Moving a circuit to the Inverter subpanel
Not so much asking how here, but wondering about any repercussions. In my 2019 Winnie I have a 2KW pure sine inverter, with it's own subpanel. The subpanel powers all my outlets, except one! And this ...
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rgatijnet1 wrote:steved28 wrote:rgatijnet1 wrote:
When you say that you moved the neutral to a different buss, what did you mean?
In a residential structure, the neutral and the ground are usually tied together in the electrical panel. With an RV, the neutral and ground are kept separate in the electrical panel.
I was surprised to see this also, there is a common bus for the ground (both main and subpanel) but separate buses for the neutral. And sure enough, if I left the neutral on the main bus, it did not work.
Were you plugged in to shore power when you tried the outlet? If you were, then the neutral and grounds would have been tied together at the shore connection.
I think Steve is saying that there are three bus bars in the box: one ground (for everything), one neutral for the shore power, and one neutral for the inverter.
It's not too surprising since some inverters do not actually have their neutral output at the same potential as (chassis) ground, but are actually producing a pair of out-of-phase 60V AC waves at the neutral and hot outputs. This approach means that the internal voltage rails can be half what they would otherwise be. (Others use a similar approach but have the output floating and electrically isolated from the DC input, and in those the neutral output could be tied to ground.
