p63x presentation

MiCOM P63X Transf. Differential Protection

Mathew Koshy

April 2002April 2002

ProtectionProtection

MiCOM P631/632/633/634Transf. Differential ProtectionApplications

Two Winding Transformers

Unit TransformersThree Winding Transformers

Reactors

Generators

Ring Bus Fed Windings

Auto Transformers

Motors

MiCOM P631/632/633/634Transf. Differential ProtectionMain Functions

ANSI No. P631 P632 P633 P634

Differential protection 87 2 wind. 2 wind. 3 wind. 4 wind.

Restricted earth fault protection 87G – 2 3 3

Definite-time O/C protection 50 2 2 3 3

Inverse-time O/C protection 51 2 2 3 3

Thermal overload protection 49 1 1 2 2

Over/undervoltage protection 27, 59 – 1 1 1

Over/underfrequency protection 81 – 1 1 1

Overexcitation protection 24 – 1 1 1

Limit value monitoring 2 2 3 3

Programmable logic 1 1 1 1

P631 P632 P633 P634

Measuring inputs

Phase currents 2 x 3 2 x 3 3 x 3 4 x 3

Residual current or neutral-point current – 2 3 3

Voltage – 1 1 1

Binary inputs and outputs

Optical coupler inputs (per order) 4 4 to 10 4 to 16 4 to 10

Add. optical coupler inputs (optional) – 24 24 24

Output relays (per order) 8 to 14 8 to 22 8 to 30 8 to 22

Analogue inputs and outputs (optional)

0 to 20 mA input – 1 1 1

PT 100 input – 1 1 1

0 to 20 mA outputs – 2 2 2

MiCOM P631/632/633/634Transf. Differential ProtectionInputs and Outputs

D IFF

Differential Protection

MiCOM P631/632/633/634Functional Details

3-system differential protection for transformers, generators and motors

2, 3 or 4 bias inputs per phase Amplitude and vector group matching Zero sequence current filtering for each winding Triple-slope tripping characteristic Unrestrained instanteneous differential element Magnetizing inrush stabilization (second harmonic), with/without

cross-blocking Overflux blocking (fifth harmonic) Through-fault stability with c.t. saturation detection

GGC

GG

G

TR IP

A LA R M

O U T O F S E R V IC E

H E A LTH Y

G

G

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

GGC

GG

G

G

G

TR IP

A LA R M


H E A LTH Y

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

GGC

GG

G

G

G

TR IP

A LA R M


H E A LTH Y

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

P631 P632 P633 P634

GGC

GG

G

TR IP

A LA R M


H E A LTH Y

G

G

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

GGC

GG

G

TR IP

A LA R M


H E A LTH Y

G

G

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

MiCOM P631/632/633/634Differential ProtectionMain Features

A

B

CW ind ing a

Inom, C T, prim , a V nom, prim , a V nom, prim , b

Sref, prim = Snom, prim , max

Inom, C T, prim , b

A

B

C

W ind ing b

All you have to do: Simply set these nominal values!

MiCOM P631/632/633/634Differential ProtectionAmplitude Matching

MiCOM 30 SeriesTransf. Differential ProtectionAmplitude Matching: Factor kamp,z

C

B

A

C

B

A

N a N b

k amp,a k amp,b

a,x,amp)rel(

a,x(sec)

a,x)prim(

a,x I I I I )prim(b,x

(sec)b,x

)rel(b,xb,x,amp I I I I

MiCOM 30 SeriesTransf. Differential ProtectionAmplitude Matching: Restrictions

z,x

)prim(z,nom

)prim(ref

)prim(z,CT,nom

z,x)prim(z,ref

)prim(z,CT,nom

z,xz,ampz,x,amp I

V3

S

II

I

IIkI

The individual phase currents Ix,z are multiplied by the amplitude-matching factor kamp,z of the corresponding end

z.

