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469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
5.11.3 Reactive Power
PATH: SETTINGS
S10 POWER ELEMENTS
REACTIVE POWER
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.
REACTIVE
[
]
POWER
BLOCK kvar ELEMENT
FROM START: 1 s
Range: 0 to 5000 s in steps of 1
MESSAGE
REACTIVE POWER
ALARM: Off
Range: Off, Latched, Unlatched
MESSAGE
ASSIGN ALARM RELAYS:
Alarm
Range: Alarm, Alarm & Auxiliary2,
Alarm & Aux2 & Aux3, Alarm &
Auxiliary3, Auxiliary2, Aux2 &
Aux3, Auxiliary3, None
MESSAGE
POSITIVE kvar ALARM
LEVEL: 10 kvar
Range: 1 to 25000 kvar in steps of 1
MESSAGE
NEGATIVE kvar ALARM
LEVEL: 10 kvar
Range: 1 to 25000 kvar in steps of 1
MESSAGE
REACTIVE POWER ALARM
DELAY: 1.0 s
Range: 0.2 to 30.0 s in steps of 0.1
MESSAGE
REACTIVE POWER ALARM
EVENTS: Off
Range: On, Off
MESSAGE
REACTIVE POWER
TRIP: Off
Range: Off, Latched, Unlatched
MESSAGE
ASSIGN TRIP RELAYS:
Trip
Range: Trip, Trip & Auxiliary2, Trip &
Aux2 & Aux3, Trip & Auxiliary3
MESSAGE
POSITIVE kvar TRIP
LEVEL: 25 kvar
Range: 1 to 25000 kvar in steps of 1
MESSAGE
NEGATIVE kvar TRIP
LEVEL: 25 kvar
Range: 1 to 25000 kvar in steps of 1
MESSAGE
REACTIVE POWER TRIP
DELAY: 1.0 s
Range: 0.2 to 30.0 s in steps of 0.1
Содержание Masoneilan 469 Series
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