M

Mr. Dubey • 100.64K Points
Coach

Q. While doing regular checks on the dc machine with the lap connected winding, it is reported to have ammeter fluctuations, this can be due to

  • (A) different air gaps under poles
  • (B) variable reluctances in the core
  • (C) irregular design deformations
  • (D) all of the mentioned
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Explanation by: Mr. Dubey
in a lap winding configuration, if the machine as air gap variations due to the design aspects, it will give circulating current in the windings.

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