1. A 380 V, 20HP, 60 Hz four-pole Y-connected three phase induction motor has the
following impedances in ohms per phase referred to the stator circuit:
R1 =0.6 ohm, Xl = 1 ohm, R2=0.3 ohm, X2 =0.45 ohm,
(magnetizing
reactance) =25 ohm.
The total rotational losses are 1000W and are assumed to be constant.
The core loss is neglected. For a rotor slip of 2 percent at the rated voltage and
rated frequency, find the motor's stator current. (10%)