GE Feeder Management Relay 750 Instruction Manual page 126

5.6 S5 PROTECTION
e) NEGATIVE SEQUENCE VOLTAGE
PATH: SETPOINTS S5 PROTECTION
NEG SEQ VOLTAGE
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To protect against loss of one or two source phases, or against a reversed phase sequence of voltage, the negative
sequence voltage element can be used to either cause a trip or generate an alarm when the negative sequence voltage
exceeds the specified threshold for a specified time delay.
5
5-62
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NEGATIVE SEQUENCE
ð
NEG SEQ VOLTAGE
ENTER
ESCAPE
FUNCTION: Disabled
NEG SEQ VOLTAGE
ESCAPE
MESSAGE RELAYS (3-7): -----
NEG SEQ VOLTAGE
ESCAPE
MESSAGE PICKUP: 0.10 x VT
NEG SEQ VOLTAGE
ESCAPE
MESSAGE DELAY: 2.0 s
Figure 5–26: NEGATIVE SEQUENCE VOLTAGE LOGIC
750/760 Feeder Management Relay
NEG SEQ VOLTAGE
Range: Disabled, Trip, Alarm, Latched Alarm, Control
Range: Any combination of 3 to 7 Auxiliary relays
Range: 0.00 to 1.25 x VT in steps of 0.01
Range: 0.0 to 6000.0 s in steps of 0.1
5 SETPOINTS
GE Multilin