Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Question
Chapter 20, Problem 18P
To determine
(a)
To draw:
The power triangle for the load.
To determine
(b)
The value of the capacitor to make the power factor of the load unity.
To determine
(c)
The change in supply current from compensated to uncompensated system.
To determine
(d)
The value of capacitor and the difference in the source current from uncompensated to compensated load when the power factor is increased to
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Students have asked these similar questions
a) A sinewave is having a frequency of 50 Hz and instantaneous value of 250 Volts at 1.1
milli seconds. Find
i) The maximum value of sinusoidal voltage waveform and
ii) The value of voltage at 2.1 milli seconds.
b) Determine the instantaneous equation for the voltage waveform shown in figure, if
Vp=150 Volts, Time period is 15 milli seconds and =50 degrees.
Vp
t = 0
Ф
II
a) A sinewave is having a frequency of 100 Hz and instantaneous value of 150 Volts at 1.4 milli seconds. Find
i) The maximum value of sinusoidal voltage waveform and
ii) The value of voltage at 1.8 milli seconds.
b) Determine the instantaneous equation for the voltage waveform shown in figure, if Vp=100 Volts, Time
period is 10 milli seconds and o =30 degrees.
Vp
t= 0
Upload your Answers steps in the "Final Answer Submission" Link provided in the Moodle.
a) (i) Maximum value =
a) (ii) Value of voltage at 1.8 ms
b) Angular frequency =
Alternator A (100 kVA, 3-f, 240 V, 60 Hz, 1800 rpm) is operating in parallel with alternator B (125 kVA, 3-f, 240 V, 60 Hz, 1800 rpm). The load of alternator A is 70 kW at 85% pf leading and the load of alternator B is 85 kW at 75% pf leading. Determine the pf of load.
Chapter 20 Solutions
Introductory Circuit Analysis (13th Edition)
Ch. 20 - For the battery of bulbs (purely resistive)...Ch. 20 - For the network of Fig. 20.49 : a. Find the...Ch. 20 - For the network of Fig. 20.50 : a. Determine the...Ch. 20 - For the system of Fig. 20.51 : a. Find the total...Ch. 20 - For the system of Fig. 20.52 : a. Find PT, QT. and...Ch. 20 - 6. For the system of Fig. 20.53 : a. Find PT, QT....Ch. 20 - For the network of Fig. 20.54 : a. Find the type...Ch. 20 - For the circuit of Fig. 20.55: a. Find the...Ch. 20 - For the network of Fig. 20.56 : a. Find Is. b....Ch. 20 - Repeat Problem 9 for the network of Fig. 20.57.
Ch. 20 - For the network of Fig. 20.58: a. Find the average...Ch. 20 - An electrical system is rated 10 kVA, 200 V at a...Ch. 20 - An electrical system is rated 5 kVA, 120 V, at a...Ch. 20 - For the system of Fig. 20.59: a. Find the total...Ch. 20 - Repeat Problem 14 for the system of Fig. 20.60.Ch. 20 - For the circuit of Fig. 20.61: Find the total...Ch. 20 - For the circuit of Fig. 20.62: Find the total...Ch. 20 - Prob. 18PCh. 20 - The load on a 120 V, 60 Hz supply is 5 kW...Ch. 20 - The loading of a factory on a 1000 V, 60 Hz system...Ch. 20 - a. A wattmeter is connected with its current coil...Ch. 20 - The voltage source in Fig. 20.64 delivers 660 VA...Ch. 20 - a. An air-core coil is connected to a 200 V, 60 Hz...Ch. 20 - a. The inductance of an air-core coil is 0.08 H....Ch. 20 - Using PSpice or Multisim, obtain a plot of...
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