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Old 18-10-2017, 17:16   #16

Join Date: Feb 2008
Location: North Charleston, SC
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Re: Grounding Power Inverter

The answer to the question is:

Follow the manufacturer's instructions. If you don't understand them, call and ask.

No "research" is needed. No engineering either. Do it the way the manufacturer says to do it.

rwidman is offline   Reply With Quote
Old 18-10-2017, 17:35   #17
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Re: Grounding Power Inverter

Originally Posted by a64pilot View Post
My Magnum MS2812 Is wired into the shorepower cable before the circuit breaker panel, this way when you have no shorepower, it will power the whole boat if you like up to its max capacity of course. However my isolation transformer is immediately before the circuit breaker panel as I believe most are.

My zinc consumption was greatly increased, I wasnít getting but maybe two months out of a zinc.

By connecting case ground to the green and yellow AC ground, and of course the negative DC ground to the battery bank negative, I had made a connection between the two, prior to the isolation transformer.

Not wanting to disconnect the inverter and have a floating AC ground, I instead moved my isolation transformer so that it is connected to shorepower before the inverter. Itís a little too soon to declare victory, but so far it appears my zinc consumption has returned to normal.
of course the iso transformer has to be infront of the inverter. you also need a main breaker before the transmformer.

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