grsthegreat
i have a 22kw whole house that trips 3 GFCI breakers in panel when generator transfer power. Ive never had this issue in the past, but usually the houses have gfci outlets, not breakers. Any ideas?. Its a whole house service rated transfer switch.
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murphy
What is connected to the breakers?  They trip when the current in the hot and neutral is not the same.   An inductive load, like the ballast in a fluorescent light fixture, will cause a trip as the magnetic field is building or collapsing.  Current is flowing in the hot connection and being stored in the magnetic field so there is no corresponding flow in the neutral.
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grsthegreat
some led lights, and general outlets. Oops....I talked to homeowner again, he sent me photos of panel. He told me that they were gfci breakers, but they are arc fault breakers. Maybe I just need to replace them with more current versions. Ive never had issues with these before, and I’ve installed lots of generators.
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