece Phase’ setting

value should ‘A’, which means that the phase of current flowing into the phase A terminal of the

switch is ‘A’, In addition, the ‘CT Direction’ setting value should be ‘Foward’, which means that

the current is flowing in the direction from the phase A/B/C terminals to the R/S/T terminals of the

switch.


Line Configuration Y-G/DELTA Y-G

Systme Frequency 50/60 50 40 Hz

Rated Voltage (L-L) 1000~30000 22900 10 V Phase to Phase

Reference Voltage (L-N) 1000~30000 13200 10 V Phase to Earth

Reference Phase A/B/C A

CB Operating Time 0~35 1 1 ms

CT Ratio 1~5000 1000 1

CT Direction FWD/REV FWD

NCT Ratio 1.0~5000.0 133.3 0.1

NCT Direction FWD/REV FWD

Phase Rotation A-B-C/A-C-B A-B-C

Sample Record Frequency 16/32/64/128 128



Figure 6-1 Switch installation position and the current flowing direction – Case 1

Figure 6-2 shows another case of switch installation, in which the distriburion lines with current A,

B, C are connected to the phase A, B, C terminals of the switch, and the current is flowing from

R/S/T to A/B/C of the switch. In this case, the ‘Referece Phase’ setting value should ‘A’, which

means that the phase of current flowing into the phase A terminal of the switch is ‘A’, In addition,

the ‘CT Direction’ setting value should be ‘Reverse’, which means that the current is flowing in

the direction from the phase R/S/T terminals to the A/B/C terminals of the switch.





B, C are connected to the phase C, B, A terminals of the switch, and the current is flowing from

R/S/T to A/B/C of the switch. In this case, the ‘Referece Phase’ setting value should ‘C’, which

means that the phase of current flowing into the phase A terminal of the switch is ‘C’, In addition,

the ‘CT Direction’ setting value should be ‘Reverse’, which means that the current is flowing in

the direction from the phase R/S/T terminals to the A/B/C terminals of the switch.



B, C are connected to the phase C, B, A terminals of the switch, and the current is flowing from

A/B/C to R/S/T of the switch. In this case, the ‘Referece Phase’ setting value should ‘C’, which

means that the phase of current flowing into the phase A terminal of the switch is ‘C’, In addition,

the ‘CT Direction’ setting value should be ‘Forward’, which means that the current is flowing in

the direction from the phase A/B/C terminals to the R/S/T terminals of the switch.




6.1.2 DEMAND SETTING

The FTU calculates and stores average of currents and active, reactive powers during the demand

interval, which is configurable as 5, 10 or 15 minutes. The buffer has 1023 demands. Also FTU

stores daily peak demand up to 1023.


Block Interval 15/30/60 15

Roll Interval 1/5/15/30/60 15

6.1.3 WAVE TRIGGER


Sample Record Frequency 16/32/64/128 128

Pre-1st Cycle 1~5 2 1 Cycle

Post-2nd Cycle 1~5 2 1 Cycle

Pre-2nd Trigger Cycle 1~10 10 1 Cycle



6.1.4 CLOSE INTERLOCK


Live Load NO/YES YES

Sync. Fail NO/YES YES

6.1.5 FI RESET SELECT


FI Reset MANUAL/AUTO MANUAL

6.1.6 VOLTAGE DISPLAY

The controller supports two voltage display of LCD.


Voltage Display L-N/L-L L-N L-N : Phase to Earth

L-L : Phase to Phase

6.2 POWER QUALITY MEASUREMENT FUNCION

6.2.1 VOLTAGE & CURRENT UNBALANCE

Voltage unbalance (or imbalance) is a condition in which the maximum deviation from the

average of the three-phase voltages or currents, divided by the average of the three-phase voltage

or currents, expressed in percentage. Voltage unbalance can be the result of blown fuses in one

phase of a three-phase capacitor bank. Severe voltage unbalance greater than 5% can cause

damage to sensitive equipments.



6.2.2 SHORT-DURATION VOLTAGE VARIATION

There are three types of short-duration voltage variations, namely, instantaneous, momentary

and temporary, depending on its duration. Short-duration voltage variations are caused by fault

conditions, energization of large loads, which require high starting currents or loose connections in

power wiring. Depending on the fault location and the system conditions, the fault can generate

sags, swells or interruptions. The fault condition can be close to or remote from the point of

interest. During the actual fault condition, the effect of the voltage is of short-duration variation

until protective devices operate to clear the fault.

6.2.2.1 SAG

A sag (also known as dip) is a reduction to between 0.5 and 0.99 pu in RMS voltage or current

at the power frequency for a short period of time from 0.5 to 10 cycle. A 10% sag is considered an

event during which the RMS voltage decreased by 10% to 0.9 pu. Voltage sags are widely

recorgnized as among the most common and inportant aspects of power quality problems

affecting industrial and commercial customers. They are particularly troublesome. Since they occur

randomly and are difficult to predict.

