Q2/A// A 6-pole, 50 Hz, 3-phase induction motor has a rotor resistance of 0.24 2 per phase and runs at 950 rpm at full-load. A maximum torque of 15 Nm at 880 r.p.m and the stator impedance is assumed to be negligible. Calculate: (a) The full load torque and power factor. (b) The resistance to be added to the rotor circuit to obtain 60% of the maximum torque at starting.

Q2/A// A 6-pole, 50 Hz, 3-phase induction motor has a rotor resistance of 0.24 2 per phase and runs at 950 rpm at full-load. A maximum torque of 15 Nm at 880 r.p.m and the stator impedance is assumed to be negligible. Calculate: (a) The full load torque and power factor. (b) The resistance to be added to the rotor circuit to obtain 60% of the maximum torque at starting.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 6RQ: Name three factors that determine the torque produced by an induction motor.

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