4. A certain industrial load has an impedance of 0.6 30° at a frequency of 60 Hz. What capacitor connected in parallel with this load causes the angle of the total impedance to decrease to 15° ? Also if the load voltage is 120 V, what is the decrease in line current produced by adding the capacitor ? A. 1.18 mF, 20.7 A B. 1.81 mF, 20.7 A C. 8.11 mF, 20.7 A D. 1.81 mF, 70.2 A E. NOTA
4. A certain industrial load has an impedance of 0.6 30° at a frequency of 60 Hz. What capacitor connected in parallel with this load causes the angle of the total impedance to decrease to 15° ? Also if the load voltage is 120 V, what is the decrease in line current produced by adding the capacitor ? A. 1.18 mF, 20.7 A B. 1.81 mF, 20.7 A C. 8.11 mF, 20.7 A D. 1.81 mF, 70.2 A E. NOTA
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
Chapter6: Power Flows
Section: Chapter Questions
Problem 6.61P
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