Volatge sags are normally associated with system faults on the distribution system, sudden

increase in system loads, lightning strikes or starting of large load like induction motors. It is not

possible to eliminate faults on a system. One of the most common causes of faults occuring on

high-volatage transmission systems is a lightning strike. When there is a fault caused by a lightning

strike, the voltage can sag to 50% of the standard range and can last from four to seven cycles.

Most loads will be tripped off when encounter this type of voltage level. Possible effect of voltage


Voltage Unbalance

Detection Level 0~100 30 1 %


Current Unbalance

Detection Level 0~100 30 1 %




sags would be system shutdown or reduce effciency and life span of electrical equipment,

particularly motors.

Equipment sensitivity to voltage sag occurs randomly and has become the most serious power

quality problem affecting many industries and commercial customers presently. An industrial

monitoring program determined an 87% voltage disturbances could be associate to voltage sags.

Most of the fault on the utility transmission and distribution system are single line-to-ground faults

(SLGF).


Detection Level 0.50~0.99 0.90 0.01 PU

Detection Time 0.5~10.0 2.0 0.5 Cycle

6.2.2.2 SWELL

A swell (also known as momentary overvoltage) is an increase in RMS voltage or current at the

power frequency to between 1.01 and 1.5 Pu for duration from 0.5 to 10 cycles. Swells are

commonly caused by system conditions, switching off a large load or energizing a large capacitor

bank. A swell can occur during a single line-to-ground fault (SLGF) with a temporary voltage rise

on the unfaulted phases. They are not as common as voltage sags and are characterized also by

both the magnitude and duration. During a fault condition, the severity of a voltage swell is very

much dependent on the system inpedance, location of the fault and grounding. The effect of this

type of disturbance would be hardware failure in the equipment due to overheating.




6.2.2.3 INTERRUPTION

An interruption occurs when there is a reduction of the supply voltage or load current to

between 0.1 and 0.49 pu for duration from 0.5 to 10 cycle. Possible causes would be circuit

breakers responding to overload, lightning and faults. Interruptions are the result of equipment

failures, power system faults and control malfunctions. They are characterized by their duration as

the voltage magnitude is always less than 10% of the nominal. The duration of an interruption can



be irregular when due to equipment malfuctions or loose connections. The duration of an

interruption due to a fault on the utility system is determined by the utility protective devices

operating time.




6.2.3 VOLTAGE & CURRENT THD ALARM

The Total Harmonic Distortion, or THD, of a sigmal is a measurement of the harmonic distortion

present and is defined as the ratio of the sum of the powers of all harmonic components to

the power of the fundamental frequency.