5k z,amp 3k

k

1max,amp

max,amp

0.7k 1max,amp

Restrictions:

DIFF Reference power Sref 38.1 MVA (0.1 ... 5000.0)DIFF Ref. curr. Iref,a Not measuredDIFF Ref. curr. Iref,b Not measuredDIFF Ref. curr. Iref,c Not measuredDIFF Ref. curr. Iref,d Not measured

DIFF Matching fact. kam,a Not measuredDIFF Matching fact. kam,b Not measuredDIFF Matching fact. kam,c Not measuredDIFF Matching fact. kam,d Not measured

MiCOM 30 SeriesTransf. Differential ProtectionAmplitude Matching: Function Parameters

MAIN Inom C.T.prim.,end a 200 A (1 ... 50000)MAIN Inom C.T.prim.,end b 200 A (1 ... 50000)MAIN Inom C.T.prim.,end c 200 A (1 ... 50000)MAIN Inom C.T.prim.,end d 200 A (1 ... 50000)

MAIN Vnom prim., end a 110.0 kV (0.1 ... 1500.0)MAIN Vnom prim., end b 110.0 kV (0.1 ... 1500.0)MAIN Vnom prim., end c 110.0 kV (0.1 ... 1500.0)MAIN Vnom prim., end d 110.0 kV (0.1 ... 1500.0)

Calculated automatically by the relay read only!

MiCOM 30 SeriesTransf. Differential ProtectionAmplitude Matching: Example

Winding a

400 / 1 A

1000 / 1 A

1000 / 1 A

52.5 kV 10.5 kV

25 MVA

Iref,prim,a = 275 A

kamp,a = 1.455

Sref,prim = 25 MVA

Iref,prim,b = 1375 A

kamp,b = 0.727kamp,a / kamp,b = 2

Dy7

Winding b

A

B

CW ind ing a

0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 o r 11

A

B

C

W ind ing b

All you have to do: Simply set the vector group ID!

MiCOM 30 SeriesTransf. Differential ProtectionVector Group Matching

MiCOM 30 SeriesTransf. Differential ProtectionVector Group Matching

• No operation is carried out on the HV winding

(Winding “a”)

w.r.t vector group matching

• Vector group matching done only on LV side (winding

b/c) by

mathematical phasor operation

• How is vector group matching done on LV side?

Each LV amp. matched current vector is added to the

negative

of the trailing/leading current vector and then divided

by 3

in case of odd groups

Group No. Phasor Operation

1 I vec,z = 1/3 . (I amp,x,z – I amp,x+1,z)3 I vec,z = 1/3 . (I amp,x-1,z – I amp,x+1,z)5 I vec,z = 1/3 . (I amp,x-1,z – I amp,x,z)7 I vec,z = 1/3 . (I amp,x+1,z – I amp,x,z)

9 I vec,z = 1/3 . (I amp,x+1,z – I amp,x-1,z)

11 I vec,z = 1/3 . (I amp,x,z – I amp,x-1,z)

Meanings of abbreviations usedx phase A, B or C resp.

amp amplitude matched x+1 cyclically trailing phase

vec amplitude and vector group matched x-1 cyclically leading phase

z winding a, b, c or d resp.

Vector Group Matching for Odd numbered Vector Groups

Iamp,A ,a

Iamp,B,aIamp,C ,a Iamp,A ,b

Iamp,B,b

Iamp,C ,b

- Iamp,A ,bIamp,C ,b - Iamp,A ,b

1/ 3∙(Iamp,C ,b - Iamp,A ,b)

C

N a

5∙30°

B

A

N b

C

B

A

MiCOM 30 SeriesTransf. Differential ProtectionVector Group Matching: Transformer Yd5

A

B

C

W ind ing a

w ith I0 fi ltering w ithout I0 fi ltering

A

B

C

W ind ing b

All you have to do: Simply set ‘with‘ or ‘without‘!

