GE 489 Instruction Manual page 137
Generator management relay
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Also See for 489:
- Instruction manual (314 pages) ,
- Communications manual (78 pages) ,
- Instruction manual (38 pages)
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5 ACTUAL VALUES
GE Multilin
Input D ALARM
ESCAPE
STATUS: Active
MESSAGE
Input E ALARM
ESCAPE
STATUS: Active
MESSAGE
Input F ALARM
ESCAPE
STATUS: Active
MESSAGE
Input G ALARM
ESCAPE
STATUS: Active
MESSAGE
TACHOMETER
ESCAPE
ALARM: 3000 RPM
MESSAGE
OVERCURRENT
ESCAPE
ALARM: 10.00 x FLA
MESSAGE
NEG. SEQ. CURRENT
ESCAPE
ALARM: 15% FLA
MESSAGE
GROUND OVERCURRENT
ESCAPE
ALARM: 5.00 A
MESSAGE
GROUND DIRECTIONAL
ESCAPE
ALARM: 5.00 A
MESSAGE
UNDERVOLTAGE ALARM
ESCAPE
Vab= 3245 V
78% Rated
MESSAGE
OVERVOLTAGE ALARM
ESCAPE
Vab= 4992 V
120% Rated
MESSAGE
VOLTS/HERTZ ALARM
ESCAPE
PER UNIT V/Hz: 1.15
MESSAGE
UNDERFREQUENCY
ESCAPE
ALARM: 59.4 Hz
MESSAGE
OVERFREQUENCY
ESCAPE
ALARM: 60.6 Hz
MESSAGE
NEUTRAL O/V (FUND)
ESCAPE
ALARM: 0.0 V
MESSAGE
NEUTRAL U/V (3rd)
ESCAPE
ALARM: 0.0 V
MESSAGE
REACTIVE POWER Mvar
ESCAPE
ALARM: +20.000
MESSAGE
REVERSE POWER
ESCAPE
ALARM: –20.000 MW
MESSAGE
LOW FORWARD POWER
ESCAPE
ALARM: –20.000 MW
MESSAGE
STATOR RTD #1
ESCAPE
ALARM: 135°C
MESSAGE
OPEN SENSOR ALARM:
ESCAPE
RTD # 1 2 3 4 5 6 ...
MESSAGE
SHORT/LOW TEMP ALARM
ESCAPE
RTD # 7 8 9 10 11 ...
MESSAGE
489 Generator Management Relay
5.2 A1 STATUS
Range: see Input A ALARM STATUS
Range: see Input A ALARM STATUS
Range: see Input A ALARM STATUS
Range: see Input A ALARM STATUS
Range: 0 to 3600 RPM. The current Tachometer
Digital Input value is shown here
Range: 0.00 to 20.00 × FLA
The overcurrent level is shown here.
Range: 0 to 100% FLA. Reflects the present negative-
sequence current level.
Range: 0.00 to 200000.00 A. Seen only if the GE HGF
CT is used. Reflects the present ground
current level.
Range: 0.00 to 200000.00 A
Range: 0 to 20000 V; 50 to 99% of Rated. The lowest
phase-to-phase voltage value is shown here
Range: 0 to 20000 V; 101 to 150% of Rated. The
lowest phase-to-phase voltage is shown here
Range: 0.00 to 2.00. The present V/Hz value is shown
here. Not seen if VT CONNECTION is None.
Range: 0.00 to 90.00 Hz
Reflects the present voltage frequency value.
Range: 0.00 to 90.00 Hz
Reflects the present voltage frequency value.
Range: 0.0 to 25000.0 V. The present fundamental
neutral voltage value is displayed here.
Range: 0.0 to 25000.0 V. The present 3rd harmonic
neutral voltage value is displayed here.
Range: –2000.000 to +2000.000 Mvar
The current Mvar value is shown here
Range: –2000.000 to +2000.000 MW
The current MW value is shown here
Range: –2000.000 to +2000.000 MW
The current MW value is shown here
Range: –50 to +250°C. The present RTD temperature
is shown. Reflects programmed RTD Name.
Range: RTDs 1 to 12. Reflects the RTD(s) that caused
the open sensor alarm.
Range: RTDs 1 to 12. Reflects the RTD(s) that caused
the short/low temp. alarm.
5
5-5
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