A1 Status; Generator Status; Last Trip Data - GE 489 Instruction Manual

5.2 A1 STATUS

5.2 A1 STATUS
T

GENERATOR STATUS

T
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These messages describe the status of the generator at any given point in time. If the generator has been tripped, is still
offline, and the 489 has not yet been reset, the
value reflects an integrated value of both the stator and rotor thermal capacity used. The values for
USED
will appear whenever the 489 thermal model picks up on the overload curve.
TIME ON OVERLOAD
T

LAST TRIP DATA

T
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5
5-2
ð
GENERATOR STATUS:
ENTER
Offline
ESCAPE
GENERATOR THERMAL
ESCAPE
CAPACITY USED: 0%
MESSAGE
ESTIMATED TRIP TIME
ESCAPE
ON OVERLOAD: Never
MESSAGE
GENERATOR STATUS
ð
CAUSE OF LAST TRIP:
ENTER
No Trip to Date
ESCAPE
TIME OF LAST TRIP:
ESCAPE
09:00:00.00
MESSAGE
DATE OF LAST TRIP:
ESCAPE
Jan 01 1995
MESSAGE
TACHOMETER
ESCAPE
PRETRIP: 3600 RPM
MESSAGE
A: 0 B:
ESCAPE
C: 0 A PreTrip
MESSAGE
a: 0 b:
ESCAPE
c: 0 DA PreTrip
MESSAGE
NEG. SEQ. CURRENT
ESCAPE
PRETRIP: 0% FLA
MESSAGE
GROUND CURRENT
ESCAPE
PRETRIP: 0.00 A
MESSAGE
GROUND CURRENT
ESCAPE
PRETRIP: 0.00 Amps
MESSAGE
Vab: 0 Vbc:
ESCAPE
Vca: 0 V PreTrip
MESSAGE
FREQUENCY
ESCAPE
PRETRIP: 0.00 Hz
MESSAGE
NEUTRAL VOLT (FUND)
ESCAPE
PRETRIP: 0.0 V
MESSAGE
NEUTRAL VOLT (3rd)
ESCAPE
PRETRIP: 0.0 V
MESSAGE
489 Generator Management Relay
5.2.1 GENERATOR STATUS
Range: Online, Offline, Tripped
Range: 0 to 100%
Seen only if the Thermal Model is enabled
Range: 0 to 10000 sec., Never
Seen only if the Thermal Model is enabled
will be "Tripped". The
GENERATOR THERMAL CAPACITY
Range: No Trip to Date, General Input A to G, Sequential
Trip, Field-Bkr Discrep., Tachometer, Thermal
Model, Offline Overcurrent, Phase Overcurrent,
Neg. Seq. Overcurrent, Ground Overcurrent,
Phase Differential, RTDs 1 to 12, Overvoltage,
Undervoltage, Volts/Hertz,
Underfrequency, Overfrequency, Neutral O/V,
Neutral U/V (3rd), Reactive Power, Reverse
Power, Low Forward Power, Inadvertent Energ.,
Analog Inputs 1 to 4
Range: hour:min:sec
Range: Month Day Year
Range: 0 to 3600 RPM
Seen only if Tachometer is assigned as an input.
Range: 0 to 999999 A. Represents current measured
0
from output CTs. Seen only if a trip has occurred.
Range: 0 to 999999 A. Represents differential current.
0
Seen only if differential element is enabled.
Range: 0 to 2000% FLA
Seen only if there has been a trip.
Range: 0.00 to 200000.00 A
Not seen if GROUND CT is "None"
Range: 0.0 to 5000.0 A
Range: 0 to 50000 V
0
Not seen if VT CONNECTION is "None"
Range: 0.00 to 90.00 Hz
Not seen if VT CONNECTION is "None"
Range: 0.0 to 25000.0 V
Seen only if there is a neutral voltage transformer.
Range: 0.0 to 25000.0 V
Seen only if there is a neutral voltage transformer.
5 ACTUAL VALUES
ESTIMATED TRIP
5.2.2 LAST TRIP DATA
Phase Reversal,
GE Power Management