Voltage

Alarm Level 0.5~100.0 0.0 0.1 %


Current

Alarm Level 0.5~100.0 0.0 0.1 %


6.3 COMMUNICATION

6.3.1 PORT PARAMETERS

6.3.1.1 SERIAL PORT


Speed 1200/2400/4800/9600/19200 1200

Slave Adderss 1~65534 1 1

Protocol DNP/IEC101/IEC104 DNP

Port RS232C/RS485 RS232C



6.3.1.2 DIAL UP


Dial-up Mode DISABLE/ENABLE DISABLE

Phone Number 20 Digit 1

Auto Hang-up Time 0~255 5 1 sec

6.3.1.3 TCP/IP PORT


IP Address - 0.0.0.0

Subnet Mask - 255.255.255.0

Gateway - 0.0.0.0

DNP Port 0~65535 20000 1

IEC Port 0~65535 2404 1

6.3.1.4 MODEM CONTROL


Line 2-WIRE/4-WIRE 4-WIRE

RTS Off Delay 10~500 50 10 ms

CTS Timeout 1~255 2 1 sec

DCD Timeout 0.1~30.0 5.0 0.1 sec



6.3.2 DNP3.0 PARAMETERS


D/L Retries 0~2 0 1

D/L Timeout 1~255 30 1 sec

D/L Confirm NO/YES/SOMETIMES SOMETIMES

A/L Retries 0~2 1 1

A/L Timeout 1~255 40 1 sec

Initial Unsolicited MSG NO/YES NO

Unsolicited Class 1 Delay Time 0~60 5 1 sec



Arm Timeout 1~255 15 1 sec

Unsolicited Address 0~65534 65534 1

Multi Frame Interval 10~500 100 10 ms

Unsolicited Class 1 DISABLE/ENABLE DISABLE





6.3.3 IEC PARAMETERS


Cyclic Period 0~60 0 1 sec

Arm Timeout 1~255 15 1 sec

Single Point Class CLASS1/CLASS2 CLASS1

Double Point Class CLASS1/CLASS2 CLASS1

Measured Point Class CLASS1/CLASS2 CLASS2

IEC101 PARAMETERS

Link Address Size 0~2 2 1

Common Address Size 1~2 2 1

Object Address Size 1~3 2 1

COT Address Size 1~2 1 1

Time Marker NONE/CP24/CP56 CP56

Single NACK Control NO/YES YES

IEC104 PARAMETERS

t0 Off Line Poll Period 1~255 30 1 sec

t1 Ack Period 1~255 15 1 sec

t2 SFrame Period 1~255 10 1 sec

t3 Test Period 1~255 20 1 sec



7 STATUS MONITORING & CONTROL

7.1 SWITCH CONTROL

Recloser can be controlled from remote or local operator place. Operator place can be changed

only at local front panel. ‘REMOTE CONTROL’ push button is to select the operator place. Operator

place is toggled between local and remote by pushing button. LED is lit if remote position is

selected. FTU-R200 begins with remote position at power-up. Control is allowed only at the

position selected.

Local switch control requires two-step operation. It’s for security of operation. ‘SELECT’ button

should be pushed before ‘CLOSE’ or ‘OPEN’. SELECT LED is lit if SELECT operation is valid. SELECT

can be canceled by pushing SELECT button again or automatically after SBO timeout without

operation. CLOSE or OPEN operation is valid while this LED is lit. Pushing CLOSE or OPEN button

outputs switch control signal with fixed time pulse which is configurable. Switch status change

input which is auxiliary contacts of switch stops continuing to output pulse. There are some

interlock conditions to inhibit FTU from outputting pulse signal.

Gas low, Switch handle lock, same status of switch auxiliary contacts ‘a’, ‘b’ are those. Close or

open pulse width shall be set longer than switch operating time.

Remote switch control is possible by using SCADA protocol DNP3.0 or IEC60870-5-101,

IEC60870-5-104 FTU-R200 supports SBO (Select Before Operate) or Direct operate. If the operator

place is set to ‘Local’, remote control commands are refused. Pulse width of remote control

command shorter than setting will be overridden by local configuration

7.2 SWITCH STATUS MONITORING

FTU monitors switch open/close, gas and lock status through auxiliary contacts. FTU scans these

contacts input every 5 milliseconds. Switch open/close status is determined by double binary input,

normally open and closed contacts. Changes of all input status are saved as events with time tag in

history buffer. For each contact input, on-delay time can be applied. It’s adjustable within

10~500ms by 5ms step.



7.3 BATTEY MONITORING

FTU monitors external Lead-acid battery through the control unit, which are mounted on inner

back-side of control box. Battery voltage is supervised continuously during external AC supply loss.

If over-discharge condition occurred, the control unit sends alarm signal to RTU and disconnect

battery in order to protect battery cell damage after 1-minute delay. The delay enables RTU to

send alarm state to remote station via communication. Also while AC supply is applied, battery test

control activates this function with connecting dummy battery load during test pulse, which is

configurable. The test control command can be ordered at local or remote.



8 MEASUREMENTS

8.1 BASIC ELECTRIC QUANTITIES

FTU has 3-phase currents and 6 voltages input. DSP digitizes these signals and calculates various

electric quantities. These are basically based on fundamental frequency components. DSP use FFT

(Fast Fourier Transform) algorithm to get the components. Also DSP calculates true RMS of 3-

phase currents and voltages which include system frequency components and 2nd~31th harmonics.

Actually harmonic components over than 31th are attenuated by analog filters. Electric quantities

calculated are listed in the following.

Currents (Ia, Ib, Ic, In) RMS, Phase Angle, True RMS

Voltage (Va, Vb, Vc, Vr, Vs, Vt) RMS, Phase Angle, True RMS

Apparent Power A-Phase, B-Phase, C-Phase, 3-Phase Total,

Active Power A-Phase, B-Phase, C-Phase, 3-Phase Total,

Reactive Power A-Phase, B-Phase, C-Phase, 3-Phase Total,

Power Factor A-Phase, B-Phase, C-Phase, 3-Phase Total,

Va-Vr Phase Angle Difference

Current, Voltage Unbalance

Frequency, Temporature

In the above items listed, active power, reactive power values are signed integer. Sign represents

power flow or if loads are inductive or capacitive. Also power factor has lead/lag state value

separately.

Currents and voltages have phase angles, which are relative phase angles compared to the

reference Va. These angles are useful to monitor the phase sequence and imbalance of distribution

line.

8.2 SEQUENCE COMPONENTS

FTU provides the sequence components of 3-phase currents and voltages. They are positive

sequence current (I1) and voltage (V1), negative sequence current (I2) and voltage (V2), and zero

sequence voltage (V0) which are calculated by 3-phase phasor quantities. This information can be

used to monitor imbalance of distribution line.



