Building static phase converter?

Tell him you'll need three years and $250,000, but no guarantees.

John

You'll never be able to make one for what you could buy one for. Just tell the boss to spring the couple hundred bucks, because if you try to make one from scratch, the bill will be approaching $10,000.00, before any hardware is even in place.

Good Luck! Rich

Cheaper to buy 1 but not hard to make, visit the IR website look for the "power train" product.

Anyway, I agree with the OP's boss that the circuit looked pretty simple, but as I recall it did call for an old motor that had to be rated high enough to handle the desired loads. Your talking about a rotary phase converter. This is what we should be using but I'm not incharge just the drone who does all the work Ken

I think what the OP is talking about is not an active device (switchmode or whatever), but a simple circuit of capacitors and old motor windings or something. A relative who has a small machine shop in his garage uses this sort of circuit to run his 3-phase machines from his normal 220 mains. (I'm not gonna get into whether the mains are single phase or two phase!) Anyway, I agree with the OP's boss that the circuit looked pretty simple, but as I recall it did call for an old motor that had to be rated high enough to handle the desired loads. I don't think the motor turned, so it could still be called a "static phase converter", but I suspect that there is another name that machinists use for these gizmos, and I'm sure there must be plans on the Web. Maybe try search terms like "3-phase converter"?

Best regards,

Bob Masta dqatechATdaqartaDOTcom D A Q A R T A Data AcQuisition And Real-Time Analysis

My father had a rotary converter made from a "friend" electrician, which only cost him a few hundred bucks. The motor he had already, which was 10HP. Worked very nicely.

Mike