question

loopoyu avatar image
loopoyu asked

Single multiplusII with a 3 phases grid inverter

Hello,

I would like to install a MultiPlus-II 48V 5000VA on L1 with a SMA Sunny tripower 8.0 grid inverter. The goal is to inject on the grid and to have batteries backup for essential load and night consumption.

Here would be the setup:

- Sunny Tripower 8.0 with L2 and L3 connected directly to the grid.

- MultiplusII connected on L1 between grid and Sunny Tripower.

- Meter ET340

- GX cerbo + screen.

- 300A 48v battery of pylontec 2000c

- MPPT 250/85 with 3000Wc of PV on the battery

- 8000Wc of PV on the Sunny tripower.


1. Will this setup work? whath do you think?

2. Is the factor 1:1 correct?

3. Is the phases imbalance acceptable?


Many thanks




Multiplus-IIgrid3 phasesplit phase
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2 Answers
Mike Dorsett avatar image
Mike Dorsett answered ·

Basically the SMA tripower will only operate in a three phase system. So whilst the tripower will work when the grid is present, it will not when the grid fails. you might look at 3 MPII3kW worknig as a three phase set, rather than a single MPII5kW.

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loopoyu avatar image
loopoyu answered ·

Thanks for the answer

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