8.3 HARMONICS

FTU extracts harmonic components from 3-phase current and voltage signals by using FFT (Fast

Fourier Transform). It provides 2nd to 31st harmonic magnitudes and THDs (Total Harmonic

Distortion) for each phase. THD is the total harmonic percentage to the fundamental frequency

component. FTU also calculates and provides 3-phase THD. These values may be used to monitor

the power quality of distribution line.

8.4 ENERGY

FTU provides active energy, reactive energy for each phase or 3-phase total. Also import, export

energy are accumulated on separate register. Units of energy are kWh, kVarh, which represent

primary distribution line energy flow. The values are represented by 16-bit rollovers kWh, kVarh

counters which are available at remote or local. Power calculation for energy is based on the

fundamental frequency component. It’s not for billing purpose, but for load management. Proper

energy accumulation needs that SCADA read energy counter with reset from FTU and accumulate

it on SCADA’s local register by periods shorter than the expected rollover time of the counter.

Figure 8-1 Four-quadrant power flow directions



8.5 DEMAND CURRENTS AND POWER

FTU calculates and stores average of currents and active, reactive powers during the demand

interval, which is configurable as 5, 10, or 15 minutes. The buffer has 1023 demands. Also FTU

stores daily peak demand up to 1023.



9 MAINTENANCE SOFTWARE

9.1 OVERVIEW

FTU-R200 has a dedicated setting and operation tool, FTUMan. This tool is operated on PC or

Notebook, and through RS232C port on front panel of FTU-R200. For this communication,

MODBUS protocol is used.

It supports the follwing features.

Setting & Configuration changes

Event & Waveform load

Measurement & Status display

Waveform File upload and convert

SCADA monitors protocol data frame between devices

Figure 9-1 Overview of FTUMans



9.2 OPERATION OF FTUMAN

9.2.1 MENU

9.2.1.1 FILE

New Closes the current file and allows the creation of a new file

Open Closes the current file and opens a standard window file selection dialog.

An existing FTU File (*.f2s) can be selected and opened.

Save Saves the current file to the hard drive. If the file is new and this is the

first time it has been saved, the Save As dialog will be opened allowing

the user to type in a name before saving.

Save As Opens a standard Windows Save As dialog box. This allows an existing file

to be saved under a new name.

Exit Closes the current file and exits the tool.

9.2.1.2 COMM

Comm.Config Opens a window for communication configuration dialog.

Comm.Connection Starts communication with FTU-R200

Comm.Disconnection Stops connecting with FTU-R200

Figure 9-2 Comm. Configuration Window

Port Select a serial Port of Laptop

Baud Rate Make to the transmission medium per second of in a digitally signal

Retry Set up the count if it failed to connect

Timeout Set up the time to connect



9.2.1.3 COMMAND

Clock Setting Set RTC Time of FTU-R200

Figure 9-3 Clock Setting Window

Device Time Gets the current time per 1 second from FTU-R200.

Setting Time The operator can set aside time.

Use System Time The operator can use PC’s time.

Write Write RTC time to FTU-R200

Close Close this window

Factory

Initialization

Reset to factory defaults.

Warning: Restoring FTU-R200 to factory defaults will erase

all previous setting, configuration and event.

Fiqure 9-4 Factory Initialization Message Window



9.2.1.4 TOOLS

Protocol Monitoring Protocol monitoring command activation or deactivation.

IO Configuration Run the IOConfig program for I/O setting.

The IOConfig is explained in the Section 10.

DNP3.0

Index Configuration

Run the DNPConfig program for DNP index configuration.

The DNPConfig is explained in the Section 11.

Waveform

Evaluation Tool

Run the EvalTool program for analysis waveform data.

The EvalTool is explained in the Section 12.

9.2.1.5 VIEW

Toolbar Show or hide the toolbar.

Status Bar Show or hide the status bar.

Monitoring Bar Show or hide the monitoring bar. The monitoring bar shows

communication status with FTU-R200.

9.2.1.6 HELP

The Help Menu opens a window for FTUMan’s program version and information.

9.2.2 TOOLBAR

Below the menu is a toolbar with 9 buttons.

Figure 9-5 Toolbar of FTUMan

Upload Read input or ouput data from FTU-R200.

Download Write input or ouput data to FTU-R200.

About Opens a window for FTUMan’s program version and

information.

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In some cases, operators require to save and reuse these edited setting values. To satisfy this

request, FTUMan tool has ‘New’, ‘Open’ and ‘Save’ menu items in File Menu. The file extension

name is ‘f2s’.

If you set up the ADGS (Auto Detection Group Setting) Function ‘ON’, you can check the current

direction ‘Forward’ or ‘Reverse’.

Figure 9-8 Tree View

for Funtion and Coufiguration

Function has 5 contents, 4 setting groups and

active group setting. Each group has protection

setting value for FTU-R200.

