GE Power Management 469 Motor Management Relay 4-67
4 SETPOINT PROGRAMMING 4.11 S10 POWER ELEMENTS
4
4.11.2 POWER FACTOR
If the 469 is applied on a synchronous motor, it is desirable not to trip or alarm on power factor 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 power factor trip and alarm elements will be active. Once the power factor
is less than either the Lead or Lag level, for the specified delay, a trip or alarm will occur indicating a Lead or
Lag condition. The power factor alarm can be used to detect loss of excitation and out of step.
y
POWER FACTOR
y
[ENTER] for more
BLOCK PF ELEMENT
FROM START: 1 s
Range: 0 to 5000 sec., step: 1
POWER FACTOR
ALARM: Off
Range: Off, Latched, Unlatched
ASSIGN ALARM RELAYS:
Alarm
Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3,
Alarm & Auxiliary3, Auxiliary2, Aux2 & Aux3, Auxiliary3
POWER FACTOR LEAD
ALARM LEVEL: Off
Range: 0.05 to 0.99 step 0.01, Off
POWER FACTOR LAG
ALARM LEVEL: Off
Range: 0.05 to 0.99 step 0.01, Off
POWER FACTOR ALARM
DELAY: 1.0 s
Range: 0.2 to 30.0 sec., step: 0.1
POWER FACTOR ALARM
EVENTS: Off
Range: On, Off
POWER FACTOR
TRIP: Off
Range: Off, Latched, Unlatched
ASSIGN TRIP RELAYS:
Trip
Range: Trip, Trip & Auxiliary2, Trip & Aux2 & Aux3,
Trip & Auxiliary3
POWER FACTOR LEAD
TRIP LEVEL: Off
Range: 0.05 to 0.99 step 0.01, Off
POWER FACTOR LAG
TRIP LEVEL: Off
Range: 0.05 to 0.99 step 0.01, Off
POWER FACTOR TRIP
DELAY: 1.0 s
Range: 0.2 to 30.0 sec., step: 0.1
ENTER
ESCAPE
ð
ð
MESSAGE
ESCAPE
MESSAGE
ESCAPE
MESSAGE
ESCAPE
MESSAGE
ESCAPE
MESSAGE
ESCAPE
MESSAGE
ESCAPE
MESSAGE
ESCAPE
MESSAGE
ESCAPE
MESSAGE
ESCAPE
MESSAGE
ESCAPE
MESSAGE
ESCAPE