GE 489

4-74 489 Generator Management Relay
GE Power Management
4.13 489 TESTING 4 SETPOINT PROGRAMMING
4
4.13.2 PRE-FAULT SETUP
The values entered under Pre-Fault Values will be substituted for the measured values in the 489 when the
SIMULATION
MODE
is "Simulate Pre-Fault".
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PRE-FAULT SETUP
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PRE-FAULT Iphase
OUTPUT: 0.00 x CT
Range: 0.00 to 20.00
×
CT in steps of 0.01
PRE-FAULT VOLTAGES
PHASE-N: 1.00 x Rated
Range: 0.00 to 1.50
×
Rated in steps of 0.01
Entered as a phase-to-neutral quantity.
PRE-FAULT CURRENT
LAGS VOLTAGE: 0°
Range: 0 to 359° in steps of 1
PRE-FAULT Iphase
NEUTRAL: 0.00 x CT
Range: 0.00 to 20.00
×
CT in steps of 0.01
180° phase shift with respect to Iphase OUTPUT
PRE-FAULT CURRENT
GROUND: 0.00 x CT
Range: 0.00 to 20.00
×
CT in steps of 0.01
CT is either XXX:1 or 50:0.025
PRE-FAULT VOLTAGE
NEUTRAL: 0 Vsec
Range 0.0 to 100.0 Vsec in steps of 0.1
Fundamental value only in secondary units
PRE-FAULT STATOR
RTD TEMP: 40°C
Range: –50 to 250°C in steps of 1
PRE-FAULT BEARING
RTD TEMP: 40°C
Range: –50 to 250°C in steps of 1
PRE-FAULT OTHER
RTD TEMP: 40°C
Range: –50 to 250°C in steps of 1
PRE-FAULT AMBIENT
RTD TEMP: 40°C
Range: –50 to 250°C in steps of 1
PRE-FAULT SYSTEM
FREQUENCY: 60.0 Hz
Range: 5.0 to 90.0 Hz in steps of 0.1
PRE-FAULT ANALOG
INPUT 1: 0%
Range: 0 to 100% in steps of 1
PRE-FAULT ANALOG
INPUT 2: 0%
Range: 0 to 100% in steps of 1
PRE-FAULT ANALOG
INPUT 3: 0%
Range: 0 to 100% in steps of 1
PRE-FAULT ANALOG
INPUT 4: 0%
Range: 0 to 100% in steps of 1
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