Configuration has 3 contents for I/O, PQM and

communication. Communication seperated 3

contens, for Port, DNP3.0 and IEC protocol

parameter to communication for SCADA.

In tree view, if you choose some content, icon

will be replaced with a red icon from a blue icon.

And show setting parameters related content.

How to edit the setting value? Click the content in tree view and editing value using double-click

or Enter-Key. If you changed value, the text color is changed in red.

Figure 9-9 before the Change



Figure 9-10 after the Change

And, in event window has a following pop-up menu. In the Tree View, select ‘FUNCTION’or

‘CONFIGURATION’ or all sub contens, and press the right-click pop-up menu is avaliable.

Figure 9-11 Pop-up Menu for Event Window

If you click ‘Upload’ Button, the setting

parameters related selected contents in

the tree view reads from FTU-R200.

Also, if you click ‘Download’ Button, the

setting parameters related selected

contents in the tree view writes to FTU-

R200.

Figure 9-12 Input Password Dialog

When the Factory Initialization or all of information are changed, Input Password Window will be

appeared.

Note: Default Password is ‘ftuman’.



9.2.6 EVENT

In Event window, operators can list up all the event records, which are stored in the memory of

FTU-R200 by clicking ‘Upload’ button. Also 8 kinds of events are stored. Each event type of event

can be separately uploaded from FTU-R200 and can save to CSV format file. Time Resolution for

event recording is 5 msec and scanning interval is 1 msec.

And, in event window has a following pop-up menu. In the Tree View, select ‘EVENT’ and press

the right-click pop-up menu is avaliable.

Figure 9-13 Pop-up Menu for Event Window

Upload Reads the selected events in the tree view.

Clear All Events Delete all event stored.

Clear Fault Events Delete only fault events.

Save to CSV File Current event saves to CSV (Comma-Saperated Values file) file

format.

CSV File

A Comma-Seperated Values (CSV) file is used for the digital storage of data structed in

a table of lists form, where each associated item (member) in a group is in association

with others also seperated by the commas of its set.

Each line in the CSV file corresponds to a row in the table. Within a line, fields are

seperated by commas, each field belonging to one table column. Since it is a common

and simple file format, CSV files are often used for moving tabular data between two

different computer programs, for example between a database program and a

spreadsheet program.



9.2.6.1 I/O EVENT

Figure 9-14 I/O Event Window

Index Event sequence number, the recent events that occurred is displayed on top.

Date & Time Event occurred time.

Description Information of generated binary event.

Status Occured contact points and binary status, OFF/ON/AUTO



9.2.6.2 FUNCTION EVENT

Figure 9-15 Function Event Window



Description Operation of protection functions.

Status Occurred function event status, OFF/ON.



9.2.6.3 SYSTEM EVENT

Figure 9-16 System Event Window



Description Information of generated event like set value changed, triggered by power

reset and system error or self-diagnosis.

Status Occurred event position and detailed description of system error or self-

diagnosis.



9.2.6.4 FAULT EVENT

Figure 9-17 Fault Event Window



OC Detecting over-current.

SEF Detecting Sensitive Earth Fault.

UFR Detecting Under Frequency.

DIR Fault current direction.

Inrush Detecting inrush restraint.

Ia, Ib, Ic, In, V0 Fault current and zero-sequency voltage

Group Current setting group



9.2.6.5 PQM EVENT

Figure 9-18 PQM Event Window



Description The occurance history of power quality function change.

Value RMS value of voltage when moment voltage change occurs.

Unit: kV

Duration Duration time of moment voltage change by msec.

Unit: msec



9.2.6.6 DEMAND CURRENT EVENT

Figure 9-19 Demand Current Event Window



Ia, Ib, Ic, In Demand current of each phase and neutral.



9.2.6.7 DEMAND POWER EVENT

Figure 9-20 Demand Power Event Window

Index Event sequence number, the recent events that occurred is

displayed on top.


kWa, kWb, kWc, kW3ph 3-phase total and each phase kW.

kVARa, kVARb,

kVARc, kVAR3ph

3-phase total and each phase kVAR.

9.2.6.8 DAILY MAXIMUM CURRENT EVENT

For more details, similar in section 9.2.5.6. Demand Current Event.

9.2.6.9 DAILY MAXIMUM POWER EVENT

For more details, similar in section 9.2.5.7. Demand Power Event.



9.2.7 MEASUREMENT

Operators can monitor all kinds of measurement values such as current, voltage, sequence value,

power and energy, etc. And, FTU-R200 has the function of Harmonic Analysis, therefore up to 31st

harmonics RMS value and THD for current and voltage are measured and displayed. Lastly, counter

values and accumulation data are displayed.

FTUMan has 6 kinds of Mesurement window. The measurement value updates per 1 second.