MiCOM P631/632/633/634Differential ProtectionZero Sequence Current Filtering

Zero Sequence Filtering for Odd numbered Vector Groups

• The mathematical phasor operations done on the LV side for the vector group matching automatically filter out the zero sequence current component present

So for all D Y-n groups, no need to activate zero seq. filtering

For all Y-n D groups, zero seq. filtering to be activated for theHV winding only

• How is Zero Sequence current filtering done on HV side?

I_vec,y,z = I_amp,x,z - I_amp,zero,z

I_amp,zero,z = 1 . ( I_amp,A,z + I_amp,B,z + I_amp,C,z ) 3

MiCOM 30 SeriesTransf. Differential ProtectionVector Group Matching: Function Parameters

DIFF Vector grp. ends a-b 0 (0 ... 11)DIFF Vector grp. ends a-c 0 (0 ... 11)DIFF Vector grp. ends a-d 0 (0 ... 11)

Zero Sequence Current Filtering: Function Parameters

DIFF 0-seq. filt.a en.PS1 Yes DIFF 0-seq. filt.b en.PS1 Yes DIFF 0-seq. filt.c en.PS1 Yes DIFF 0-seq. filt.d en.PS1 Yes

Parameter Subset 1

019.020 MAIN Inom C.T.prim.,end a 200 A (1 ... 50000)019.021 MAIN Inom C.T.prim.,end b 200 A (1 ... 50000)019.022 MAIN Inom C.T.prim.,end c 200 A (1 ... 50000)

019.017 MAIN Vnom prim., end a 110.0 kV (0.1 ... 1500.0)019.018 MAIN Vnom prim., end b 110.0 kV (0.1 ... 1500.0)019.019 MAIN Vnom prim., end c 110.0 kV (0.1 ... 1500.0)

019.016 DIFF Reference power Sref 38.1 MVA (0.1 ... 5000.0)019.023 DIFF Ref. curr. Iref,a Not measured019.024 DIFF Ref. curr. Iref,b Not measured019.025 DIFF Ref. curr. Iref,c Not measured004.105 DIFF Matching fact. kam,a Not measured004.106 DIFF Matching fact. kam,b Not measured004.127 DIFF Matching fact. kam,c Not measured

019.010 DIFF Vector grp. ends a-b 0 (0 ... 11)019.011 DIFF Vector grp. ends a-c 0 (0 ... 11)

P630 Transformer Differential Protection Differential Protection (DIFF)

Amplitude and Vector Group Matching: Relay Settings

Calculated automatically by the relay read only!

Tripping CharacteristicTripping Characteristic

MiCOM 30 SeriesTransf. Differential ProtectionDefinition of Id and IR

c,y,vecb,y,veca,y,vecy,R

b,y,veca,y,vecy,R

c,y,vecb,y,veca,y,vecy,d

III2

1I

II2

1I

IIIIDifferential current

Amplitude and vector group matched currents

from ends a, b, ...

Restraining current

for 2 ends

for > 2 ends

for measuring system y

(1, 2 or 3 resp.)

MiCOM 30 SeriesTransf. Differential ProtectionTripping Characteristic

1 2 3 4

1

2

0

Id

IR

Load linefo r sing le- end in feed

Id>

m 1

m 2

IR,m2

Basic threshould value Id>, slope m1, second knee point IR,m2 and slope m2 are settable.

MiCOM 30 SeriesTransf. Differential ProtectionTripping Characteristic: First Section

1 2 3 4

1

2

0

Id

IR

Load linefor single-end infeed

Magnetizing currentcharacteristic

Id>

First section oftripping characteristic

The basic threshold value Id> takes into account the magnetizing current of the transformer.

MiCOM 30 SeriesTransf. Differential ProtectionTripping Characteristic: Second Section

1 2 3 4

1

2

0

Id

IR

Load linefo r sing le- end in feed

Id>

Transfo rm ation erro rcha racteristics

fo r tw o o r th reecurrent transfo rm er sets

Second section o ftr ipp ing cha racteristic

m 1

First knee po in t o ftr ipp ing cha racteristic

The slope m1 should correspond to the cumulative total error of the participating CT sets.

