Anybody have any three phase equipment in their garage running off of single phase? The big hold up -until now- for my power steering pump dyno was the ability to run a three pahse motor off of single phase electricity. I found static transformers/converters, but they don't let the electric motor run to it's rated HP. Usually 75-80% of rated. Plus they are over 100 bucks when you need to run a 5 hp motor. But a rotary phase converter seems to be the real deal. Problem is that they are expensive to buy new. You get the full rated HP of your motor too. But the $$$ is the hold up. Usually over $500 for a 5 hp or more converter. It seems that you can turn a three phase motor into a three phase converter to drive the real motor. So you'd need two 5 hp motors. One to convert single to three phase and one that does the work. Getting the motors shoudn't be a problem. I found some guides/plans online, and have talked to both an industrial electrician and an electrical engineer and they say that it is very possible. But, does anybody have any firsthand experience with these?