question

Mariusz Zieliński avatar image
Mariusz Zieliński asked

Can inverters be connected in parallel for 3 phase setup

Is it possible to connect 6 units together in configuration two per phase ?
Are there any differences between MultiPlus, MultiPlus-II, Quattro, and Quattro-II ?

Goal is to provide redundancy in case of single unit failing.

MultiPlus Quattro Inverter Charger
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3 Answers
nickdb avatar image
nickdb answered ·

Yes, apart from 8 and 10k multis which can’t be paralleled.

Read the spec sheets carefully and also the victron 3-phase and parallel system guide.

These are complex systems and best not done if the background and training is lacking.

Parallel does not provide redundancy.

If one unit in the system has an issue, they all go down.

You can however then manually change the configuration but this is not a configuration designed for redundancy.

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marekp avatar image
marekp answered ·

@Mariusz Zieliński

Yes.

Redundancy is possible but not automatic.

If two fail you can reprogram system configuration for the remainning ones.

For example:

L1 1x, L2 2x, L3 1x

6x.jpg

screen-shot-2022-09-28-at-125911-pm.png



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Mariusz Zieliński avatar image
Mariusz Zieliński answered ·

Thank you all for the answers. I was just looking for ability to keep 3 phases active until replacement arrives. Manual reconfiguration is sufficient. Having 2 units per phase already lowers probability of failure.

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