Originally Posted by weshoff
My electrician has installed a Victron inverter charger, new AC panel. And the negative polarity showed up on the new panel. I believe that it was also present on the old panel but the light was very dim during the daytime.
There is 60 volts between neutral and ground.
I was hoping to find a manual/ wiring diagram for this transformer.
Thank you very much!
As per ABYC and others, any 120v AC SOURCE
should have one of the outputs tied to the AC ground, and that is now your NEUTRAL.
An AC SOURCE
is defined as a source of 120v AC on your boat
that is independent of any other AC supply. This includes an onboard AC generator
, or an DC to AC inverter, or an isolation transformer. None of these have any direct connection to AC power from shore.
(Shore power has its neutral already tied to ground, at the panel that controls the power going out to the dock
pedestel, so no, you DON'T connect shorepower
neutral to ground in the boat. This is also per ABYC)
All 120 v AC switching is done to the hot line, so if you don't have the neutral of an AC source tied to ground, you might get a mild shock from touching the neutral when changing a light-bulb, for example. Also it's a safety
issue in that if the neutral isn't tied to ground, the hot side could contact the boat's metallic structure, but not pop a breaker. This may also mess with the safe operation of ground-fault detection.
This is covered in ABYC section E-11.17. Yes, you can Google
Show this to your electrician.