Q.In a salient pole synchronous machine, the air gap is

  • Auniform under the whole pole shoe
  • Bleast under the middle of the pole she and increases outwards
  • Clargest under the middle of the pole shoe and decreases outwards
  • Dleast at one end of the pole shoe and increases to the maximum value at the other end.
Correct Answer : (B)

least under the middle of the pole she and increases outwards

Hints :

In a salient pole synchronous machine, the air gap is least under the middle of the pole she and increases outwards.

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