The figure below shows a 60-Hz balanced star-star three-phase circuit.(a) For the equivalent circuits of the load impedance Z shown in (ii), calculate the load impedance Z, the line current IA, the power factor, and the total average power delivered to the three-phase load.(b) The power factor is corrected to 1.00 by inserting a capacitance in parallel to the resistive and inductive load as shown in (iii). Determine the capacitance value C.

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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The figure below shows a 60-Hz balanced star-star three-phase circuit.
(a) For the equivalent circuits of the load impedance Z shown in (ii), calculate the load impedance Z, the line current IA, the power factor, and the total average power delivered to the three-phase load.
(b) The power factor is corrected to 1.00 by inserting a capacitance in parallel to the resistive and inductive load as shown in (iii). Determine the capacitance value C.

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