Section 11.8Power Factor Correction11.69 Refer to the circuit shown in Fig. 11.88.(a) What is the power factor?(b) What is the average power dissipated?(c) What is the value of the capacitance that will givea unity power factor when connected to the load?120 V rmsZ 10 +j12260 Hz

In this question, 1.Find the power factor of the load 2. active power dissipation 3. value of…

Answered: Section 11.8 Power Factor Correction…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Design a circuit which will correct a load of 158kW at 0.85 lagging power factor to 0.97 lagging power factor. Assume that the load is supplied by a 230V (rms), 60 Hz line. 9.818mF 2.921mF 5.841mF 4.909mF
PRACTICE PROBLEM 11.3 8/45° V 392 www jlQ In the circuit of Fig. 11.4, calculate the average power absorbed by the resistor and inductor. Find the average power supplied by the voltage source. Answer: 9.6 W, 0 W, 9.6 W.
An alternating voltage is represented by 'v' = 235 sin (102 t) volts. Find: (i) Time period, (ii) RMS value and (ii) instantaneous value at 23 ms. Time period, T = RMS value, Vrms = Instantaneous value, v =
3. Determine the Real power, the Reactive power, The complex power and the power factor for the following: a) 1 = 240 < 50 A rms °, V = 27 < -35 ° V rms b) 1=2<-150° Arms, Z = 2000 <-35 °
3 Determine the rms value for the waveform in Fig. 11.64. i(t) 5 0123 34 56 78 9 10 t
#4. Calculate the rms value for each of the following functions: (a) i(t) = 10 A (b) v(t) = 4 + 3 cos 5t V (c) i(t) = 8 - 6 sin 2t A Please show all work step by step problems (d) vt) = 5 sin t + 4 cost V
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1. A motor load consists of a resistance of 6 Ohms in series with an inductance of 12 mH. Assume 120Vac, 60 Hz supply. a. What is the complex impedance of the load? b. What is the ac current through this load? c. What is theta, the angle between voltage and current through this load? d. What is the power factor? e. What capacitance should be added in parallel with this load to correct the power factor to 1? f. What is the current from the supply when the power factor is corrected?
Calculate the power factor of the entire circuit of Fig. 11.19 as seen by Practice Problem 11.10 the source. What is the average power supplied by the source? 10 2 82 Ar 165/0° V rms j42 Figure 11.19 For Practice Prob. 11.10.
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An industrial plant uses two 3-phase induction motors rated at 460 V. At full load one draws 232 A at 0.85 pf lagging: the other draws 169 A at 0.82 pf lagging. Find the kVA rating of a synchronous capacitor that can serve to bring the plant power factor to 0.9 lagging.
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Section 11.8 Power Factor Correction 11.69 Refer to the circuit shown in Fig. 11.88. (a) What is the power factor? (b) What is the average power dissipated? (c) What is the value of the capacitance that will give a unity power factor when connected to the load? 120 V rms Z= 10 +j122 60 Hz