Quote:
Originally Posted by kf4rca
90 degrees out of phase??? Never heard of that. Its probably 120, 208, and 240 three phase. That's 4 wire and is still in use today.
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I worked many years at the Louis-Allis company, a firm that made specially and custom electric motors.
Every so-often, they would get an order for a two phase motor for replacement use. That firm was probably the only source! GE and Westinghouse couldn't furnish them. They had a special test console that could be switched for two phase operation.
I worked thirteen years in the test department and twenty years as a plant electrician.