Answered: 5-1. A synchronous generator has a…

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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PROBLEMS i istic such that rated armay, short.circuit characteristic 5 « ; aa'gﬂ?;ciunﬁ e ion. Rated voltaEo on the sitgap line o ts-unit excitation 1s reduted o, su pf lagging? tor is 80% leading. 51, A synchronous gei current is obtained by obtained by 1.25 per-unit excitat = load at rated voltage, rated VA, and 807 52, Repeat Prob, 5-1 for the case where the foad pover fac 5.3, A synchronous generator has the following rating? 180-KVA, 440-V, 300-rpm, 60-Hz, three-Phase: r~0 and x —02960Q Theuit-sap line it described by the equation £ = 1117, RIS = e b Y-connection, expressed per phase. The short. the field current needed

PROBLEMS
a load at rated voltage, rated kVA, and 80% pf lagging ?
5-2. Repeat Prob. 5-1 for the case where the load power factor is 80% leading.
5-3. A synchronous generator has the following rating:
180-kVA, 440-V, 300-rpm, 60-Hz, three-phase, Y-connection,
r,=0 and x, = 0.296 2
The air-gap line is described by the equation E = 171, expressed per phase. The short.
10.75L. Compute the field current needed

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