I have 3 CVHF Chillers. I'm having intermitten Main Breaker Trips. Motor Megs fine, Contacts great. It does have a tracer connected to siemens apogee.
Chiller runs great. It could be at 60% and trip or 80%. It's only on one chiller. Monitered voltage for several weeks looks ok. has anyone heard of oil heater tripping a main? Any ideas. Pondered change out the Breaker too much $$ to throw a try.