Q1. Two loads Z, 10 + j20 N , Z2 100 – j270, N are connected across a Vs=400Vrms, 50 Hz, source as shown in fig. 1. a) Find the total real power, the reactive power and the power factor at the source, and the total current in uncompensated case (i.e. when no compensation capacitor C is connected to the loads). b) Find the capacitance of the shunt compensation capacitor C to be connected across the loads to improve the overall power factor to 0.866 lagging. 12 R1 10 Ohm R2 Vs 100 Ohm C2 - j270 Ohm L1 +j20 Ohm fig.1

Q1. Two loads Z, 10 + j20 N , Z2 100 – j270, N are connected across a Vs=400Vrms, 50 Hz, source as shown in fig. 1. a) Find the total real power, the reactive power and the power factor at the source, and the total current in uncompensated case (i.e. when no compensation capacitor C is connected to the loads). b) Find the capacitance of the shunt compensation capacitor C to be connected across the loads to improve the overall power factor to 0.866 lagging. 12 R1 10 Ohm R2 Vs 100 Ohm C2 - j270 Ohm L1 +j20 Ohm fig.1

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 2.17P: Consider a load impedance of Z=jwL connected to a voltage and V let the current drawn be I. (a)...

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