Q.

The phasor addition of stator and rotor mmfs is possible In a cylindrical rotor synchronous machine because

  • ATwo mmfs are rotating in opposite directions
  • BTwo mmfs are rotating in same direction at different speeds
  • CTwo mmfs are stationary with respect to each other
  • DOne mmf is stationary and the other mmf is rotating
Correct Answer : (C)

Two mmfs are stationary with respect to each other

Hints :

The phasor addition of stator and rotor mmfs is possible In a cylindrical rotor synchronous machine because Two mmfs are stationary with respect to each other.

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