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Answer :

A repulsion motor is equipped with commutator.

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Answer : In repulsion motor, zero torque is developed when brush axis coincides with the field axis and brush axis is 90° electrical to field axis.

Answer : The purpose of stator winding in the compensated repulsion motor is to improve power factor and provide better speed regulation.

Answer : Speed torque characteristic of a repulsion induction motor is similar to that of a D.C. compound motor.

Answer : In repulsion motor, maximum torque is developed when brush axis is at 45° electrical to the field axis.

Answer : The repulsion-start induction-run motor is used because of high starting torque.