9.2.7.1 BASIC VALUE

Operators can check the basic value like load or source volatage, current including RMS, Phase

Angle and True RMS also apparent, active and reactive power. And it shows unbalance frequency,

temperature and so on.

Figure 9-21 Basic Mesurement Window



9.2.7.2 SEQUENCE VALUE

It shows zero, positive and negative sequence of source or load voltage and current.

Fiqure 9-22 Sequence Value Window



9.2.7.3 POWER

You can check active, reactive and apparent power of each phase or 3-phase. It also shows lag

of each phase or lead.

Fiqure 9-23 Power Winodw



9.2.7.4 ENERGY

FTU-R200 provies imported or exported energy according to conductive, inductive energy of

each phase or 3-phase total.

Fiqure 9-24 Energy Window



9.2.7.5 HARMONICS

It displays THD and each harmonics value of voltage and current. It shows from 2nd to 31st per 1

second.

Fiqure 9-25 Harmonics Window



9.2.7.6 COUNTER

It basically shows restart, fault, PQM and THD counter and total interruption time.

Fiqure 9-26 Counter Window

Restart Show restarts time and its count.

Fault Counter Show the total fault count of each, neutral phase and Switch

Trip.

PQM Counter Show the short-duration voltage variation event count.

Total Interruption Time Show the total interruption time.

THD Counter Show the each or total phase’s current and voltage THD counts.



9.2.8 STATUS

In status window, all the status indications and command are displayed.

Figure 9-27 Status Window

When operator supervises some command in status window, this window generated. Upper box

shows device name, bottom box displays command name. If you click the ‘OK’ button, command

will be operated and window will be disappeared.

Figure 99-28 Commnad Window



9.2.9 WAVEFORM

In waveform window displays Fault and PQM waveforms list stored in FTU-R200.

FTU-R200 can record and store the data for up to 8 faults, up to 6 PQM and 1 waveform by

manual triggering. And each waveform has the data of 20 cycles at 128 samples.

How to upload waveforms are as follow. First, by using the ‘Upload’ command reads a list of

stored waveforms on the FTU-R200.

Figure 9-29 Waveform List Uploaded

To import the waveform from FTU-R200, select a row and double click, you upload the following

message window appears.



Figure 9-30 Message Window

If you click the ‘OK’ button, opens standard Windows Save As dialog box and enter the file name,

and click the Save button. And then will start uploading waveform.

The follwing window shows the progress for uploading.

Figure 9-31 Progress Window

The file is stored in the COMTRADE file format by converting. The stored file is avalilable the

waveform analysis by EvalTool. The EvalTool is explained in the Section 12. And, in waveform

window has a following pop-up menu. In the Tree View, select ‘WAVEFORM’ and press the right-

click pop-up menu is avaliable.

Fiqure 9-32 Pop-up Menu for Waveform Window

Upload Read waveform list from FTU-R200.

Manual Trigger Capture current waveform by manual triggerring.

Clear Fault Waveforms Delete all fault waveform stored.

Clear PQM Waveforms Delete all PQM waveform stored.



10 I/O CONFIGURATION TOOL

10.1 OVERVIEW

The ‘IO Config’ tool allows FTU users to custom I/O mappings.

Figure 10-1 Overview of IOConfig Tool

The I/O mapping is created using the tool and saved to an IO File (*.iom). Once a valid file has

been created, it is linked to the Recloser device.

The IOConfig tool is intended to be used off-line only. Mappings are created, saved and linked

to FTUMan while disconnected from the FTU. Once these tasks have been completed the user

connects to the device and writes the new mapping into the Recloser.

Warning: Make sure the IOConfig Tool is closed after a mapping has been edited. If the

Tool is left open while the Automatic Data Retriaval feature is running it may attempt to

update a mapping file that is already open in the Tool. This will either cause the read



operation to fail or result in a situation where the newly read file differs from the file

open within the Tool.

10.2 OPERATION OF IOCONFIG

To start the IOConfig Tool selects ‘Tools – IO Configration’ from the FTUMan menu. When you

run the IOConfig Tool, main screen is displayed as show in following figure. There are two tabbed

pages in the IOConfig Tool.

Figure 10-2 Main Screen of IOConfig Tool



10.2.1 MENU

The File Menu has the following options.


Open Closes the current file and opens a standard window file selection dialog. An

existing IO File (*.iom) can be selected and opened.

Save Saves the current file to the hard drive. If the file is new and this is the first time

it has been saved, the Save As dialog will be opened allowing the user to type in

a name before saving.

Save As Opens a standard Windows Save As dialog box. This allows an existing file to be

saved under a new name.


The Comm Menu is explained in the Section 9.2.1.2 Comm.

The View Menu is explained in the Section 9.2.1.5 View.

The Help Menu opens a window for IOConfig’s program version and information.

