Answered: A 208 V, 60 Hz, three-phase, four-pole…

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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A 208 V, 60 Hz, three-phase, four-pole induction motor connected in Y has the parameters in Ω/phase : R1 = 0.08, X1 = 0.5, R2 = 0.1, X2 = 0.6. Determine:

a. The slip with which the motor develops the maximum torque and the value of this torque.

b. If the motor is assumed to be a wound rotor, determine the resistance value (per phase) that must be be inserted into the rotor circuit so that the starting torque is equal to 90% of the maximum torque

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