The phase currents in a delta-connected three-phase load are as follows: between the red and yellow lines, 30 A at p.f. 0.707 leading; between the yellow and blue lines, 20 A at unity p.f.; between the blue and red lines, 25 A at p.f. 0.866 lagging. Calculate the line currents and draw the complete phasor diagram. ANS:  21.6 A in R, 49.6 A in Y, 43.5 A in B

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 2.7P: Let a 100V sinusoidal source be connected to a series combination of a 3 resistor, an 8 inductor,...
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The phase currents in a delta-connected three-phase

load are as follows: between the red and yellow lines,

30 A at p.f. 0.707 leading; between the yellow and blue

lines, 20 A at unity p.f.; between the blue and red

lines, 25 A at p.f. 0.866 lagging. Calculate the line

currents and draw the complete phasor diagram.

ANS: 

21.6 A in R, 49.6 A in Y, 43.5 A in B

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