Oliver1 - 10/19/2012 22:22 VFD's require 3 phase motors. They can be cheaper than single phase, but probably not cheaper than an already installed single phase. Back before I'd ever heard of a VFD or Phase Converter the auctioneers at sales that had 3 phase equipment practically had to beg for someone to take the stuff. I remember an auction at a small elevator/feed mill that had all 3 phase stuff, good sized motors (5-20hp) were selling for less than scrap price. Should have bought just about everything on that sale including the feed truck. |