When a salient pole 3-phase synchronous motor is started by induction motor action and its field is connected across a field discharge resistance, starting torque is developed by
A. reluctance torque due to the saliency of the rotor,
B. eddy current and hysteresis torque in pole faces.
C. induction motor torque in the field and damper windings.
D. all of the above
Show Answer
Answer: D
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