I tried to run my AC for the first time the other day off my portable 2200W generator and the panel breaker tripped. Now I'm run the generator on the other on the other bus and the bus breaker doesn't trip even though the reverse polarity light does come on (think this is normal for using an inverter generator). On the attached diagram
Bus B supplies the Air Conditioning and I had the generator connected to the Shore Power Outlet 2
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 so it isn't any start current etc). 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.
I took out the trip breaker to look for a replacement and it is a rare expense thing for the same breaker. I did find a replacement, but is says it will trip on reverse polarity so now I'm confused as maybe is is suppose to trip on reverse polarity, in which an inverter generator can not be used.
Any other thoughts?
Bus B supplies the Air Conditioning and I had the generator connected to the Shore Power Outlet 2
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 so it isn't any start current etc). 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.
I took out the trip breaker to look for a replacement and it is a rare expense thing for the same breaker. I did find a replacement, but is says it will trip on reverse polarity so now I'm confused as maybe is is suppose to trip on reverse polarity, in which an inverter generator can not be used.
Any other thoughts?
