GE 489 - Manual (Page 235)

GE Multilin 489 Generator Management Relay A-7
APPENDIX A A.2 CURRENT TRANSFORMERS
A
A.2.2 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).
808709A1.CDR
GCT5
GCT16
DIMENSIONS
DIMENSIONS