CHAPTER 7: MAINTENANCE
M4 BREAKER MONITOR
350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
7–15
M4 Breaker monitor
The status of the breaker trip and close coils, as well as the trip and close circuits, can be
monitored under
MAINTENANCE > M4 BKR MONITOR
. In the case where a breaker coil or
circuit fails, the relay will display the message "Unhealthy" for the corresponding coil.
Further information on the breaker is provided under
BKR TRIP COUNTER
, where the
350 stores the number of trips. The counter can be reset under
M3 RESET COUNTERS >
RST BKR TRIP COUNT
set to "Yes".
PATH
:
MAINTENANCE > M4 BKR MONITOR
TRIP COIL
Healthy
Range: Healthy, Unhealthy
CLOSE COIL
Healthy
Range: Healthy, Unhealthy
BKR TRIP COUNTER
5
Range: 0 to 10000 trips
BKR ALARM COUNTER
5
Range: 0 to 10000 trips
LAST TRIP TIME
5
Range: 0 to 10000 ms
AVG TRIP TIME
5
Range: 0 to 10000 ms
LAST CLOSE TIME
5
Range: 0 to 10000 ms
AVG CLOSE TIME
5
Range: 0 to 10000 ms
LAST CHARGE TIME
5
Range: 0 to 60000 ms
AVG CHARGE TIME
5
Range: 0 to 60000 ms