x/EN PL/Na7
7-
MiCOM P74
Relay
English Text Type Source Description
Allows user to control a binary signal which can be
mapped via SCADA protocol output to other
1st Stage Overcurrent Start A
1st Stage Overcurrent Start B
1st Stage Overcurrent Start C
blocking of the 1
st
stage overcurrent time delay
1st Stage Overcurrent Trip 3 phase
Fast external phase fault criterion to block the
connected zone enabled
2nd Stage Overcurrent Start A
2nd Stage Overcurrent Start B
2nd Stage Overcurrent Start C
blocking of the 1
st
stage overcurrent time delay
2nd Stage Overcurrent Trip 3 phase
Local overcurrent phase A to block the 87BB on
external fault
Local overcurrent phase B to block the 87BB on
external fault
Local overcurrent phase C to block the 87BB on
external fault
Overcurrent Local trip confirmation
Local overcurrent phase A Trip confirmation for
87BB or 50BF (CU) trip order
Local overcurrent phase B Trip confirmation for
87BB or 50BF (CU) trip order
Local overcurrent phase C Trip confirmation for
87BB or 50BF (CU) trip order
InterMiCOM Channel Failure Alarm
InterMiCOM Data Channel Detect Fail
InterMiCOM indication that Loopback testing is in
progress
InterMiCOM Message Failure Alarm
1st Stage Earth Fault Start
blocking of the 2
nd
stage earth fault time delay
1st Stage Earth Fault Trip
Fast external neutral fault criterion to block the
connected zone enabled
2nd Stage Earth Fault Start
Blocking of the 2
nd
stage earth fault time delay
2nd Stage Earth Fault Trip
Local overcurrent earth to block the 87BB on
external fault
Local overcurrent Trip confirmation for the neutral
Logic input to block the 87BB trip when the fault is
detected by the earth fault element
Logic input to block the 87BB trip when the fault is
detected by the fault element
Can be created automatically by the PSL
Can be created automatically by the PSL
Retrip triphase due to a 87BB trip initiation (at
tBF1)
InterMiCOM IM1 Signal Input - is driven by a
message from the remote line end
InterMiCOM IM8 Signal Input - is driven by a
message from the remote line end
InterMiCOM IM1 Signal Output - mapping what will
be sent to the remote line end
InterMiCOM IM8 Signal Output - mapping what will
be sent to the remote line end
Triphase Trip (87BB, 50BF(CU), I>, IN> or manual
zone trip (CU)).
Trip command directly applied to relay 1, 2, 3
The IP address of the IED is already used by
another IED
Programmable LED 1 Green is energized
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