GE 489 User Manual

D-2 489 Generator Management Relay
GE Power Management
D.1 CURRENT TRANSFORMERS APPENDIX D
D
D.1.2 GROUND FAULT CTs FOR 5 A SECONDARY CT
For low resistance or solidly grounded systems, a 5 A secondary CT should be used. Two sizes are available with 5½” or
13” × 16” windows. Various Primary amp CTs can be chosen (50 to 250).
GCT5
GCT16
DIMENSIONS
DIMENSIONS

GE 489 Specifications

General

Brand	GE
Model	489
Category	Relays
Language	English