Voltage - GE 750 Instruction Manual

S5 Protection
NEG SEQUENCE

VOLTAGE

GE Multilin
FIGURE 5–25: Negative Sequence Directional Logic
e) Negative Sequence Voltage
PATH: SETPOINTS S5 PROTECTION
[ ] NEG SEQ VOLTAGE
FUNCTION: Disabled
NEG SEQ VOLTAGE
MESSAGE
RELAYS (3-7): -----
NEG SEQ VOLTAGE
MESSAGE
PICKUP: 0.10 x VT
NEG SEQ VOLTAGE
MESSAGE
DELAY: 2.0 s
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.
http://www.GEmultilin.com
Feeder Management Relay
NEGATIVE SEQUENCE NEG SEQUENCE 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
750/760
5–63