Question: An 8 pole, 5 0 Hz , three phase induction motor has rotor resistance of 0 . 3 per phase. Determine the additional rotor resistance

An 8 pole, 50 Hz, three phase induction motor has rotor resistance of 0.3 per phase. Determine the additional rotor resistance to get three-fifth of maximum torque at starting. Neglect stator impedance. The maximum torque is 100 Nm at 700 rpm.

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