GE P742

Programmable Logic
P74x/EN PL/N
a7
MiCOM P74
1, P742, P743
(PL) 7-
25
PL
Relay
DDB
No.
English Text Type Source Description
P742
208
Zone 8 Off
PSL Input Signal
CU Information
Zone 8 in commissioning mode or blocked
by a Circuitry fault or a PU error
P742
215
Zone 1 Off
PSL Input Signal
CU Information
Zone 1 in commissioning mode or blocked
by a Circuitry fault or a PU error
P742
216
Trip Zone 8
PSL Input Signal
CU Information
Trip of Zone 8 (87BB, 50BF or manual)
P742
223
Trip Zone 1
PSL Input Signal
CU Information
Trip of Zone 1 (87BB, 50BF or manual)
P742
224
I>BB Start A
PSL Input Signal
Phase Overcurrent
Local overcurrent phase A Trip confirmation for
87BB or 50BF (CU) trip order
P742
225
I>BB Start B
PSL Input Signal
Phase Overcurrent
Local overcurrent phase B Trip confirmation for
87BB or 50BF (CU) trip order
P742
226
I>BB Start C
PSL Input Signal
Phase Overcurrent
Local overcurrent phase C Trip confirmation for
87BB or 50BF (CU) trip order
P742
227
IN>BB Start
PSL Input Signal
Earth Fault
Local overcurrent Trip confirmation for the
neutral
P742
228
I>BB Block Ph A
PSL Input Signal
Phase Overcurrent
Local overcurrent phase A to block the 87BB on
external fault
P742
229
I>BB Block Ph B
PSL Input Signal
Phase Overcurrent
Local overcurrent phase B to block the 87BB on
external fault
P742
230
I>BB Block Ph C
PSL Input Signal
Phase Overcurrent
Local overcurrent phase C to block the 87BB on
external fault
P742
231
IN>BB Block
PSL Input Signal
Earth Fault
Local overcurrent earth to block the 87BB on
external fault
P742
232
Saturation ph A
PSL Input Signal
Saturation
Saturation on phase A
P742
233
Saturation ph B
PSL Input Signal
Saturation
Saturation on phase B
P742
234
Saturation ph C
PSL Input Signal
Saturation
Saturation on phase C
P742
235
Current Overflow
PSL Input Signal
Saturation
Fibre optic Maximum primary current encoding
exceeded
P742
236
Max Flux ph A
PSL Input Signal
Saturation
Maximum flux reached in the phase A CT
P742
237
Max Flux ph B
PSL Input Signal
Saturation
Maximum flux reached in the phase B CT
P742
238
Max Flux ph C
PSL Input Signal
Saturation
Maximum flux reached in the phase C CT
P742
239
Offset Chan
ABCN
PSL Input Signal
Saturation
Offset current read by the Analog board Phase
A, B, C or N
P742
240
Predict err ph A
PSL Input Signal
Saturation
Variation error phase A (derived current)
P742
241
Predict err ph B
PSL Input Signal
Saturation
Variation error phase B (derived current)
P742
242
Predict err ph C
PSL Input Signal
Saturation
Variation error phase C (derived current)
P742
244
Sat ADC ph A
PSL Input Signal
Saturation
Analog to Digital Converter of phase A current
saturated
P742
245
Sat ADC ph B
PSL Input Signal
Saturation
Analog to Digital Converter of phase B current
saturated
P742
246
Sat ADC ph C
PSL Input Signal
Saturation
Analog to Digital Converter of phase C current
saturated
P742
247
Sat ADC Neutral
PSL Input Signal
Saturation
Analog to Digital Converter of the neutral
current saturated
P742
248
Delta IA
PSL Input Signal
Saturation
Variation detected on phase A (not used)
P742
249
Delta IB
PSL Input Signal
Saturation
Variation detected on phase B (not used)
P742
250
Delta IC
PSL Input Signal
Saturation
Variation detected on phase C (not used)
P742
251
Delta IN
PSL Input Signal
Saturation
Variation detected on the neutral (not used)
P742
252
Fibre Com Error
PSL Input Signal
Relay Integrity
Fibre communication to the CU error
P742
253
Fibre Com Worn
PSL Input Signal
Relay Integrity
Warning: fibre communication to be changed
P742
254
Acq Error 3Io
PSL Input Signal
Relay Integrity
Sample acquisition error: 3 x Io <> In
P742
255
PU CT Fail IN
PSL Input Signal
Scheme Integrity
Internal PU CT failure
P742
256
Internal Trip
PSL Input Signal
Local Protection
Triphase Trip (87BB, 50BF(CU), I>, IN> or
manual zone trip (CU)).
Trip command directly applied to relay 1, 2, 3
(without PSL)
P742
257
Trip 87BB
PSL Input Signal
87BB Busbar
Protection
Busbar trip order (87BB), general information
common to all PUs, the PU can be connected
to an healthy zone
P742
258
Trip 87BB Locked
PSL Input Signal
Scheme Integrity
Busbar trip order blocked by the CU
commissioning mode or Circuitry fault
P742
259
Trip 50BF (CU)
PSL Input Signal
50BF Backtrip
Protection
Breaker fail trip order (50BF), general
information common to all PUs, the PU can be
connected to an healthy zone
P742
260
Man.Trip zone
PSL Input Signal
Commissioning
Manual Trip Order of a zone, general
information common to all PUs, the PU can be
connected to an healthy zone