Answered: A 3.3kV, 20-pole, 50Hz, three phase…

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 3.3kV, 20-pole, 50Hz, three phase star-connected induction motor with a slip-ring rotor runs at a speed of 294rpm when full load torque is applied. Assume the motor to have a resistance and standstill reactance of 0.28Ω and 0.025Ω respectively per phase. Neglect the stator impedance and determine:

a. the full-load slip

b. the ratio of maximum torque to full load torque.

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