Question: A 2-pole, 440 V, 50 Hz induction motor develops rated torque at a speed of 2960 rev/min; the corresponding stator and rotor currents are 60

A 2-pole, 440 V, 50 Hz induction motor develops rated torque at a speed of 2960 rev/min; the corresponding stator and rotor currents are 60 A and 150 A, respectively. If the stator voltage and frequency are adjusted so that the flux remains constant, calculate the speed at which full torque is developed when the supply frequency is (a) 30 Hz, (b) 3 Hz

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