Reactive Power - GE 469 Manual

4.11 S10 POWER ELEMENTS
S REACTIVE POWER
S [ENTER] for more
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 posi-
tive or negative level, for the specified delay, a trip or alarm will occur indicating a positive or negative kvar con-
dition. The reactive power alarm can be used to detect loss of excitation and out of step.
4-68
ð
BLOCK kvar ELEMENT
ENTER
FROM START: 1 s
ESCAPE

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
LEVEL: Off
MESSAGE
NEGATIVE kvar TRIP
ESCAPE
LEVEL: Off
MESSAGE
REACTIVE POWER TRIP
ESCAPE
DELAY: 1.0 s
MESSAGE
469 Motor Management Relay
4 SETPOINT PROGRAMMING
4.11.3 REACTIVE POWER
Range: 0 to 5000 sec., step 1
Range: Off, Latched, Unlatched
Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3,
Alarm & Auxiliary3, Auxiliary2, Aux2 & Aux3, Auxiliary3
Range: 1 to 25000 kvar, step 1
Range: 1 to 25000 kvar, step 1
Range: 0.2 to 30.0 sec., step: 0.1
Range: On, Off
Range: Off, Latched, Unlatched
Range: Trip, Trip & Auxiliary2, Trip & Aux2 & Aux3,
Trip & Auxiliary3
Range: 1 to 25000 kvar, step 1
Range: 1 to 25000 kvar, step 1
Range: 0.2 to 30.0 sec., step: 0.1
GE Power Management