3-ph, 3-wire balanced load with a lagging power factor is supplied at petween lines. A single-phase wattmeter when connected with its current coil n 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 emains unchanged. Calculate the line current and the pf of the load.

3-ph, 3-wire balanced load with a lagging power factor is supplied at petween lines. A single-phase wattmeter when connected with its current coil n 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 emains unchanged. Calculate the line current and the pf of the load.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.45P: Two balanced Y-connected loads, one drawing 10 kW at 0.8 power factor lagging and the other IS kW at...

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