x/EN PL/Na7
7-
MiCOM P74
Relay
English Text Type Source Description
Starting Disturbance Recorder
50BF backtrip request by opto input
Logical OR of DDB 216 to 223
PSL (50BF Backtrip
protection)
External Breaker failure trip order (50BF) of
zone 1 opto input
PSL (50BF Backtrip
protection)
External Breaker failure trip order (50BF) of
zone 8 opto input
Differential fault detected by the Check Zone
Differential fault current in phase A
Differential fault current in phase B
Differential fault current in phase C
Trigger for the Fault Recorder
Communication error to at least 1 PU
Warning: fibre communication to be changed
48V Field Voltage Failure
Differential fault current in zone 1
Differential fault current in zone 8
Programmable Function Key LED 1 Green is
energized
Assignment of signal to drive output Function
Key LED 1 Green.
This LED is associated with Function Key 1.
To drive function key LED, yellow DDB 692 and
DDB 693 must be active at the same time
Programmable Function Key LED 1 Red is
energized
Red
Assignment of signal to drive output Function
Key LED 1 Red.
This LED is associated with Function Key 1
Programmable Function Key LED 10 Green is
energized
Grn
Assignment of signal to drive output Function
Key LED 10 Green.
This LED is associated with Function Key 10.
To drive function key LED1 yellow, DDB 710
and DDB 711 must be active at the same time
Programmable Function Key LED 10 Red is
energized
Red
Assignment of signal to drive output Function
Key LED 10 Red.
This LED is associated with Function Key 10
Function Key 1 is activated. In ‘Normal’ mode it
is high on key press and in ‘Toggle’ mode
remains high/low on single key press
Function Key 10 is activated. In ‘Normal’ mode it
is high on key press and in ‘Toggle’ mode
remains high/low on single key press
The IED is not subscribed to a publishing IED in
the current scheme
InterMiCOM Channel Failure Alarm
InterMiCOM Data Channel Detect Fail
InterMiCOM indication that Loopback testing is
in progress
InterMiCOM Message Failure Alarm
Logic opto input 87BB blocking the 3 phases in
zone 1
Logic opto input 87BB blocking the 3 phases in
zone 8
PSL (87BB SEF
Busbar Protection)
87BB SEF protection algorithm blocking of zone
1 opto input
PSL (87BB SEF
Busbar Protection)
87BB SEF protection algorithm blocking of zone
8 opto input
Maintenance Mode 1 (87BB monitoring) of zone
1 opto input
To Next Page
Loading...
