Capacitor in split phase induction motor is used to

Electrical Engineering XYZ MCQs

Capacitor in split phase induction motor is used to:

  1. Start the motor
  2. Improve the starting torque
  3. Reduce the harmonics
  4. Improve the power factor

Correct answer: 1. Start the motor

Explanation: In a split phase induction motor, the capacitor is primarily used to improve the starting torque. The capacitor is connected in series with the auxiliary winding, creating a phase difference between the currents in the main and auxiliary windings. This phase shift results in a rotating magnetic field, which significantly increases the starting torque of the motor. This assists in the initial starting of the motor. Once the motor reaches a certain speed, the capacitor and auxiliary winding are often disconnected from the circuit via a centrifugal switch or other control device.

Leave a Reply