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tklaos asked

3phase Quattro ESS Generator Instability

We have 3x8000W quattros, BYD batteries and Cerbo for brain.

When charging from generator quattros charging load is jumping.

It goes from 2-9 kW(generator is 16 kW) and load on different quattros could be from 500W to 5000W and generator cant handle this.
Sometimes 1phase quattro is charging with 500W and other 3300W and sometimes with other phase.

System is one year old and started to do this month ago.

Load from consumer side is just 500W.

MultiPlus Quattro Inverter Charger
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Alexandra avatar image Alexandra ♦ commented ·
Do you have phase compensation on?

How is it set?

Is there PV at this time

What is the input current limit? Battery charge amps set to?

Has the generator input been marked as such in the GX menu?



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tklaos avatar image tklaos Alexandra ♦ commented ·

It is "Total of all phases", from manual its says is just for when you have grid.


No PV when generator working.

Input current limit was 16A. When we change to 6A then works more or less correctly as quattros will charge with similar power. When 16A then unsymmetric charging.

Generator input is AC input 2


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