Generally, the rotor winding of 3 phase wound rotor induction motor is connected in which configuration:
- Delta
- Star
- Any of above
- None of above
Correct answer: 2. Star
Explanation: Generally the rotor winding of 3 phase wound rotor induction motor is connected in star configuration. This enables to connect additional external resistance in to the circuit so as to increase the starting torque as well as to decrease the starting current. Once the motor attains certain speed, the external resistance is disconnected.