GE P741 Technical Manual page 260

Busbar differential protection relay
Table of Contents

Advertisement

P74x/EN PL/Na7
(PL) 7-26
DDB
Relay
No.
P742
261
Dead Zone Fault
P742
262
Dead Zone
Phase
P742
263
Dead Zone Earth
P742
264
Config OK
P742
265
Config Error
P742
266
Config Error
P742
267
Config. Valid
P742
268
Topology valid
P742
269
Topo/Set valid
P742
270
All Prot Blocked
P742
288
I> Any Trip
P742
289
CBAvailabToTrip
P742
290
BF Trip Request
P742
294
INP Block
87BB/P
P742
295
INP Block
87BB/N
P742
296
I> No Trip
P742
297
CBNotAvailToTrip PSL Input Signal
P742
298
BFTripNoRequest PSL Input Signal
P742
305
Ctrl CB Trip
P742
306
Ctrl CB Close
PL
P742
307
PU Overhaul
mode
P742
308
50BF Disabled
P742
311
50BF Disabled
P742
312
Overhaul Mode
P742
314
I>BB Enabled
P742
315
Trip Rel Latched
P742
316
I>2 Block BB ON
P742
317
IN>2 Block BB
ON
P742
318
Reset Trip Relay
P742
319
Topo/Set
Changed
P742
320
Q1 Closed
P742
321
Q1 Status Alarm
P742
330
Q6 Closed
P742
331
Q6 Status Alarm
P742
332
CB Closed
P742
333
CB Healthy
P742
336
Q1 Status Forced PSL Input Signal
P742
341
Q6 Status Forced PSL Input Signal
P742
342
CB Status Forced PSL Input Signal
P742
343
Forced Mode ON
P742
344
CB Aux. 52a
P742
345
CB Aux. 52b
English Text
Type
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Output
Signal
PSL Output
Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Output
Signal
PSL Input Signal
PSL Output
Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
PSL Input Signal
Source
Local Protection
Fault in the dead zone
Local Protection
Fault in the dead zone on a phase
Local Protection
Fault in the dead zone on the neutral
Relay Integrity
Correct configuration
Relay Integrity
Configuration error
Relay Integrity
Configuration error
Scheme Integrity
Valid Setting configuration
Scheme Integrity
Valid Topology file
Scheme Integrity
Wrong Topology address
Commissioning
All the protections (CU & PU) disabled
Phase Overcurrent
Overcurrent Trip
Scheme Integrity
Complement of ddb 297
50BF Protection
External or internal Breaker failure trip order
request (50BF) Logical OR of DDB 122, 172
and 173
PSL
Logic input to block the 87BB trip when the fault
is detected by the fault element
PSL
Logic input to block the 87BB trip when the fault
is detected by the earth fault element
Phase Overcurrent
Complement of ddb 288
Scheme Integrity
Logical OR of ddb 121 and 270
50BF Protection
Complement of ddb 290
Manual
Manual Trip Order of the Circuit Breaker
Functionality
Manual
Manual closing order of the Circuit Breaker
Functionality
Commissioning
PU in overhaul mode
Commissioning
PU in 50BF blocked mode Alarm
Commissioning
To switch the PU in 50BF blocked mode
Commissioning
To switch the PU in overhaul mode
Local protection
Overcurrent Local trip confirmation
Local protection
Trip Relays Latched
87BB protection
Fast external phase fault criterion to block the
connected zone enabled
87BB protection
Fast external neutral fault criterion to block the
connected zone enabled
Commissioning
To reset the Trip relays
Commissioning
Change on topology or configuration
PSL
Isolator 1 closed (not (Q1 Aux. (89b) AND Q1
Aux. (89a)))
Scheme Integrity
Isolator 1 discrepancy (Q1 Aux. (89b) = Q1
Aux. (89a) for too long
PSL
Isolator 6 closed (not (Q6 Aux. (89b) AND Q6
Aux. (89a)))
Scheme Integrity
Isolator 6 discrepancy (Q6 Aux. (89b) = Q6
Aux. (89a) for too long
PSL
Circuit Breaker closed (not (CB Aux. (52b) AND
CB Aux. (52a)))
PSL
Complement of ddb 121
Commissioning
Isolator 1 status position forced open (by
default) or closed
Commissioning
Isolator 6 status position forced open (by
default) or closed
Commissioning
CB status position forced open (by default) or
closed
Commissioning
When the forced positions of the CB and the
Isolators are used (during commissioning test)
CB Monitoring
ddb 123 or Logical OR of ddb 125 and 127 and
129
CB Monitoring
ddb 124 or Logical AND of ddb 126 and 128
and 130
Programmable Logic
MiCOM P741, P742, P743
Description

Hide quick links:

Advertisement

Table of Contents
loading

This manual is also suitable for:

P742P743

Table of Contents