GE MIFII GEK-106237P User Manual

9-22 MIFII Digital Feeder Relay GEK-106237P
9.16 GROUND TOC ELEMENT (51G) 9 RELAY COMMISSIONING
9
9.16.9 IAC EXTREMELY INVERSE CURVE
Set the relay as follows:
Apply 0.9 times the pickup current at the ground terminals and the relay should not trip.
Apply 1.5 times the pickup current and the relay should trip between 31.94 and 36.02 sec.
Apply 5 times the pickup current and the relay should trip between 2.31 and 2.60 sec.
9.16.10 IAC INVERSE LONG CURVE
Set the relay as follows:
Apply 0.9 times the pickup current at the ground terminals and the relay should not trip.
Apply 1.5 times the pickup current and the relay should trip between 122.17 and 137.77 sec.
Apply 5 times the pickup current and the relay should trip between 31.35 and 35.36 sec.
9.16.11 IAC INVERSE SHORT CURVE
Set the relay as follows:
Apply 0.9 times the pickup current at the ground terminals and the relay should not trip.
Apply 1.5 times the pickup current and the relay should trip between 1.38 and 1.56 sec.
Apply 5 times the pickup current and the relay should trip between 0.53 and 0.60 sec.
9.16.12 EPTAR C CURVE
Set the relay as follows:
Apply 0.9 times the pickup current at phase C and the relay should not trip.
Apply 2 times the pickup current and the relay should trip between 43.3 and 47.8 sec.
Apply 5 times the pickup current and the relay should trip between 23.4 and 25.9 sec.
51G SETTINGS GROUP
Curve EXTREMELY INVERSE
Time Dial 10
51G SETTINGS GROUP
Curve VERY INVERSE
Time Dial 10
51G SETTINGS GROUP
Curve EXTREMELY INVERSE
Time Dial 10
51G SETTINGS GROUP
Curve EPTAR C
Time Dial 1

GE MIFII GEK-106237P Specifications

General

Brand	GE
Model	MIFII GEK-106237P
Category	Accessories
Language	English