AC 3 PHASE INDUCTION MOTOR - Practice Mode
1) Which type of starter is used with reduced voltage tappings for 3 phase induction motor?
Correct Answer: Auto transformer starter
2) How the voltage is reduced in auto transformer starter at the time of starting?
Correct Answer: By adjusting the tappings by handle
3) Which induction motor, the external resistance is added to rotor circuit?
Correct Answer: Slip ring induction motor
4) Which motor is used to produce high starting torque at variable speed?
Correct Answer: 3 Phase slip ring induction motor
5) Why slip ring induction motor is fitted with wound rotor?
Correct Answer: To get high starting and running torque