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Old 02-25-18, 04:35 PM   #98
randen
Uber EcoRenovator
 
Join Date: Apr 2011
Location: Strathroy Ontario Canada
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NiHaoMike

Well you would think that would work but I tried that. I used a VFD coupled to a 15 KVA 3 phase transformer to provide split or two phase 120/240 volt. Light insignificant loads yes it worked but any load of significant current just faulted out the VFD.

For example any way I had programmed the VFD, for example, the refrigerator would fault the VFD. Tried charging the car at 5 amps but no happiness, the second the contactor closed the VFD switched off.

I'm quite familiar with them but the instantaneous loads are seen as a fault in the motor (transformer) and it would just shut down.

The inverter we are building will cost much less and be more tailored to home use than a similar rated VFD.

Randen
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