Three-phase asynchronous motor with a nominal value of 20 kW, 6 poles. It has a voltage value of 420 volts in a 50 Hz network. At 950 rpm, it draws 50 Ampere current from the network. Since the iron and friction losses total 1000 watts, calculate the total copper losses and the shaft torque? A) 1107 watts, 203 Nm B) 1105 watts, 201Nm C) 1108 watts, 204 Nm D) 1106 watts, 202 Nm

Three-phase asynchronous motor with a nominal value of 20 kW, 6 poles. It has a voltage value of 420 volts in a 50 Hz network. At 950 rpm, it draws 50 Ampere current from the network. Since the iron and friction losses total 1000 watts, calculate the total copper losses and the shaft torque? A) 1107 watts, 203 Nm B) 1105 watts, 201Nm C) 1108 watts, 204 Nm D) 1106 watts, 202 Nm

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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