Question

Three phase, 480V 40 Hz, 6 pole induction motor R_{1}=R_{2}^{\prime}=0.1 \Omega, X_{1}+X_{2}^{\prime}=X_{e q}=0.5 \Omega Full load slip is 3% η = 90% Starting current (ignore magnetizing current) b. Starting torque c. Maximum torque d. Rotor resistance to be added to the rotor circuit to reduce the starting current by 50% e. Starting torque at case d. f. Rotor resistance to be added to the rotor circuit to increase the starting torque tomaximum g. Starting current at f.

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