Va Vc la In Ic Line Impedance Line Impedance Line Impedance Line Impedance Load Load n Figure 1. Three-Phase Circuits with Line and Load Impedances Load In Figure 1, let's assume that the three-phase circuits are balanced and each has a magnitude (peak value) of 170 V at 60Hz in the positive sequence with Va = 170 VZ0°. The line impedance is (1 +j10) 2, and the load is (20 + j20) 2. Find: a) the line currents (Ia, Ib, Ic) and the neutral current (In) in peak values b) the power loss in each line, including the neutral c) the power factor for each phase of the load.

Va Vc la In Ic Line Impedance Line Impedance Line Impedance Line Impedance Load Load n Figure 1. Three-Phase Circuits with Line and Load Impedances Load In Figure 1, let's assume that the three-phase circuits are balanced and each has a magnitude (peak value) of 170 V at 60Hz in the positive sequence with Va = 170 VZ0°. The line impedance is (1 +j10) 2, and the load is (20 + j20) 2. Find: a) the line currents (Ia, Ib, Ic) and the neutral current (In) in peak values b) the power loss in each line, including the neutral c) the power factor for each phase 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 2.13MCQ

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