Answered: A single-phase, 120 V, 60 Hz,…

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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17. A single-phase, 120 V, 60 Hz, four-pole, split-phase induction motor gave the following blocked
rotor test data:
VIP Main winding 32 4 80
Auxiliary winding 40 4 128
a) Determine the standstill impedances of the main and auxiliary windings.
b) Determine the values of the resistances to be added in series with the auxiliary winding to obtain maximum starting torque.

c) Compare the starting torques and starting currents with and without the added resistance in the auxiliary winding circuit if the motor is connected to a 120 V, 60 Hz supply

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