Question

A 60 Hz, 360 V, 3 phase, 6 pole, Y-connected induction motor is driving a load at 1100 rpm.The combined friction, windage and stray power losses are 200 W. The motor parameters referred to the stator are

(i) Draw the per phase approximate equivalent circuit for the motor. (ii) Find the slip (iii) Calculate the equivalent rotor current. (iv) Determine the stator copper loss and rotor copper loss. (v) Determine the developed mechanical power. (vi) Find the output torque

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