MiCOM 30 SeriesTransf. Differential Protection

In case of HV on-load tap changer device:

•Amplitude matching needs to be done for a mean nominal

voltage on HV side (a).

- Therefore, set : Vnom.prim.,a = Vnom,a,min x Vnom,a,max

- Also, m1 setting should be increased by a factor of:

Inom,(p),a,max - Inom,(p),a,mid

1 . (Inom,(p),a,max + Inom,(p),a,mid)

2

R1 2 3 4

1

2

0

Id

I


Id>

m1

Third section oftripping characteristic

m2Second knee point oftripping characteristic

IR,m2

•The second knee point must be set in accordance with the max. possible load current (4.Iref considered max.; like when a parallel X‘frmr has failed for P634) ;

•m2 to be set high (70%) for through fault stability

Tripping Characteristic: Third Section

MiCOM 30 SeriesTransf. Differential ProtectionTripping Characteristic: Function Parameters

DIFF Enable PS1 No

DIFF Idiff> PS1 0.20 Iref (0.10 ... 2.50)DIFF Idiff>> PS1 15 Iref (5 ... 30)DIFF Idiff>>> PS1 30 Iref (5 ... 30)DIFF m1 PS1 0.3 (0.2 ... 1.5)DIFF m2 PS1 0.7 (0.4 ... 1.5)DIFF IR,m2 PS1 4.0 Iref (1.5 ... 10.0)

DIFF Op.mode harm.bl. PS1 Not phase-selectiveDIFF RushI(2f0)/I(f0) PS1 20 % (10 ... 50)

DIFF Overflux.bl. en. PS1 No DIFF OverI(5f0)/(f0) PS1 20 % (10 ... 80)

Parameter Subset 1

1 2 3 4

1

2

0

Id

IR


Id>

m1

m2

IR,m2

MiCOM P631/632/633/634Differential ProtectionCharacteristic Equations:

•Id = Id> ; Area I

•Id = m1. ( IR - 0.5 Id>) + Id> ; Area II

•Id = m2. IR + Id> . (1 - 0.5.m1 ) + 4.(m1-m2) ; Area III

I

II

III

MiCOM P631/632/633/634Differential ProtectionHigh-set Differential thresholds:High-set Differential thresholds:

Restrained Highset:Restrained Highset:

•Above the adjustable threshold, Idiff>>, relay trips

irrespective of either the 2nd harmonic or the overfluxing

restraint blocks

Unrestrained HighsetUnrestrained Highset:

•Above the adjustable threshold, Idiff>>>, relay trips

irrespective of restraining current and the saturation

discriminator

MiCOM P631/632/633/634Differential Protection

Inrush stabilisationInrush stabilisation

•Since high inrush charging current flows only on the

connected side, important to stabilize the diff. element

•If ratio of I(2xf0) / I(f0) exceeds a set value in atleast one

of the phases, tripping is blocked

•No blocking if diff. Current exceeds Idiff>>

MiCOM P631/632/633/634Differential Protection

Overfluxing restraintOverfluxing restraint

•During overexcitation of transformer, core saturation sets

in and more magnetizing current is drawn; may lead to

maltripping.

