The motor is a brush type motor. As far as the proper time to turn on the field current, I know that the speed is important but I'm wondering about the rotor angle. Is the proper rotor angle that important? I've asked a couple of people who build motor starters and I'm getting conflicting...
I have a Westinghouse 400Hp synchronous motor attached to a XLE air compressor. Currently I’m using a No. 6 motor starter with a DC power supply for the field excitation and the proper field discharge resistors and relays. The DC field voltage relay kicks in 8 sec after start up to allow the...
