Strange EMS/autoformer interaction?
Sorry for the length of this but details help:
This is not a first outing with these items.
Connected as follows: 30amp Post,-PowerMaster autoformer,- PI EMS-30,-trailer.
Post had 50amp/30amp/20amp breakers. 30amp checked out fine with hand held checker and open ground detector. EMS ran check and turned on without problem.
Plugged extension cord into 20amp outlet and turned on breaker. This caused an over current situation on the 30amp breaker and EMS shut down. Turned off 20amp breaker and EMS reset.
Later that evening, with the refrig on electric, the coffee pot, two 12 volt lights, television and satellite box on, I turned on 1 more 12 volt light. EMS shut down everything and showed an "open ground" fault. Reset EMS and it recycled and returned power without a problem.
Any ideas on what would cause this? I turned on the same 12 volt light without problem after the reset. Do I just have a sensitive unit?
Is this something you have to live with to have EMS protection?
When only using the autoformer we never experienced these problems. I may have been having problems and just didn't realize it.
You can avoid reality, but you cannot avoid the consequences of avoiding reality – Ayn Rand