•Fifth harmonic restraint facility provided

•If ratio of I(5xf0) / I(f0) exceeds a set value in atleast one

of the phases, tripping is blocked

•No blocking if diff. Current exceeds Idiff>>

Saturation Discriminator Stability with Saturated C.T.’s

ZA0912B

i1

i2

id

Inhibitpulses

id

with inhibit

•No blocking if diff. Current exceeds Idiff>>>

Saturation Discriminator Operation with Saturated C.T.’s

ZA0912B

i2

id

Inhibitpulses

With inhibitid

REF_1

Ground Differential Protection

REF_2 REF_3


MiCOM P631/632/633/634Ground Differential Protection

•Can be applied to Xfmr windings with grounded neutral

point where a C.T. in neutral to gnd. Path is available

•One Ground diff. Protn available per Xfmr winding

•Based on comparing the Vector sum of phase currents, IN

with the Neutral-point current IY

•The Diff. Protn. Applies under the condition of The Diff. Protn. Applies under the condition of uniformlyuniformly

defined current arrows relative to the Xfmr winding.defined current arrows relative to the Xfmr winding.

Both current arrows point either towards the Both current arrows point either towards the winding or winding or

away from itaway from it

MiCOM 30 SeriesGround Differential ProtectionAmplitude Matching:

IIref,N,zref,N,z = S = Srefref

3.V3.Vnom,znom,z

kkam,N,zam,N,z = I = Inom,znom,z

IIref,N,zref,N,z

kkam,Y,zam,Y,z = I = Inom,Y,znom,Y,z

IIref,N,zref,N,z

•wherewhere

am am : amplitude matched, : amplitude matched, z : winding z : winding

Inom,zInom,z : primary nominal current of the Main C.T.: primary nominal current of the Main C.T.

Inom,Y,z Inom,Y,z : primary nominal current of the Neutral C.T.: primary nominal current of the Neutral C.T.

= 0.2

Id,G /Iref

m = 1.005

1 1.5 20.5

0.5

1

1.5

IR,G/Iref

Fault current (internal fault)characteristicFault current (internal fault)characteristicfor transient saturation of the main C.T.’sfor transient saturation of the main C.T.’s

2

MiCOM P631/632/633/634Ground Differential ProtectionTripping Characteristic

Characteristic equation:

GR,Gd,G,d I+m>I=I

Definition of Id,G and IR,G:

CBAN,ampG,R

YY,ampCBAN,ampG,d

I,I,IkI

IkI,I,IkI

Id,G

>

refI

Ground Differential ProtectionOperation- External FaultsWinding a Winding b

A

B

C

A

B

C

IAE

IAE IN =(IA+IB+IC) =- IAE

IY =+ IAE

Therefore : IId,Gd,G = 0 = 0

IIR,GR,G = = IAE

P63XP63X

Ground Differential ProtectionOperation- Internal FaultsWinding a Winding b

A

B

C

A

B

C

IAE,p

IAE,n IN =(IA+IB+IC) =+ IAE

IY =+ IAE

(Assuming IAE,p = IAE,n = IAE)

Therefore : IId,Gd,G = 2. = 2. IAE

IIR,GR,G = = IAE

P63XP63X

D TO C 1

Definite-Time Overcurrent Protection

D TO C 2 D TO C 3


Definite-time overcurrent protection, three-stage, phase-selective Each function group (DTOC1, DTOC2, DTOC3) is freely assignable to a

winding Virtual winding may be defined for summation of currents from two

real windings(application on two breakers in a ring bus or breaker-and-a-half configuration)

3 separate measuring systems for phase currents, negative-sequence current and residual current

All 3 measuring systems operate independently of each other:

Settable operate delay per stage Sequence of all operate delays can be blocked

– through appropriately configured binary signal inputs or– per selection matrix via a binary signal input or– per programmable logic (LOGIC)

MiCOM P631/632/633/634Definite-Time O/C ProtectionMain Features

ID M T1

Inverse-Time Overcurrent Protection

ID M T2 ID M T3


Inverse-time overcurrent protection, single-stage, phase-selective Each function group (IDMT1, IDMT2, IDMT3) is freely assignable to a

winding Virtual winding may be defined for summation of currents from two

real windings(application on two breakers in a ring bus or breaker-and-a-half configuration)

3 separate measuring systems for phase currents, negative-sequence current and residual current

All 3 measuring systems operate independently of each other:

