S10 Monitoring; Trip Counter; Breaker Failure - GE Multilin 489 Instruction Manual

5.11 S10 Monitoring

5.11.1 Trip Counter

TRIP

5.11.2 Breaker Failure

BREAKER
5–90
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PATH: SETPOINTS S10 MONITORING
TRIP COUNTER
[ ] ALARM: Off
ASSIGN ALARM
MESSAGE
RELAYS (2-5): ---5
TRIP COUNTER ALARM
MESSAGE
LEVEL: 25 Trips
TRIP COUNTER ALARM
MESSAGE
EVENTS: Off
When enabled, a trip counter alarm will occur when the
reached. The trip counter must be cleared or the alarm level raised and the reset key must
be pressed (if the alarm was latched) to reset the alarm.
For example, it might be useful to set a Trip Counter alarm at 100 trips, prompting the
operator or supervisor to investigate the type of trips that have occurred. A breakdown of
trips by type may be found in the
If a trend is detected, it would warrant further investigation.
PATH: SETPOINTS S10 MONITORING
BREAKER FAILURE
[ ] ALARM: Off
ASSIGN ALARM
MESSAGE
RELAYS (2-5): ---5
BREAKER FAILURE
MESSAGE
LEVEL: 1.00 x CT
BREAKER FAILURE
MESSAGE
DELAY: 100 ms
BREAKER FAILURE
MESSAGE
ALARM EVENTS: Off
If the breaker failure alarm feature may be enabled as latched or unlatched. If the 1 Trip
output relay is operated and the generator current measured at any of the three output
CTs is above the level programmed for the period of time specified by the delay, a breaker
failure alarm will occur. The time delay should be slightly longer than the breaker clearing
time.
TRIP COUNTER
Range: Off, Latched, Unlatched
Range: Any combination of Relays 2 to
Range: 1 to 50000 Trips in steps of 1
Range: On, Off
TRIP COUNTER ALARM LEVEL
A4 MAINTENANCE TRIP COUNTERS
BREAKER FAILURE
Range: Off, Latched, Unlatched
Range: Any combination of Relays 2 to
Range: 0.05 to 20.00 × CT in steps of
Range: 10 to 1000 ms in steps of 10
Range: On, Off
489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
5
is
actual values page.
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