Answered: approximate equivalent (type L) circuit…

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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approximate equivalent (type L) circuit parameters; There is a 3 phase, star connected, 50 Hz bipolar squirrel cage induction motor given as R1= 1.15 Ohm, R2= 1.4 Ohm, X1=2.4 Ohm, X2=2.93 Ohm. (parameters are given for 50 Hz). This motor can start TL load and run smoothly in a 50 Hz network with an interphase voltage of V1L= 1025.374.

Calculate the phase-to-phase voltage that must be applied so that this motor can produce the same starting torque when operated from a 60 Hz source.

Note: Use approximate equivalent circuitry. Parameters not given will be ignored. Neglecting warming and its effects, skin effect, iron loss, magnetization reactive power. The motor is magnetically linear and no saturation. The voltages and frequencies to be applied do not cause any problems.

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