Delmar's Standard Textbook of Electricity (MindTap Course List)
6th Edition
ISBN: 9781285852706
Author: Stephen L. Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 11, Problem 5RQ
Name five conditions that must be met for running conductors in parallel.
Expert Solution & Answer
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not use ai please
Procedure:-
1- Connect the cct. shown in fig.(2).
a
ADDS DS
Fig.(2)
2-For resistive load, measure le output voltage by using oscilloscope ;then sketch this
wave.
3- Measure the average values ::f VL and IL:
4- Repeat steps 2 & 3 but for RL load.
Report:-
1- Calculate the D.C. output vcl age theoretically and compare it with the test value.
2- Calculate the harmonic cont :nts of the load voltage, and explain how filter
components may be selected.
3- Compare between the three-phase half & full-wave uncontrolled bridge rectifier.
4- Draw the waveform for the c:t. shown in fig.(2) but after replaced Di and D3 by
thyristors with a 30° and a2 = 90°
5- Draw the waveform for the cct. shown in fig.(2) but after replace the 6-diodes by 6-
thyristor.
6- Discuss your results.
Please solve No. 4
and 5
a.) Sketch each of the following signals, and starting with the defining relation, finds its Fourier transform
X (w)
-
a) x(t) = rect(t − 3)
b) x(t)=3t rect(t)
c) x(t) = 2te 3u1(t)
d) x(t) = e−2|t|
b.) Sketch the magnitude and phase spectrum for the four signals in Problem (a).
c) Calculate energy using time-domain and frequency domain formulas for signals in Problem (a) and
(b). Confirm Parseval's theorem using these calculations.
Chapter 11 Solutions
Delmar's Standard Textbook of Electricity (MindTap Course List)
Ch. 11 - What is the maximum temperature rating of Type...Ch. 11 - 2. Name two types of conductor insulation designed...Ch. 11 - A 10 AWG copper conductor with Type THW insulation...Ch. 11 - 4. Six 1/0 aluminum conductors are to be run in a...Ch. 11 - Name five conditions that must be met for running...Ch. 11 - What is the largest solid (nonstranded) conductor...Ch. 11 - Can Type TW cable be used in an area that has an...Ch. 11 - How is the grounded conductor in a flat...Ch. 11 - What three colors are ungrounded conductors not...Ch. 11 - Twenty-five 12 AWG copper conductors are run in...
Ch. 11 - A single-hase load is located 2800 ft from its...Ch. 11 - It is decided to use parallel 0000 conductors to...Ch. 11 - A three-phase motor operates on 480 V and is...Ch. 11 - You have been hired by a company to connect an...Ch. 11 - 2. You are a journeyman electrician in an...Ch. 11 - You are an electrician working in an industrial...Ch. 11 - Using the above example, determine the wire size...Ch. 11 - 1. A 2 AWG copper conductor is 450 ft long. What...Ch. 11 - 2. An 8 AWG conductor is 500 ft long and has a...Ch. 11 - 3. Three 500-kcmil copper conductors with Type RHH...Ch. 11 - 4. Eight 10 AWG aluminum conductors with Type THWN...Ch. 11 - 5. A three-phase motor is connected to 480 V and...Ch. 11 - 6. A 50-hp DC motor is connected to 250 volts. The...Ch. 11 - 7. A bank of electric heaters has a power rating...Ch. 11 - A 15-hp squirrel-cage induction motor is connected...Ch. 11 - Determine the resistance of a 16 AWG copper...Ch. 11 - Determine the ohms-per-mil-foot of an aluminum...
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