GE Multilin 489

CHAPTER 6: ACTUAL VALUES
489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL 6–7
MESSAGE
Input F ALARM
STATUS: Active
Range: Active, Latched. See Note
below.
MESSAGE
Input G ALARM
STATUS: Active
Range: Active, Latched. See Note
below.
MESSAGE
TACHOMETER
ALARM: 3000 RPM
Range: 0 to 3600 RPM
MESSAGE
OVERCURRENT
ALARM: 10.00 x FLA
Range: 0.00 to 20.00 × FLA
MESSAGE
NEG. SEQ. CURRENT
ALARM: 15% FLA
Range: 0 to 100% FLA
MESSAGE
GROUND OVERCURRENT
ALARM: 5.00 A
Range: 0.00 to 200000.00 A. Seen only
if the GE 50:0.025 CT is used.
MESSAGE
GROUND DIRECTIONAL
ALARM: 5.00 A
Range: 0.00 to 200000.00 A
MESSAGE
UNDERVOLTAGE ALARM
Vab= 3245 V 78%
Range: 0 to 20000 V; 50 to 99% of
Rated
MESSAGE
OVERVOLTAGE ALARM
Vab= 4992 V 120%
Range: 0 to 20000 V; 101 to 150% of
Rated
MESSAGE
VOLTS/HERTZ ALARM
PER UNIT V/Hz: 1.15
Range: 0.00 to 2.00. Not seen if VT
CONNECTION
is None.
MESSAGE
UNDERFREQUENCY
ALARM: 59.4 Hz
Range: 0.00 to 90.00 Hz
MESSAGE
OVERFREQUENCY
ALARM: 60.6 Hz
Range: 0.00 to 90.00 Hz
MESSAGE
NEUTRAL O/V (FUND)
ALARM: 0.0 V
Range: 0.0 to 25000.0 V
MESSAGE
NEUTRAL U/V (3rd)
ALARM: 0.0 V
Range: 0.0 to 25000.0 V
MESSAGE
REACTIVE POWER Mvar
ALARM: +20.000
Range: –2000.000 to +2000.000 Mvar
MESSAGE
REVERSE POWER
ALARM: –20.000 MW
Range: –2000.000 to +2000.000 MW
MESSAGE
LOW FORWARD POWER
ALARM: –20.000 MW
Range: –2000.000 to +2000.000 MW
MESSAGE
RTD #1
ALARM: 135°C
Range: –50 to +250°C. Top line displays
the RTD name as programmed.
MESSAGE
RTD #2
ALARM: 135°C
Range: –50 to +250°C. Top line displays
the RTD name as programmed.
MESSAGE
RTD #3
ALARM: 135°C
Range: –50 to +250°C. Top line displays
the RTD name as programmed.
MESSAGE
RTD #4
ALARM: 135°C
Range: –50 to +250°C. Top line displays
the RTD name as programmed.
Courtesy of NationalSwitchgear.com