You've got one thing going fo you - you don't need to step up the voltage. If you did, I wouldn't be able to recommend this, but I can:Hello,
I have a 220v 3 phase 8HP motor, the problem is my shop only has single phase 220v power. What is the best, and by best I mean cheapest, option to convert this power.
Thanks
I'd say that used to be the case, but not anymore. Digital Signal Processing and micro-controllers allow for some amazingly efficient and capable phase converters these days. Check these out http://www.phaseperfect.com/ - not cheap but they will outperform RPCs any day of the week and give you utility grade or better power at performance levels you won't find in a RPC."static" converters are very inefficient. A RPC is really the way to go.