Answered: Calculate the speed of rotation in…

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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Question

A 250 kVA, 480-V, 60-Hz, 4-pole, Y-Connected synchronous generator with a rated field current
of 5 A was tested and the following data was taken.
a) from OC test – terminal voltage = 500 V at rated field current
b) from SC test – line current = 300A at rated field current
c) from Dc test – DC voltage of 10 V applied to two terminals, a current of 25 A was
measured.
1. Calculate the speed of rotation in r/min
2. Calculate the generated emf and saturated equivalent circuit parameters (armature
resistance and synchronous reactance)

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