GE 750 User Manual

GE Power Management 750/760 Feeder Management Relay 12-
43
12 S5 PROTECTION 12.6 NEGATIVE SEQUENCE
12
12.6.3 NEGATIVE SEQUENCE INSTANTANEOUS OVERCURRENT
A instantaneous overcurrent element operating on the negative sequence component of current, ANSI device
46 is programmed in this subgroup.
■ NEG SEQ INST OC
■ [ENTER] for more
The Negative Sequence Instantaneous Overcurrent setpoints path is:
\ SETPOINTS \ S5 PROTECTION \ NEGATIVE SEQUENCE \ NEG SEQ INST OC
NEG SEQ INST OC
FUNCTION: Disabled
Range: Disabled, Trip, Trip & AR, Alarm, Latched Alarm, Control
Select the required function.
NEG SEQ INST OC
RELAYS (3-7): -----
Range: Any Combination of the 3-7 AUXILIARY Relays
Select the output relays required.
NEG SEQ INST OC
PICKUP: 1.00 x CT
Range: 0.05 to 20.00 in steps of 0.01 x CT
Select the current level in terms of the CT rating. For example, if 100:5 phase
CTs are installed, enter
1.00 x CT for a negative sequence instantaneous over-
current trip of 100 A.
NEG SEQ INST OC
DELAY: 0.00 s
Range: 0.00 to 600.00 in steps of 0.01 s
Select the delay required.
NEG SEQ INST OC
DIRECTION: Disabled
Range: Disabled, Forward, Reverse
Select the direction(s) of current flow for which operation is permitted.

GE 750 Specifications

General

Brand	GE
Model	750
Category	Relays
Language	English