Neutral to Frame vs Floating Neutral Question
Been discussed here a few times, but can't remember the difference if any. Onan here has neutral bonded to frame and it is for RV use. https://www.usedvictoria.com/ReportSelectUsedAdPhoto2?use...
Forum Discussion
The Onan generator in the ad is a model for installation, not a portable generator. It's a very, very common 4kW model used in a great many class C and smaller class A motorhomes, though the gasoline fueled variant is more popular than the LPG one. I have one of these (a gasoline version) in my motorhome, in fact, though quite possibly a different spec level.
Portable generators don't have earth and neutral bonded because there is little if any safety to be gained by doing so in that application (neither one is typically earthed, and the entire output is floating, so fault current to earth is minimal to non-existent) and because it would lead to difficulties if the generator were ever connected to power an existing system with a ground/neutral bond. Having two bonds is a bad thing, I think at least partly because it leads to the safety ground becoming a current carrying conductor under non-fault conditions.
Portable generators don't have earth and neutral bonded because there is little if any safety to be gained by doing so in that application (neither one is typically earthed, and the entire output is floating, so fault current to earth is minimal to non-existent) and because it would lead to difficulties if the generator were ever connected to power an existing system with a ground/neutral bond. Having two bonds is a bad thing, I think at least partly because it leads to the safety ground becoming a current carrying conductor under non-fault conditions.
