How does 3 phase battery wiring work?

Q&A and troubleshooting
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1

Multiplus II

When linked - do you have one large battery bank and the 3 units connected to there same battery bus? Or does each Multiplus run its own battery bank?

I want to input and output 208 3 phase. Can you current limit the battery charge current when in 3 phase mode?

Many Thanks

2

All must be on the same battery bus, with equal wiring and etc. Have a look at the parallel & 3-phase manual, and all docs/training videos linked therein: Parallel, split- and three-phase VE.Bus systems [Victron Energy]

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3

Very directly though.

Yes

No

Yes the programming is very configurable and flexible.

4

What is 208 threephase?

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5

Thank you. Next question, can I wire the 120v out from each of the three units and get 208v? For example tie L1-L2, L2-L3, and L3-L1 to get 208 3 phase out?

Thanks

6

You run split phase from two legs of the 3 phase to double your voltage. It’s like 240 split phase.

7

208V threephase is three 120V sources in wye config. Same as the european 230V/400V, just with lower voltage

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So to get that out of Victron units, you can follow the regular three phase stuff of the guide above

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