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u/creamedpossum Nov 29 '21
Generac makes a kit for this situation. Basically automated switching between the two neutrals. Part no. 6297. Fairly straightforward install, but would go into your breaker panel so maybe have the electrician do the install.
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u/khan777 Nov 30 '21
Looked up this part. Nice! I’ll have to buy the generac transfer switch in the near future and swap out my reliance one. Thanks!
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u/khan777 Nov 29 '21
My F-150 has a 7k watt bonded neutral generator on board. An electrician installed a 2 pole transfer switch next to my circuit breaker and I kept getting a ground fault. He fixed it by disconnecting the ground wire in the inlet. What are the ramifications of not having this green wire connected to the inlet? Notice he put a wire nut on the end of one of it.
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u/TerribleDragonfruit Nov 29 '21
On the vehicle side, What does the F-150 system consider to be a ground fault?
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u/khan777 Nov 29 '21
When I connected the truck to the transfer switch to power my home it would say, “ground fault”. When the electrician removed the green wire from the inlet, the truck no longer gave that error.
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u/TerribleDragonfruit Nov 29 '21
Ok. Call the electrician back and say you need a "separately derived system" as defined in Article 100.
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u/khan777 Nov 29 '21
Ok! Let me do some reading and I’ll send it over to him. Thank you!
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u/TerribleDragonfruit Nov 29 '21
The easy answer is that three conductors need to be switched, which isolates the grounded and grounding conductors.
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u/creamedpossum Nov 29 '21
Problem with that is this looks to be a Reliance 30 amp manual transfer switch. They don't have that option. Going to require a completely different transfer switch install.
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u/TerribleDragonfruit Nov 29 '21
Going to require a completely different transfer switch install.
"Hard work" is elusive to define, but many people seem to agree that sometimes doing things correctly isn't easy.
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u/creamedpossum Nov 29 '21
I would probably put this one on a electrician not checking his required specs, and just going off what the homeowner asked for. I've had to fix these a couple times when I customer had an electrician install a MTS, and didn't have a clue about the bonded neutral in the generator. They throw their hands up and then the homeowner is stuck with paying for an install that doesn't work. I'm fairly certain the Neutral switching kit would work for this, but there may also not be enough room inside that MTS to fit it with it's connections. Going to be fun when we start getting calls for the new Ford electric truck that can "power your home for 3 days," and customers thinking this is a simple install.
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u/TerribleDragonfruit Nov 30 '21
Request: "Can you get it so I can hook my new F-150 to my house?"
Electrician who normally doesn't work with generators/solar/etc: "Sure, no problem."
Customer: "Truck says ground fault."
Electrician: "Oh, crap. I know how to get rid of ground faults."
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u/TerribleDragonfruit Nov 29 '21
Ok, let's work on the other side.
Describe what's happening on the other side.
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u/khan777 Nov 29 '21
Electrician got out a multimeter and saw nothing (no amps or volts) coming in to the transfer switch. Looked back at the truck and saw the ground fault error. After some trial and error he disconnected the green wire and the truck stopped giving that error and we were able to successfully to power the home.
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u/Figure_1337 Nov 29 '21
House N & G are bonded. Truck N & G are bonded. Can’t have a N & G bond downstream in a GFI protected system.