Q. In an induction motor, when the number of stator slots is equal to an integral number of rotor slots

  • (A) there may be a discontinuity in torque slip characteristics
  • (B) a high starting torque will be available
  • (C) the maximum torque will be high
  • (D) the machine may fail to start
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✅ Correct Answer: (D) the machine may fail to start
Explanation: when the number of stator slots is an integral multiple of a number of rotor slots the machine fails to start and this phenomenon is called cogging.

Published by Mr. Dubey ⭐ 109.99K Points at 17-Sep-2023 11:28 am in Electrical Drives and Controls (EDC)

Explanation by: Mr. Dubey
when the number of stator slots is an integral multiple of a number of rotor slots the machine fails to start and this phenomenon is called cogging.

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