In a synchronous motor, the damping winding is generally used to______________?
Correct answer: D. prevent hunting and provide the starting torque
- A. reduce noise level
- B. reduce the eddy currents
- C. provide starting torque only
- D. prevent hunting and provide the starting torque
- E. none of the above
Explanation
Damper windings act like an induction-motor cage during starting and provide damping when the rotor oscillates around synchronism. Thus, they provide starting torque and prevent hunting.
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