Reactive Power - GE 469 Instruction Manual

469
Motor Management Relay

Reactive Power

REACTIVE
POWER
5–70
PATH: SETPOINTS S10 POWER ELEMENTS
[ ] BLOCK kvar ELEMENT
FROM START: 1 s
REACTIVE POWER
MESSAGE
ALARM: Off
ASSIGN ALARM RELAYS:
MESSAGE
Alarm
POSITIVE kvar ALARM
MESSAGE
LEVEL: 10 kvar
NEGATIVE kvar ALARM
MESSAGE
LEVEL: 10 kvar
REACTIVE POWER ALARM
MESSAGE
DELAY: 1.0 s
REACTIVE POWER ALARM
MESSAGE
EVENTS: Off
REACTIVE POWER
MESSAGE
TRIP: Off
ASSIGN TRIP RELAYS:
MESSAGE
Trip
POSITIVE kvar TRIP
MESSAGE
LEVEL: 25 kvar
NEGATIVE kvar TRIP
MESSAGE
LEVEL: 25 kvar
REACTIVE POWER TRIP
MESSAGE
DELAY: 1.0 s
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.
http://www.GEindustrial.com/multilin
S10 Power Elements
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
GE Multilin