Choice of 12 different tripping time characteristics Accumulation of intermittend startings by means of a hold-time logic Sequence of all operate delays can be blocked


MiCOM P631/632/633/634Inverse-Time O/C ProtectionMain Features

TH RM 1

Thermal Overload Protection

TH RM 2


V< >

Over-/Undervoltage Protection


Definite-time overvoltage protection, two-stage

Definite-time undervoltage protection, two-stage:

Sequence of all operate delays can be blocked– through appropriately configured binary signal inputs or– per selection matrix via a binary signal input or– per programmable logic (LOGIC)

MiCOM P631/632/633/634Over-/Undervoltage ProtectionMain Features

f< >

Over-/Underfrequency Protection


Over-/underfrequncy protection, four-stage

All four stages operate independently of each other:

Operation modes:– Over-/underfrequency monitoring– Over-/underfrequency monitoring in conjunction with differential

frequency gradient monitoring (df/dt) for system decoupling applications

– Over-/underfrequency monitoring in conjunction with average frequency gradient monitoring (f/t) for load shedding applications

Settable operate delay Sequence of all operate delays can be blocked


MiCOM P631/632/633/634Over-/Underfrequency ProtectionMain Features

V/ f

Overexcitation Protection


V/f ratio based measurement

Alarm stage V/f> with definite time delay

Trip stage V/f>> with inverse time characteristic– Characteristic defined by 12 settable value pairs– Cooling time of thermal replica settable

Trip stage V/f>>> with definite time delay

Sequence of all operate delays can be blocked– through appropriately configured binary signal inputs or– per selection matrix via a binary signal input or– per programmable logic (LOGIC)

MiCOM P631/632/633/634Overexcitation ProtectionMain Features

Reset ratio 0.98

MiCOM P631/632/633/634Overexcitation ProtectionTripping Characteristic

V/ f

t

1.00 1.10 1.20 1.30 1.40 1.50 1.60

Vnom / fnom

1

10

100

V/ f> > >

V/ f> >

... ...

LO G IC

Programmable Logic


MiCOM P631/632/633/634Programmable LogicEmbedding of Programmable Logic

Configuration:

INPLOCPC

COMM1COMM2

Fixed Logic:

DIST, IDMT, DIFF, ...Configuration:

OUTPLEDLOCPC

COMM1COMM2

Control Inputs Trip and SignalsFunctions

MiCOM P631/632/633/634Programmable LogicEmbedding of Programmable Logic

Programmable Logic:

LOGIC

Configuration:

INPLOCPC

COMM1COMM2

Fixed Logic:

DIST, IDMT, DIFF, ...Configuration:

