10.33 The steady-state voltage drop between the load and the sending end of the line seen in Fig. P10.33 is excessive. A capacitor is placed in parallel with the 150 kVA load and is adjusted until the steady-state voltage at the sending end of the line has the same magnitude as the voltage at the load end, that is, 4800 V (rms). The 150 kVA load is operating at a pow- er factor of 0.8 lag. Calculate the size of the capacitor in microfarads if the circuit is operating at 60 Hz. In selecting the capacitor, keep in mind the need to keep the power loss in the line at a reasonable level. Figure P10.33 V 10 Q2 j5 Q 4800/0° V (rms) 150 kVA 0.8 lag

10.33 The steady-state voltage drop between the load and the sending end of the line seen in Fig. P10.33 is excessive. A capacitor is placed in parallel with the 150 kVA load and is adjusted until the steady-state voltage at the sending end of the line has the same magnitude as the voltage at the load end, that is, 4800 V (rms). The 150 kVA load is operating at a pow- er factor of 0.8 lag. Calculate the size of the capacitor in microfarads if the circuit is operating at 60 Hz. In selecting the capacitor, keep in mind the need to keep the power loss in the line at a reasonable level. Figure P10.33 V 10 Q2 j5 Q 4800/0° V (rms) 150 kVA 0.8 lag

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

The network shown in Fig. P10.18 consists of a balanced 120 V (rms) Y-source connected in a positive phase se-quence, lossless transmission lines, and an unbalanced Δ(delta)-load with Zab = 14Ω(ohm), Zbc = (6 - j2)Ω(ohm), and Zca = (24 + j6)Ω(ohm). Assign V1 a phase angle of 0°.
The network shown in Fig. P10.19 consists of a balanced 120 V (rms) Δ(delta)-source connected in a positive phase sequence, lossless transmission lines, and an unbalanced Δ(delta)-load with Zab = (6 + j4)Ω(ohm), Zbc = 4Ω(ohm), and Zca = 12Ω(ohm). Assign V12 a phase angle of 0°.
The rms value of the sinusoidal voltage supplied to the convenienceoutlet of a home in the United States is 120 V. What is the maximumvalue of the voltage at the outlet?
The voltage (in Volts) across an element is given as v(t)= 50 cos(6ft +24.7°) whereas the current (in Amps) though the element is i(t) = - 20 sin(6ft +55°); where time, t is the time and f is the frequency in seconds and Hertz respectively. Determine the phase angle between the two harmonic functions
Find the rms value of the signal shown
The frequency of the sinusoidal voltage sourcein the circuit is adjusted until the current io is in phase withvg.1. Find the frequency in hertz.2. Find the steady-state expression for ig (at the frequency found in[a]) if vg=90 cosωt V.
A motor connected to a 220-V supply line from the power company has a current of 7.6 A. Both the current and the voltage are rms values. The average power delivered to the motor is 1317 W. (a) Find the apparent power, the reactive power, and the power factor when ω=377 rad/s. (b) Find the capacitance of a parallel capacitor that will result in a unity power factor of the combination. (c) Find the current in the utility lines after the capacitor is installed.
The given data to be used for getting the RMS Values is 0, 5, 10, 30, 50, 70, 50, 30, 10, 5, 0, -5, -10v. Find the RMS value.
An AC generator having an internal resistance of 2 k*(omega) is connected to an LCR circuit in series as shown in the figure. If the generator supplies an electromotive force, E = 282 sen (100*pi*t) volt, calculate:a) the impedance of the circuitb) the rms value of the current in the circuitc) the voltage drop across L, C and R
The motor inside a blender can be modeled as aresistance in series with an inductance, as shown inFigure.a. What is the average power, PAV, dissipated in theload?b. What is the motor’s power factor?c. What value of capacitor when placed in parallelwith the motor will change the power factor to 0.9(lagging)?
Find the rms current supplied to the load.
The frequency of the sinusoidal voltage sourcein the circuit is adjusted until ig is in phase with vg.1. What is the value of ω in radians per second?2. If vg=15 cosωt V (where ω is the frequency found in [a]), what isthe steady-state expression for ig?