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green-power-solutions asked

Quatro 8000 in.

Generator conected to 3 off Quatro 8000 in 3 phase , I gave a big problem no one can solve , we are OEM not a solar installer and use this Quatro in our packing machine. Problem we have 3 quatro's are conected to VFD 45 Kw drive a 45 kw motor to pump , VFD starts up on 6 amps per phase no prob , when generator 40 kva get conected and running to quatro inverters do not want to except it , when current is measured between quatro and VFD when the switching over to generator needs to happen we measure 140 amps . If one supply VFD from another generator 3 phase and remove the quatro supply the inverters except the 1 st generator and the current without load sit at 4 amp per phase. What can be the problem for the massive diff in current drawn .

Generator
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1 Answer
Alexandra avatar image
Alexandra answered ·

@Green Power solutions

Usually a 45kw motor would use a 60kw drive.

How big is the generator - 40kva ....The inverter systen is 24kva..... ?

What is likely happening is the frequency or voltage from the generator is changing suddenly as it connects (so it is not stable) causing the inverters to reject them.

If the amps are going up on the load side, maybe there is a problem in the wiring so there is a looped circuit?

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