Originally Posted by
Arjay
Folks, I have 220v 1P power that I need to convert to 3P. The 3P will get stepped up to 380v 3P to feed a VFD that drives a 7.5kw spindle motor.
In terms of 1P to 3P conversion, as far as I know, there are 2 main approaches:
1) RPC
2) Phase Perfect converter
I like the idea of the solid state Phase Perfect over the RPC, but I don't like the idea of its cost.
How about a 3rd option?
What about using an overrated 220v 3P VFD inverter and feed it 220v 1P power using the [Hitachi] technique outlined in other threads?
It seems I can get a 220v 3P 15kw VFD for about $800 vs. $3200 for a Phase Perfect.
Am I missing something here or will this approach work?
Thanks