Reactive Power - GE 469 Instruction Manual

4.11 S10 POWER ELEMENTS
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PATH: SETPOINTS S10 POWER ELEMENTS
n REACTIVE POWER
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4
If the 469 is applied on a synchronous motor, it is desirable not to trip or alarm on kvar until the field has been applied.
Therefore, this feature can be blocked until the motor comes up to speed and the field is applied. From that point forward,
the kvar trip and alarm elements will be active. Once the kvar level exceeds either the positive or negative level, for the
specified delay, a trip or alarm will occur indicating a positive or negative kvar condition. The reactive power alarm can be
used to detect loss of excitation and out of step.
4-62
Courtesy of NationalSwitchgear.com
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REACTIVE POWER

ð
BLOCK kvar ELEMENT
ENTER
ESCAPE FROM START: 1 s
REACTIVE POWER
ESCAPE
ALARM: Off
MESSAGE
ASSIGN ALARM RELAYS:
ESCAPE
Alarm
MESSAGE
POSITIVE kvar ALARM
ESCAPE
LEVEL: 10 kvar
MESSAGE
NEGATIVE kvar ALARM
ESCAPE
LEVEL: 10 kvar
MESSAGE
REACTIVE POWER ALARM
ESCAPE
DELAY: 1.0 s
MESSAGE
REACTIVE POWER ALARM
ESCAPE
EVENTS: Off
MESSAGE
REACTIVE POWER
ESCAPE
TRIP: Off
MESSAGE
ASSIGN TRIP RELAYS:
ESCAPE
Trip
MESSAGE
POSITIVE kvar TRIP
ESCAPE
MESSAGE LEVEL: 25 kvar
NEGATIVE kvar TRIP
ESCAPE
LEVEL: 25 kvar
MESSAGE
REACTIVE POWER TRIP
ESCAPE
DELAY: 1.0 s
MESSAGE
469 Motor Management Relay
4.11.3 REACTIVE POWER
Range: 0 to 5000 s in steps of 1
Range: Off, Latched, Unlatched
Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3,
Alarm & Auxiliary3, Auxiliary2, Aux2 & Aux3,
Auxiliary3
Range: 1 to 25000 kvar in steps of 1
Range: 1 to 25000 kvar in steps of 1
Range: 0.2 to 30.0 s in steps of 0.1
Range: On, Off
Range: Off, Latched, Unlatched
Range: Trip, Trip & Auxiliary2, Trip & Aux2 & Aux3,
Trip & Auxiliary3
Range: 1 to 25000 kvar in steps of 1
Range: 1 to 25000 kvar in steps of 1
Range: 0.2 to 30.0 s in steps of 0.1
4 SETPOINTS
GE Multilin