Converter causing a ground fault trip.
My son's camper has a 30 amp converter/charger that causes the ground fault breaker on the campground post to trip. It has also caused other ground fault breakers to trip. I worked at tracing out ...
Forum Discussion
All of the AC devices leak some current from the hot lead and neutral lead to the ground wire. The power converters tend to be among the biggest leakers. The leakage is usually close to being balanced between the hot and neutral, having little or no effect on the GFCI. If you get one device with enough unbalance leakage, it will trip the GFCI. Or if there are several devices with unbalanced leakage that don't trip the GFCI individually, they could trip it together. This could explain why the converter seems to be the cause of the GFCI trip when in the RV, but not when it's out. Or it could be unbalanced converter leakage from the AC input to the negative output, which is grounded when the converter is installed. Unlike other opinions, mine is that an RV that trips a GFCI should be "grounded" (i.e. taken out of service) until it's fixed.
