Question

A 4-pole, 3-phase d-wired induction motor has a resistance of 0.2 ohms and a reactance of 1.5 ohms with 200 volts between slip rings when stationary.
Calculate: a) Power supply, frequency and synchronous speed if the motor’s speed is 1440 rpm at full load with 0.04 slip. b) Rotor speed at maximum torque. c) Rotor current per phase at full load. d) Rotor’s p.f.

Answer 1

This is the solution of the given problem.