OUTPLEDLOCPC

COMM1COMM2

Control Inputs Trip and SignalsFunctions

MiCOM P631/632/633/634Transf. Differential Protection

HardwareHardware

P631 P632 P633 P634

Measuring inputs



Voltage – 1 1 1






0 to 20 mA input – 1 1 1

PT 100 input – 1 1 1



GGC

GG

G

G

G

TR IP

A LA R M


H E A LTH Y

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

GGC

GG

G

G

G

TR IP

A LA R M


H E A LTH Y

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

GGC

GG

G

G

G

TR IP

A LA R M


H E A LTH Y

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

GGC

GG

G

TR IP

A LA R M


H E A LTH Y

G

G

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

GGC

GG

G

TR IP

A LA R M


H E A LTH Y

G

G

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

GGC

GG

G

G

G

TR IP

A LA R M


H E A LTH Y

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

GGC

GG

G

G

G

TR IP

A LA R M


H E A LTH Y

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

GGC

GG

G

TR IP

A LA R M


H E A LTH Y

G

G

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

P631

GGC

GG

G

TR IP

A LA R M


H E A LTH Y

G

G

E D IT

= C LE A R

= E N TE R

= R E A D

C

MiCOM

P632 P633 P634

Screw Terminals for Pin Lugs

Screw Terminals for Ring Lugs

Models*

*Both Flush & Surface Mounted Case Designs available

40TE

84TE

P631 P632 P633 P634

Measuring inputs



Voltage – 1 1 1






0 to 20 mA input – 1 1 1

PT 100 input – 1 1 1


Inputs and Outputs

Pow er Supply ModuleProcessor Module

Communication Module

Transformer Module

: O

ptio

n

P A

01 02 03 04 05 06 07 08 09 10

01 02 03 04 05 06 07 08 09 10

V

4*I8*O

X

6*O

X

Y

4*I

24*I

X

6*I8*O

T

4*J

T

4*J1*U

Analog I/O Module

Binary I/O Module

MODULAR

P630 Hardware - Example (1) Module Location Diagram for P632 in Case 40 TE (Pin Terminals)

P631 P632 P633 P634

Measuring inputs



Voltage – 1 1 1






0 to 20 mA input – 1 1 1

PT 100 input – 1 1 1


P631 P632 P633 P634

Measuring inputs



Voltage – 1 1 1






0 to 20 mA input – 1 1 1

PT 100 input – 1 1 1


Inputs and Outputs

P630 Hardware Example (2) Module Location Diagram for P633 in Case 84 TE (Pin Terminals)

: O

ptio

n

Processor Module

Communication Module

Transformer Module

Power Supply Module

Binary I/O Module

Analog I/O Module

01 02 03 04 05 06 07 08 09 10

01 02 03 04 05 06 07 08 09 10

11

11

12

12

13 14 15 16 17 18 19 20 21

13 14 15 16 17 18 19 20 21

P A T

4*J1*U

T

4*J

T

4*J

X

6*I8*O

X

6*I8*O

X

24*I

Y

4*I

V

4*I8*O

X

6*O

P630 Serial Interfaces

Front PC RS 232 serial interface for local comm. using MiCOM S1

Rear Ports:Optional 2 remote Comm. ports : either RS 485 interface-twisted copper wire connection ORFibre Optic interface - FO cable connector

An optional IRIG-B interface is available for time synchronisation

P630 Connections

Current transformer connections to be given in accordance with the standard terminal connection diagram indicated on the type identification label

Example: P634 -74991196-301-401-601-801

Diagram: P634.401

It is essential that the grounding configuration shown in the diagram be followed. If a connection is in opposition, this can be taken into account in the settings at:

P63X/Parameters/Function/Global/Main/Conn meas.circ. IP,a/b/c/d

P631 P632 P633 P634

Measuring inputs



Voltage – 1 1 1






0 to 20 mA input – 1 1 1

PT 100 input – 1 1 1



GGC

GG

G

G

G

TRIPALARM

OUT OF SERVICE

HEALTHYEDIT

= CLEAR

= ENTER

= READ

C

MiCOM

Front Face

H5

H16H17

H1

H4

X6

LED interpretations 1

LED- “ALARM” :

Meaning : Internal fault detected OR Internal fault detected OR

Relay functioning hindrances like:Relay functioning hindrances like:

Calculated reference currents/matching factors Calculated reference currents/matching factors not not within permissible range or within permissible range or

amplitude matching factor conditions not amplitude matching factor conditions not satisfied satisfied

Action from operator: Read out the “Monitoring Signal Memory”

: P63X/Operations/Op.data.Rec./MT_RC

- Then clear the Mon. Signal Memory

- Try a Cold Restart (Full list of possible SFMON signals given in Guide, Chap. 10,

(Trouble shooting)

LED interpretations 2

LED- “OUT OF SERVICE” :

Meaning :

(1) Output relay has been blocked by user: (1) Output relay has been blocked by user:

Par/Func/Glob/OUTP/“Output.rel.block USER” “Yes”

(2) Device has been disabled by user: (2) Device has been disabled by user:

Par/Func/Glob/MAIN/ “Protection Enabled” “No”

