I was finishing up a portable generator set up this afternoon. The problem I was having was a couple of the circuits I had were on arc faults and would trip when switching from line to gen on the transfer switch. It is a Siemens main lug panel and I am using a Reliance 10 circuit manual transfer switch. These two circuits are on opposite phases in both the panel and the transfer switch. I don't know whether it is the generator having the neutral bonded to the frame (I guess) and the panel being a sub panel fed from a meter main with the ground and neutral seperate in the panel or something to do with the arc fault having a GFCI component not having the neutral current match the hot current now not flowing through the breaker. I did the testing without turning off the meter main breaker. I ran out of time and will return next week.
