Which sub-forum for questions about 220V single phase or even 3-phase inverters?

[445supermag]

I thinking about a non-grid connected system for backup, one of the main things I would want to power is our well pump which is 220V single phase. I've also been toying with the idea of a 3-phase system for my big equipment shed, it only has an underpowered 110v line, and we have no 3-phase anywhere near. I'd like to be able to run 3-phase metal working machines, but the power company wants crazy money to run 3-phase out there. Which sub-forums would be my best bet for these sorts of questions? Thanks.

 

[acdoctor]

Are you looking for U.S. 240 volt split phase? If so you can do it fairly reasonable. The three phase will cost you a lot and still won’t have the motor starting amps you will be looking for. You might look into motor generated addaphase power from 240 volt split phase.

 

[RoadRash]

You might want to look at 3 phase inverters. Just oversize them to handle motor starting loads.

 

[Daddy Tanuki]

sigineer offers 208 3 phase inverters from 4w up to 18kw or so but you would need a honking big battery bank to run it for very long. I looked into them for the same reason and the math just did not work out. it was cheaper to buy a used 3 phase diesel genset then to try and run it all off of solar.