Electrical Machines
Which of the following statements is/are correct ?

None of these
 Compensating winding will act under the pole.
 Both A and B.
 Inter pole winding will act in interpolar region.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Cogging of induction motor occurs at

 low voltage and when stator and rotor poles are not equal.
 high voltage and when stator and rotor poles are equal.
 low voltage and when stator and rotor poles are equal.
 high voltage and when stator and rotor poles are not equal.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
In case of 3 - Φ IM, plugging means

  locking of rotor due to harmonics.
  interchanging two supply phases for quick stopping.
  pulling the motor directly on line without a rotor.
  starting the motor on load which is more than the rated load.

ANSWER DOWNLOAD EXAMIANS APP