Recent content by snowmaneu1

While I like the idea of using the variable frequency converter combined with single phase 240 to generate the third wire for the well pump 3 phase motor: I see the path forward acquiring the 3 phase 15kva auto transformer taking in my 3 phase inverter wye 400v and producing 3 phase delta...

Thank you for your posts, youve helped me far more than words can convey suffice it to say you've educated and opened a window of direction.

Also a heat pump at 3 phase 240 delta in the mix down the line

Ok got it..With the transformer ill only be feeding it 3 phase 230v delta and will replace the squareD with seimans .. better?

Bingo exact!

Why does it look so wrong ? I'll remove the square D .. the 50 amp is the max input and output for the inverters and recommended by the manual.

The spf5000 cannot do 120/240 ..

These inverters don't do 120/240 In single phase . The well pump is 5 hp 18amp 500 feet down

It does in single phase 208,220,230,240

Thanks for that. I'll get Siemens and remove the square D

It's three phase ..

I thought the primary is what is going into the transformer and the secondary is what's coming out ... this has been quoted as a 15kva 3 phase auto transformer outdoor, 400v wye primary, to 231 v delta secondary. Yup $1,300

Agreed. New inverter(s) capable of 3 phase delta 240v with 120,120,240 is what should have been purchased though the growatt manual is so vague I assumed it was capable. I seem to have two choices in front of me at the moment aside from New inverters. 1) get a 3 phase auto transformer 15kva...

I think the single phase inverter two hots and a ground into a vfd might be the way to go.

Meant ul 1741