Keeping Generator Bond

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bwat

EE
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NC
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EE
A few other recent threads about household generator panels vs interlocking breakers made me think about some household generator hookups. Mainly - what’s the worst case scenario that happens if a homeowner uses a bonded generator and doesn’t switch the neutral?

If the genny was also bonded, you’d have some current on the EGC between generator panel (let’s say they have one) and the generator. But I’m thinking that’d be about the only negative consequence, and how bad is that really? Assuming generator outlet is not gfci protected, it doesn’t jump out at me like a huge issue. It would typically only be for a short amount of time since the generator is only there for emergencies.

I have to think the average homeowner that goes out and buys a generator, doesn’t give a thought about lifting a bond at the generator if they aren’t switching the neutral, and maybe the ones that do think about it, are aware of potential warranty issues if they were to float it the generator. So there have to be countless home generator installs out there with the generator still bonded and no switching of the neutral, and it’s not that big of a deal. So am I right?
 
Not so fast. Some new generators have GFCI output, so if the neutral and ground are connected together after the generator, the generator GFCI trips and the house gets no power. Simply lifting the neutral bond in the generator fixes this issue.

No GFCI output? No operational problem.
 
Correct. In fact i am so unconcerned about it, I never want to hear about this "issue" again. 🤣
Haha tell us how you really feel.


Not so fast. Some new generators have GFCI output, so if the neutral and ground are connected together after the generator, the generator GFCI trips and the house gets no power. Simply lifting the neutral bond in the generator fixes this issue.

No GFCI output? No operational problem.
Thanks. Yes, GFCI would pose a problem as you state. This is why in my OP I said "Assuming generator outlet is not gfci protected".
 
Not so fast. Some new generators have GFCI output, so if the neutral and ground are connected together after the generator, the generator GFCI trips and the house gets no power. Simply lifting the neutral bond in the generator fixes this issue.

No GFCI output? No operational problem.
I guess you missed this in the OP.....

Assuming generator outlet is not gfci protected,
 
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