If the star-connected rotor winding of a 3-phase induction motor has a resistance of 0.0192per phase and a standstill reactance of 0.08 2 per phase, what must be the value of resistance per phase of the stator to give a maximum starting torque? What is the percentage slip when the starting resistance has been reduced to 0.0202 per phase if the motor is still exerting the maximum torque? Ans[0.072; 37.5%]

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Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.