question

Scott Simpson avatar image

Three phase from one phase via Quattro's.

Hi If I configure 3X15KVA Quattro's to provide 3 phase output, could I use a single phase AC in to convert a single phase supply to a three phase supply?(As long as a I turn off act as group on the veBus config) If so would they convert the 100 amp 230 Volt supply on the AC in to (roughly) a 33 Amp 400 Volt Supply on the AC out.

MultiPlus Quattro Inverter Charger
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What are the limitations on this? For instance could I convert single phase AC to three phase AC without a battery connected to the system?

Hi @Scott Simpson

No that is not possible, you need a battery.

Scott Simpson avatar image Scott Simpson Daniël Boekel (Victron Energy Staff) ♦♦ ·

I see. So if I was using three 48/15000/200 Quatrro’s, I could perhaps get 8-8.5 KVA three phase out put. If the one Quattro with The 230V input was charging the Battery (200X50 -losses) As a aside how would this affect the cycling of the battery, If there was a near constant input and output of 10/8 KVA?

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Daniël Boekel (Victron Energy Staff) avatar image

Hi @Scott Simpson

Yes this is possible, as long as you don't want to use ESS (with a grid code selected it is not possible)

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daryl avatar image

Wouldn't you need a 4th one to convert the 230V into 48V to push into the Quattros?

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Could one pass through 240v and charge the batteries which would then supply the other two units. Or is individual charging not possible when using units in three phase configuration?