1.8. A balanced three-phase Y-connected source has a line voltage of 208 V and feeds two balanced Y-connected loads. The per-phase impedances of the two loads are 20 + j70 N and 50 + j30 N. Calculate the power supplied to each load by the source. What is the power factor of each load? What is the overall power factor? 1.9. In Exercise 1.8 three A-connected capacitors are connected in parallel with the two loads in order to improve the power factor to 0.8 lagging. What must be the impedance of each capacitor? What is the size of each capacitor if the line frequency is 60 Hz?

1.8. A balanced three-phase Y-connected source has a line voltage of 208 V and feeds two balanced Y-connected loads. The per-phase impedances of the two loads are 20 + j70 N and 50 + j30 N. Calculate the power supplied to each load by the source. What is the power factor of each load? What is the overall power factor? 1.9. In Exercise 1.8 three A-connected capacitors are connected in parallel with the two loads in order to improve the power factor to 0.8 lagging. What must be the impedance of each capacitor? What is the size of each capacitor if the line frequency is 60 Hz?

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 2.19P: Consider a single-phase load with an applied voltage v(t)=150cos(t+10)volts and load current...

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