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1. Ifa field excitation of 10 A in a certain alternator gives a current of 150 A on short-circuit and a terminal voltage of 900 V on open-circuit, find the internal voltage drop with a load current of [360 V] 60A.

1. Ifa field excitation of 10 A in a certain alternator gives a current of 150 A on short-circuit and a terminal voltage of 900 V on open-circuit, find the internal voltage drop with a load current of [360 V] 60A.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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1. Ifa field excitation of 10 A in a certain alternator gives a current of 150 A on short-circuit and a terminal voltage of 900 V on open-circuit, find the internal voltage drop with a load current of [360 V] 60A. 2. A 500-V, 50-kVA, 1-o alternator has an effective resistance of 0.2 Q. A field current of 10 A produces an armature current of 200 A on short-circuit and an e.m.f. of 450 V on open- circuit. Calculate the full-load regulation at p.f. 0.8 lag. [34.4%]
Transcribed Image Text:1. Ifa field excitation of 10 A in a certain alternator gives a current of 150 A on short-circuit and a terminal voltage of 900 V on open-circuit, find the internal voltage drop with a load current of [360 V] 60A. 2. A 500-V, 50-kVA, 1-o alternator has an effective resistance of 0.2 Q. A field current of 10 A produces an armature current of 200 A on short-circuit and an e.m.f. of 450 V on open- circuit. Calculate the full-load regulation at p.f. 0.8 lag. [34.4%]
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