Fl-Krawler
Well-known member
I have a 100hp rotary phase converter I am trying to get up and running. Its being fed by a 600amp service and has a smaller single phase 120v motor to start it. It appears the motor is missing the 9 pin terminal block and only has 3 large 2 gauge wires coming out of it. I have pulled the end caps off the motor and there are no other wires visible coming from the windings. It appears from the data plate that since I'm looking to produce 230v 3ph I should be able to wire in the two 120v legs of my single phase and be ok.. the problem.i am.running into is as soon as I energize the single phase 240v into the motor it throws a 50amp breaker immediately. Is the missing terminal block missing my problem or other things like the breaker being to small. I don't think the breaker would be the issue if there is no load while the smaller starter motor is energized and running.