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Question:

What happens to a stator wound AC permanent magnet motor when the rotor is removed but still powered?

What happens to a stator wound AC permanent magnet motor when the rotor is removed but still powered?

Answer:

You will have an energised choke in one place and a rotor that is still spinning due to intertia but slowing down due to friction. With no rotor load the power consumption will go down. Probably. In real life the rotor would go out of control as you tried to disassemble the motor while working and it would shatter into little bits.
If I understand correctly, you are asking what would happen if a permanent magnet motor had the rotor removed, and then was energized?? Without the counter EMF provided by the rotor's magnetic field interacting with the stator's magnetic field, I think you'd end up with a short circuit. Just a guess though.

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