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 RV generator's ground (and neutral) are connected to the RV frame through the generator's ground connection (which is also used for the 12V return, so it's a good solid connection). Depending on the installation it might also happen to be bonded by the mounting bracket, but the design doesn't rely on that. That is immaterial from the point of view of the 120V electrical system, though, since it has a ground, neutral, and hot coming from the generator, and the neutral and hot are bonded together in the generator. It would work the same if the generator were not electrically bonded to the RV chassis directly.
Since the transfer switch switches both the hot and the neutral wires on an RV, the RV generator's neutral bond is only seen by the EMS (and three light tester and so forth) when it's connected and operating. Otherwise, it sees whatever bond is or is not there at the shore power cord; the only thing left connected to the generator is the safety ground, which is continuous throughout the AC system.
Since the transfer switch switches both the hot and the neutral wires on an RV, the RV generator's neutral bond is only seen by the EMS (and three light tester and so forth) when it's connected and operating. Otherwise, it sees whatever bond is or is not there at the shore power cord; the only thing left connected to the generator is the safety ground, which is continuous throughout the AC system.
