General Counters; Timers - GE 489 Instruction Manual

5.5 A4 MAINTENANCE
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GENERAL COUNTERS

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One of the 489 general counters will count the number of breaker operations over time. This may be useful information for
breaker maintenance. The number of breaker operations is incremented whenever the breaker status changes from closed
to open and all phase currents are zero. Another counter counts the number of thermal resets if one of the assignable digi-
tal inputs is assigned to thermal reset. This may be useful information when troubleshooting. When either of these counters
reaches 50000, that counter will reset to 0. Each counter can also be cleared using the
CLEAR BREAKER INFORMATION
Test Input is shorted.
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TIMERS

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5
The 489 accumulates the total online time for the generator. This may be useful for scheduling routine maintenance. When
this timer reaches 1000000, it resets to 0. This timer can be cleared using the
GENERATOR INFORMATION
shorted.
5-22
A4 MAINTENANCE GENERAL COUNTERS
ð
NUMBER OF BREAKER
ENTER
ð
ESCAPE OPERATIONS: 0
NUMBER OF THERMAL
ESCAPE
RESETS: 0
MESSAGE
setpoint. The number of breaker operations will not update if a digital input programmed as
A4 MAINTENANCE TIMERS
ð
GENERATOR HOURS
ENTER
ð
ONLINE:
ESCAPE
setpoint. The generator hours online will not update if a digital input programmed as Test Input is
489 Generator Management Relay
5.5.2 GENERAL COUNTERS
Range: 0 to 50000
Range: 0 to 50000. Seen only if a digital input is
assigned to Thermal Reset.
S1 489 SETUP
Range: 1 to 1000000 hrs.
0 h
S1 489 SETUP
5 ACTUAL VALUES
CLEAR DATA
5.5.3 TIMERS
CLEAR DATA CLEAR
GE Multilin