I tried to run my AC for the first time the other day off my portable 2200W generator
and the panel breaker tripped. On the attached diagram
Bus B supplies the Air Conditioning
and I had the generator
connected to the Shore Power
On the load breakers:
The 25A breaker is for the forward AC
The next 15A is for the Aft AC
The next 10A is for the seawater pump
With the air conditioner off, the generator running, I had power to Bus B. I shut the Bus B breaker (trip pack) and the 10A relay breaker and everything was fine. But if I shut the breaker for either the forward or aft air conditioner the Bus B trip breaker would trip (the air conditioners were off). I never saw any amps display on the Bus B amp meter.
I have never run the air conditioners the past 5 years.
The generator runs things on Bus A if plugged into that bus just fine.
I'm thinking the problem is the Bus B breaker. I don't understand why it doesn't trip with the Relay breaker shut, but maybe that doesn't even power up till the air conditioner signals it.
Any other thoughts? What is a "Trippack Breaker" anyway?