Q/4 A 3000 kVA, 3-phase, star-connected, 50 Hz, 2800 V alternator has resistance 0.120. A field current of 60 A produces a short circuit equal to full load current of 618 A in each line. The same field current produces an emf of 800 V on open circuit. Determine 1-Synchronous Impedance . 2-Synchronous Reactance. 3-Phase Current.4-The excitation voltage of the machine at 0.8 power factor lagging. 5-The full load regulation at 0.8 power factor lagging.

Q/4 A 3000 kVA, 3-phase, star-connected, 50 Hz, 2800 V alternator has resistance 0.120. A field current of 60 A produces a short circuit equal to full load current of 618 A in each line. The same field current produces an emf of 800 V on open circuit. Determine 1-Synchronous Impedance . 2-Synchronous Reactance. 3-Phase Current.4-The excitation voltage of the machine at 0.8 power factor lagging. 5-The full load regulation at 0.8 power factor lagging.

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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