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A 19 kVA, 419 V, 50-Hz, 3-φ, star-connected synchronous generator gave the following test data :

A 19 kVA, 419 V, 50-Hz, 3-φ, star-connected synchronous generator gave the following test data :

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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A 19 kVA, 419 V, 50-Hz, 3-φ, star-connected synchronous generator gave the following test data :

Field current (A): 2 4 6 7 8 10 12 14
Terminal volts: 155 287 395 440 475 530 570 592
S.C. current : 11 22 34 40 46 57 69 80

Resistance between any two terminals is 0.3 Ω

Find regulation at full-load 0.8 p.f. lagging by synchronous impedance method. Take ZS corresponding to S.C. current of 80 A.

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