Q.

When the load is increased from light load in a 3-phase induction motor,

  • ARotor pf increases but stator pf decreases
  • BStator pf increases but the rotor pf decreases
  • CBoth stator and rotor pf increase
  • DBoth stator and rotor pf decrease
Correct Answer : (B)

Stator pf increases but the rotor pf decreases

Hints :

When the load is increased from light load in a 3-phase induction motor Stator pf increases but the rotor pf decreases.

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