a) The phase currents in a delta - connected three-phase load are as follows: between thered and yellow lines, 60 A at p.f. 0.9 leading; between the yellow and blue lines, 40 A at0.95 p.f lagging; between the blue and red lines, 50 A at p.f. 0.8 lagging. The supplyvoltage is 240 V. Draw a labeled diagram of the circuit and calculate the line currents.Note: Use VRY as the reference phasor.b) The two-wattmeter method is used to measure the total power drawn by the load in 1 (a)above. Wattmeter one has its current coil connected in the yellow line and its voltage coilconnected between the yellow and red lines. Calculate:i. The power measured by each wattmeter.ii. The power factor of the load.

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Answered: a) The phase currents in a delta -…

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 2.13MCQ

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Fundamentals Of Energy Systems THQ1 Q1
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