10.2.2 TOOLBAR

Below the menu is a toolbar with 9 buttons.

Figure 10-3 Toolbar of IOConfig



About Opens a window for IOConfig’s program version and

information.

Once you Press the Upload or Download button, the follwing window appears. This window

determines the types of data read or write.



Figure 10-4 Select Widow

10.2.3 INPUT

FTU-R200 has 10 inputs. Input is created by filling the fields on the Input tab. Each column is

defined as follows.

Figure 10-5 Input Tab

Name Input name is defined.

Type of the characters is limited to 11 characters.

Note: 0~3 of 4 input points is fixed.

Debounce Time The minimum time to retain status change.

Like, it prevents making useless information against chattering

in the point

Invert Specifies whether the point will be inverted.

Blk.Open To open blocked

Blk.Close To close blocked

Ext.Trip To trip using external input

Ext. Close To close using external input



10.2.4 OUTPUT

FTU-R200 has 4 relay outputs and 2 photoMOS relay outs. Output is created by filling the fields

on the Output tab. Eash column is defined as follows.

Figure 10-6 Output Tab

Name Output name is defined.

Type characters are limited to 11 characters.

Only index number of 3 is changed.

Pulse Time Set a pulse command.

Control Output Select type of PhotoMOS or Contact Relay for OPEN and

CLOSE.



11 DNP3.0 INDEX CONFIGURATION TOOL

11.1 OVERVIEW

Custom DNP3.0 point index maps can now be created and loaded into FTU directly from

DNPConfig. The mappings is created using the tool and saved to a DNP3.0 mapping file (*.d3m).

Figure 11-1 Overview of DNPConfig

The DNPConfig tool is intended to be used off-line only. Mappings are created, saved and

linked to FTUMan while disconnected from the FTU. Once these tasks have been completed the

user connects to the device and writes the new mapping into the Recloser.

Warning: Make sure the DNPConfig Tool is closed after a mapping has been edited. If

the Tool is left open while the Automatic Data Retriaval feature is running it may attempt

to update a mapping file that is already open in the Tool. This will either cause the read



operation to fail or result in a situation where the newly read file differs from the file open within

the Tool.

11.2 OPERATION OF DNPCONFIG

To start the DNPConfig Tool selects ‘Tools – DNP3.0 Index Configration’ from the FTUMan

menu. When you run the DNPConfig Tool, main screen is displayed as show in following figure.

There are 4 tabbed pages, Binaty Input, Binary Output, Analog Input and Counter, in the

DNPConfig Tool.

Figure 11-2 Main Screen of DNPConfig



The DNPConfig tool allows the user to build custom mapplings to suit their own application.

Points are added by selecting a row in PID Columns on one of the tabbed pages then double

clicking point from the Configuration Tool Box or entering index number in configuration tool box

defined. Points are deleted by selecting a row and pressing ‘Delete’ on the keyboard or entering

‘0’. The PID Number ‘0’ means is not used anymore. You can choose to either shift all the rows

below up one, or leave the entire row blank.

The DNPConfig tool allows the following.

Up to 128 Binary Input

Up to 32 Binary Output

Up to 512 Analog Input

Up to 128 Counter

11.3.1 MENU



Open Closes the current file and opens a standard window file selection dialog.

An existing DNP File (*.d3m) can be selected and opened.

Save Saves the current file to the hard drive. If the file is new and this is the first

time it has been saved, the Save As dialog will be opened allowing the user

to type in a name before saving.

Save As Opens a standard Windows Save As dialog box. This allows an existing file

to be saved under a new name.


The Comm Menu is explained in the Section 9.2.1.2 Comm.

The View Menu is explained in the Section 9.2.1.5 View.

The Help Menu opens a window for DNPConfig’s program version and information.



11.3.2 TOOLBAR

Figure 11-3 Toolbar of DNPConfig

Tool Shows or hides a window the DNP3.0 Configuration tool box.



About Opens a window for DNPConfig’s program version and information.

Pressing Upload or Download button, the follwing window appears. This window determines the

types of data read or write.

Figure 11-4 Select Widow



11.3.3 CONFIGURATION TOOL BOX

The configutation tool box panel is launched by clicking the Tool button.

Figure 11-5 Configuration Tool Box

The toolbox contains every available point for FTU-R200. The toolbox displays different points

depends on which tab selected. For example, if the Counters tab is selected then only accumulators

will be displayed on the list.

11.3.4 BINARY INPUT



Binary inputs are used to report the status of binary points.

Figure 11-6 Binary Input Tab

Index Specifies the DNP ID Number of the point

Range : 0 to 127

PID Specifies number as defiend in the configuration tool box.



The PID Number’s ‘0’ meaning is not used anymore. Range : 0 to 59

Name The name of the points as defiend in the configuration tool box.

