GE 489 - Manual (Page 234)

A-6 489 Generator Management Relay GE Multilin
A.2 CURRENT TRANSFORMERS APPENDIX A
A
A.2 Current Transformers A.2.1 GROUND FAULT CTS FOR 50:0.025 A CT
CTs that are specially designed to match the ground fault input of GE Multilin motor protection relays should be used to
ensure correct performance. These CTs have a 50:0.025A (2000:1 ratio) and can sense low leakage currents over the relay
setting range with minimum error. Three sizes are available with 3½", 5½", or 8" diameter windows.
808710A1.CDR
HGF3 / HGF5
DIMENSIONS
HGF8
DIMENSIONS