Q. A 50Hz 20 poles 3 phase I.M. has a full load slip 1.33%. Its rotor impedance per phase on standstill is 0.02+j0.3ohms. Then the ratio of starting torque to the maximum torque is____. (Solved)
1. 0.384
2. 0.527
3. 0.132
4. 0.854
- c. 0.132
1. 0.384
2. 0.527
3. 0.132
4. 0.854