This field can be changed in two ways:

Selecting the cell then double clicking a point in the configuration

tool box.

Entering PID number as defiend in configuration tool box.

Class 0~3 The DNP3.0 class of the point. The default class can be modified by

checking from the checkbox.

COS Select event type, COS(Change of state) or SOE(Sequence of Events)

Invert Specifies whether the point will be inverted. If the point is inverted it will

be transmitted when the condition is false than true.

DNP3.0 Classes

There are four classes in DNP3.0. These are defined as follows:

0 Class 0 is not an event class. It is used when reporting current (static) data values and

not changes of state events.

Note: Setting a point to Class 0 will prevent the controller’s protocol handler from

reporting change of state events for that point to the master station. The point still

remains accessible through static data polls.

1 Class 1 used to report high priority events. Events in this class take precedence.

2 Class 2 used to report medium priority events.

3 Class 3 used to report low priority events.

11.3.5 BINARY OUTPUT

Binary Outputs are used to perform operations on the Recloser device and change setting.



Figure 11-7 Binary Output Tab


Range : 0 to 31


The PID Number ‘0’ means is not used anymore.

Range : 0 to 10



Selecting the cell then double clicking a point in the configuration

tool box.


11.3.6 ANALOG INPUT



Analog Points are used to transmit analog data such as line currents, voltages and contact life.

Analog intputs are created by adding points as required, then modifying the parameters from

defaults if necessary.

Figure 11-8 Analog Input Tab


Range : 0 to 511




The PID Number ‘0’ means is not used anymore.

Range : 0 to 331



Selecting the cell then double clicking a point in the configuration tool

box.


Class 0~3 The DNP3.0 class of the point. The default class can be modified by checking

from the checkbox.


Scale The scale is used to multiply the reported analog value by the amount enterd.

For example, scaling the Ia RMS value by a multiple of ten will change the

reported value from zero decimal points to one decimal point (i.e:9 to 9.0)

Default Value: 1, Range: 1,10,100,1000

Deadband Display the deadband value for the point. The analog point value must change

by more than the deadband amount before it is reported.

11.3.7 COUNTER

Counters are used to count data and events such as Trips, Protection Pickups, Faults and

Accumulated kWh.



Figure 11-9 Counter Tab


Range : 0 to 127


The PID Number’s ‘0’ means are not used anymore.



12 WAVEFORM EVALUATION TOOL

12.1 OVERVIEW

The Waveform data upload from FTU-R200 through the above setting program are analyzed in

this evaluation tool. Graphs of currents/voltages and operation of protection elements are

displayed, and instantaneous/RMS current and voltage values, phase angles and time information

Range : 0 to 66



Selecting the cell then double clicking a point in the configuration tool

box.


Class 0~3 The DNP3.0 class of the point. The default class can be modified by checking

from the checkbox.




at tracker position are presented. If 2 trackter one is moving with left mouse button and the other

with right mouse button are used, time difference between two points is presented and it becomes

the ruler for correct operation of protection element as setting. And, harmonics up to 31st and THD

(Total Harmonic Distortion) also show up.

Recorded waveforms can be uploaded to FTUMan in local site. After uploading stored to the

COMTRADE file format. These waveform data saved as COMTRADE file format and compatible

with other analyzing tool.

COMTRADE file

Comtrade (COMmon format for Transient Data Exchange for power systems) is a file

format for oscilloscops data. It is used by many leading coñpanies for the oscilloscops

used in high voltage substations. It has been standardised by the IEEE.

Figure 1212-1 Overview of EvalTool

12.2 OPERATION OF EVALTOOL

To start the EvalTool selects ‘Tools – Waveform Evaluation Tool’ from the FTUMan menu. The

tool has meter view and scroll view for graph.



Figure 12-2 Main Screen of EvalTool

12.2.1 MENU


Open Closes the current file and opens a standard window file selection dialog. An

existing Data File (*.dat) can be selected and opened.


The Option Menu has the following options.

Graph Opens analog and digital graph select window..



Figure 12-3 Graph Select Window

Harmonic Open a window for voltage and current harmonics.

Fiqure 12-4 Haramonic List Window

Move Change the position of the screen.

Zoom The screen to yellow line center to shrink or enlarge the size.

The Help Menu opens a window for EvalTool’s program version and information.

12.2.2 TOOLBAR



Figure 12-5 Toolbar of EvalTool

Graph Show the entire graph

Harmonic List Check the harmonic list

Move-First Move to the beginning graph

Move-Double left Show the prior 2-step

Move-Left Show the prior 1-step

Move-Right Show the posterior 1-step

Move-Double right Show the posterior 2-step

Move-End Move to the last graph

Zoom In Enlarged image

Zoom out Shirink image

Zoom All Enlarge all image

instruction manual of recloser controller_r-200

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