S10 Monitoring - GE 489 Instruction Manual

4 SETPOINT PROGRAMMING

4.11 S10 MONITORING

T
TRIP COUNTER
T
[ENTER] for more
When enabled, a trip counter alarm will occur when the
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
actual values page. If a trend is detected, it would warrant further investigation.
T
BREAKER FAILURE
T
[ENTER] for more
If the breaker failure alarm feature may be enabled as latched or unlatched. If the R1 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.
T
TRIP COIL MONITOR
T
[ENTER] for more
If the trip coil monitor alarm feature is enabled as latched or unlatched, the trip coil supervision circuitry will monitor the trip
coil circuit for continuity any time that the breaker status input indicates that the breaker is closed. If that continuity is bro-
ken, a trip coil monitor alarm will occur in approximately 300 ms.
GE Power Management
ð
TRIP COUNTER
ENTER
ALARM: Off
ESCAPE
ASSIGN ALARM
ESCAPE
RELAYS (2-5): ---5
MESSAGE
TRIP COUNTER ALARM
ESCAPE
LEVEL: 25 Trips
MESSAGE
TRIP COUNTER ALARM
ESCAPE
EVENTS: Off
MESSAGE
TRIP COUNTER ALARM LEVEL
ð
BREAKER FAILURE
ENTER
ALARM: Off
ESCAPE
ASSIGN ALARM
ESCAPE
RELAYS (2-5): ---5
MESSAGE
BREAKER FAILURE
ESCAPE
LEVEL: 1.00 x CT
MESSAGE
BREAKER FAILURE
ESCAPE
DELAY: 100 ms
MESSAGE
BREAKER FAILURE
ESCAPE
ALARM EVENTS: Off
MESSAGE
ð
TRIP COIL MONITOR
ENTER
ALARM: Off
ESCAPE
ASSIGN ALARM
ESCAPE
RELAYS (2-5): ---5
MESSAGE
SUPERVISION OF TRIP
ESCAPE
COIL: 52 Closed
MESSAGE
TRIP COIL MONITOR
ESCAPE
ALARM EVENTS: Off
MESSAGE
489 Generator Management Relay
4.11 S10 MONITORING
4.11.1 TRIP COUNTER
Range: Off, Latched, Unlatched
Range: Any combination of Relays 2 to 5
Range: 1 to 50000 Trips in steps of 1
Range: On, Off
is reached. The trip counter must be
A4 MAINTENANCE \ TRIP COUNTERS
4.11.2 BREAKER FAILURE
Range: Off, Latched, Unlatched
Range: Any combination of Relays 2 to 5
Range: 0.05 to 20.00 × CT in steps of 0.01
Range: 10 to 1000 ms in steps of 10
Range: On, Off
4.11.3 TRIP COIL MONITOR
Range: Off, Latched, Unlatched
Range: Any combination of Relays 2 to 5
Range: 52 Closed, 52 Open/Closed
Range: On, Off
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