(3) Trip command has been blocked by user: (3) Trip command has been blocked by user:

Par/Func/Glob/MAIN/ “Trip command block.USER” “Yes”

(4) SFMON has detected an internal fault: (4) SFMON has detected an internal fault:

( ALARM LED also lights up and output assigned to “Blocked/Faulty is energised )

Local Control Panel Operations

Following tasks can be handled from the LOC :

Readout and editing of settings

Readout of cyclically updated measured Operating data &

Logic state signals

Readout of operating data logs and monitoring signal logs

Readout of event logs and fault measured data after overload

situations and faults

Resetting of device and triggering of additional control

functions designed to support testing and commissioning

tasks

Local Control Panel Operations

To enter the EDIT mode :

(1) Activate the Global Change-enabling function: (1) Activate the Global Change-enabling function:

Oper/Cntrl&Test/LOC/“Par change enablePar change enable” “Yes”

(2) To activate the change, enter the passwordpassword

(3) For some functions, to edit the settings we need to disable the

device: : Par/Func/Glob/MAIN/ “Protection EnabledProtection Enabled” =“No”

Local Control PanelOperations

COLD RESTARTMany problems may occur (like Alarm LED) due to the fact that

the setting status of the device makes it difficult for the user to know what’s going on !

In such cases, perform a cold restart:

- This causes the device to reboot, all settings to revert to default values and all records to be cleared

- Prior to performing a cold restart, disable the protection:

P63X/Par/Func/Glob/MAIN/Protection Enabled = “No”

P63X/Oper/Ctrl&Test/MAIN/Cold Restart = “Execute”

Memory Readouts

The following memories are available:

Operating data memoryOperating data memory: Oper/Rec/OP_RC

- contains stored signals of actions that occur during operation such

as enabling or disabling of a function

Monitoring Signal memoryMonitoring Signal memory: Oper/Rec/MT_RC

- a signal entry due to internal fault detected by SFMON function or a setting configuration that hinders flawless functioning of the device

Event MemoryEvent Memory: Events/Rec/FT_RC : fault memories 1 to 8

Events/Rec/OL_RC : overload memories 1 to 8

Fault Logging, Fault Data Acquisition & Fault Recording Fault Measured Data (FT_DA):Fault Measured Data (FT_DA):

- - Fault duration

- Fault currents - phase and residual values of each winding

- Differential and restraining currents on all 3 phases

- Per unit Second and fifth harmonic levels of the differential current

- Maximum 8 records Fault Recorded Data (FT_RC)Fault Recorded Data (FT_RC) (Disturbance records):

- Phase currents of all four ends of the transformer

- - Residual current measured at the Neutral C.T.

- Voltage (1)

- Max 8 records, 16.4 sec. Fault Logging: Fault Logging:

- device stores protection signals logged during a fault

- Maximum 8 faults, 200 signals on each fault incident

Configuring & Enabling of Function Groups

In order to enable a function group (say Differential):

(1)ConfigureConfigure the desired function:

P63X/Par/Config/DIFF/Enable =Yes

(2)EnableEnable the desired function:

P63X/Par/Func/General/DIFF/General Enable.USER =Yes

(3)ActivateActivate the desired function in the parameter subset :

P63X/Par/Func/Par.Subset 1/DIFF/Enable =Yes

Some tips on configuring the Tripping Outputs

NOTE: Always use a “Trip command” for operating the trip coil

Procedure:

(1)ConfigureConfigure the trip command:

Example: P63X/Par/Func/Global/MAIN/Fct.assign.Trip.cmd.1=

#01 DIFF Trip signal OR #02 Manual Trip Signal

(2)Configure Configure the output relay:

Recommended: P63X/Par/Conf/OUTP/ Fct.assign.K2001 =

Gen.Trip command 1

p63x presentation

Documents

current exceeds

binary signal

optical coupler

outputsoptical

vector group

relay trips

primary nominal

time overcurrent