O A 460V, 4-pole, 75-hp, 60 Hz, Y-connected, three phase induction motor has full-load torque at 3.5% slip when operating at the rated condition. The per-phase circuit model impedances of the motor are: R = 0.0580 XM = 180 X, = 0.320 x, = 0.3860 All losses maybe neglected in this problem. (i) Compute the voltage and impedance for the Thevenin equivalent circuit for this motor. (ii) How much torque is induced in this motor when operating at the rated condition? (ii) What is the value of rotor resistance, R2? (iv) What is the slip and the corresponding rotor speed at the pullout torque of the motor?

O A 460V, 4-pole, 75-hp, 60 Hz, Y-connected, three phase induction motor has full-load torque at 3.5% slip when operating at the rated condition. The per-phase circuit model impedances of the motor are: R = 0.0580 XM = 180 X, = 0.320 x, = 0.3860 All losses maybe neglected in this problem. (i) Compute the voltage and impedance for the Thevenin equivalent circuit for this motor. (ii) How much torque is induced in this motor when operating at the rated condition? (ii) What is the value of rotor resistance, R2? (iv) What is the slip and the corresponding rotor speed at the pullout torque of the motor?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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