The rotor slots, in an induction motor, are usually not quite parallel to the shaft because it_____________?
Correct answer: C. helps in reducing the tendency of the rotor teeth to remain under the stator teeth
- A. improves the efficiency
- B. helps the rotor teeth to remain under the stator teeth
- C. helps in reducing the tendency of the rotor teeth to remain under the stator teeth
- D. improves the power factor
Explanation
Rotor-slot skewing prevents rotor and stator teeth from remaining directly aligned, thereby reducing cogging, magnetic locking, noise, and torque pulsations. It is not primarily used to improve efficiency or power factor.
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