House GFI trips when I run MH generator
I know that GFIs can sometimes be a pain but they are a necessary pain. Here is the issue. Everything works great for days on end when I'm plugged into the garage GFI for pre/post trip like running th...
Forum Discussion
I suspect what may be happening is that when the transfer switch goes between house and generator, there is a moment when the house GFI sees a ground neutral short in the trailer. Which will trip a GFI.
Why is this happening?? Well, by code the trailer ground and neutral are isolated, just like all the outlets in your house.
However, when under generator power, the transfer switch connects the trailer ground and neutral together, just like the main breaker panel in your house.
So when the transfer occurs, there is a moment when the house sees ground and neutral shorted before it disconnects the house hot and neutral feeds. Bingo, house GFI trips.
However, normally the generator is second in line behind the shore power so the generator shouldn't switch on or trigger the transfer switch unless you loose shore power.
Why is this happening?? Well, by code the trailer ground and neutral are isolated, just like all the outlets in your house.
However, when under generator power, the transfer switch connects the trailer ground and neutral together, just like the main breaker panel in your house.
So when the transfer occurs, there is a moment when the house sees ground and neutral shorted before it disconnects the house hot and neutral feeds. Bingo, house GFI trips.
However, normally the generator is second in line behind the shore power so the generator shouldn't switch on or trigger the transfer switch unless you loose shore power.
