For the circuit shown, ZL = 21 – j45 2. What component is needed to form impedance ZpFc in parallel with Z, such that the load achieves unity power factor? 1520° V (A ZL ZPFC w = 175 rad/s О 313.1 тН O 671.0 mH O 1.97 H 4.22 H

For the circuit shown, ZL = 21 – j45 2. What component is needed to form impedance ZpFc in parallel with Z, such that the load achieves unity power factor? 1520° V (A ZL ZPFC w = 175 rad/s О 313.1 тН O 671.0 mH O 1.97 H 4.22 H

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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Concept explainers

Z parameter

The Z-parameters that are the impedance parameters of a two-port network are defined by expressing the two-port voltages V1 and V2 in terms of two-port currents I1 and I2. The Z-parameters are calculated by open circuiting one of the two ports at a time henceforth they are called open-circuit impedance parameters.

Question

For the circuit shown, ZL = 21 – j45 2. What component is needed to
form impedance ZpFC in parallel with Z, such that the load achieves unity
power factor?
1520° V (A
ZPFC
w = 175 rad/s
O 313.1 mH
O 671.0 mH
O 1.97 H
4.22 H

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