. A 3-ph, 3-wire balanced load with a lagging power factor is supplied at 400 V between lines. A single-phase wattmeter when connected with its current coil in the A-line and potential coil between A and B lines gives a reading of 6 kW. When the same terminal of the voltage coil are switched over to B- and C- lines, the current coil connections remaining the same, the reading of the wattmeter remains unchanged. Calculate the line current and the pf of the load.

. A 3-ph, 3-wire balanced load with a lagging power factor is supplied at 400 V between lines. A single-phase wattmeter when connected with its current coil in the A-line and potential coil between A and B lines gives a reading of 6 kW. When the same terminal of the voltage coil are switched over to B- and C- lines, the current coil connections remaining the same, the reading of the wattmeter remains unchanged. Calculate the line current and the pf of the load.

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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