GE 469 User Manual

CHAPTER 5: SETTINGS
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 5–79
The 469 can detect the phase rotation of the three phase voltage. If the Phase Reversal
feature is turned on when all 3 phase voltages are greater than 50% motor nameplate
voltage, and the phase rotation of the three phase voltages is not the same as the settings,
a trip and block start will occur in 500 to 700 ms.
Note
This feature does not work when single VT operation is enabled.
5.10.4 Frequency
PATH: SETTINGS ZV S9 VOLTAGE ELEM. ZV FREQUENCY
Once the frequency of the phase AN or AB voltage (depending on wye or delta connection)
is out of range of the overfrequency and underfrequency settings, a trip or alarm will
occur.
This feature may be useful for load shedding applications on large motors. It could also be
used to load shed an entire feeder if the trip was assigned to an upstream breaker.

FREQUENCY [
FREQUENCY
ALARM: Off
Range: Off, Latched, Unlatched
MESSAGE
ASSIGN ALARM
RELAYS:
Range: Alarm, Alarm & Auxiliary2,
Alarm & Aux2 & Aux3, Alarm &
Auxiliary3, Auxiliary2, Aux2 &
Aux3, Auxiliary3
MESSAGE
OVER FREQUENCY
ALARM LEVEL:
Range: 25.01 to 70.00 Hz in steps of
0.01
MESSAGE
UNDER FREQUENCY
ALARM LEVEL:
Range: 20.00 to 60.00 Hz in steps of
0.01
MESSAGE
FREQUENCY
ALARM DELAY: 1.0
Range: 0.0 to 60.0 s in steps of 0.1
MESSAGE
FREQUENCY
ALARM EVENTS: Off
Range: On, Off
MESSAGE
FREQUENCY
TRIP: Off
Range: Off, Latched, Unlatched
MESSAGE
ASSIGN TRIP
RELAYS:
Range: Trip, Trip & Auxiliary2, Trip &
Aux2 & Aux3, Trip & Auxiliary3
MESSAGE
OVER FREQUENCY
TRIP LEVEL: 60.50
Range: 25.01 to 70.00 Hz in steps of
0.01
MESSAGE
UNDER FREQUENCY
TRIP LEVEL: 59.50
Range: 20.00 to 60.00 Hz in steps of
0.01
MESSAGE
FREQUENCY
TRIP DELAY: 1.0 s
Range: 0.0 to 60.0 s in steps of 0.1

GE 469 Specifications

General

Brand	GE
Model	469
Category	Relays
Language	English