Ge 489 User Manual Page 61

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GE Multilin 489 Generator Management Relay 4-11
4 SETPOINTS 4.2 S1 489 SETUP
4
4.2.7 CLEAR DATA
PATH: SETPOINTS Ö S1 489 SETUP ÖØ CLEAR DATA
These commands may be used to clear various historical data.
CLEAR LAST TRIP DATA: The Last Trip Data may be cleared by executing this command.
CLEAR MWh and Mvarh METERS: Executing this command will clear the MWh and Mvarh metering to zero.
CLEAR PEAK DEMAND DATA: Execute this command to clear peak demand values.
CLEAR RTD MAXIMUMS: All maximum RTD temperature measurements are stored and updated each time a new
maximum temperature is established. Execute this command to clear the maximum values.
CLEAR ANALOG I/P MIN/MAX: The minimum and maximum analog input values are stored for each Analog Input.
Those minimum and maximum values may be cleared at any time.
CLEAR TRIP COUNTERS: There are counters for each possible type of trip. Those counters may be cleared by exe-
cuting this command.
CLEAR EVENT RECORD: The event recorder saves the last 40 events, automatically overwriting the oldest event. If
desired, all events can be cleared using this command to prevent confusion with old information.
CLEAR GENERATOR INFORMATION: The number of thermal resets and the total generator running hours can be
viewed in actual values. On a new installation, or if new equipment is installed, this information is cleared through this
setpoint.
CLEAR BREAKER INFORMATION: The total number of breaker operations can be viewed in actual values. On a new
installation or if maintenance work is done on the breaker, this accumulator can be cleared with this setpoint.
CLEAR DATA
[ENTER] for more
CLEAR LAST TRIP
DATA: No
Range: No, Yes
RESET MWh and Mvarh
METERS: No
Range: No, Yes
CLEAR PEAK DEMAND
DATA: No
Range: No, Yes
CLEAR RTD
MAXIMUMS: No
Range: No, Yes
CLEAR ANALOG I/P
MIN/MAX: No
Range: No, Yes
CLEAR TRIP
COUNTERS: No
Range: No, Yes
CLEAR EVENT
RECORD: No
Range: No, Yes
CLEAR GENERATOR
INFORMATION: No
Range: No, Yes
CLEAR BREAKER
INFORMATION: No
Range: No, Yes
ENTER
ESCAPE
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