Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 10, Problem 12RQ
It is decided to use parallel 0000 conductors to supply the load in Question 11. How many 0000 conductors will be needed?
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Q2. The single-line diagram of a simple three-bus power system
is shown in Figure-2. Each generator is represented by an emf
behind the sub-transient reactance. All impedances are
expressed in per unit on a common MVA base. All resistances
and shunt capacitances are neglected. The generators are
operating on no load at their rated voltage with their emfs in
phase. A three-phase fault occurs at bus 3 through a fault
impedance of Zf = j0.19 per unit.
(i) Using Th'evenin's theorem, obtain the impedance to the
point of fault and the fault current in
(ii) Determine the bus voltages
per
unit.
) j0.05
j0.075
j0.75
2
j0.30
j0.45
Figure-2: Single line diagram of the
power system network for Q2
3
Chapter 10 Solutions
Delmar's Standard Textbook Of Electricity
Ch. 10 - What is the maximum temperature rating of Type...Ch. 10 - 2. Name two types of conductor insulation designed...Ch. 10 - A 10 AWG copper conductor with Type THW insulation...Ch. 10 - 4. Six 1/0 aluminum conductors are to be run in a...Ch. 10 - Name five conditions that must be met for running...Ch. 10 - What is the largest solid (nonstranded) conductor...Ch. 10 - Can Type TW cable be used in an area that has an...Ch. 10 - How is the grounded conductor in a flat...Ch. 10 - What three colors are ungrounded conductors not...Ch. 10 - Twenty-five 12 AWG copper conductors are run in...
Ch. 10 - A single-hase load is located 2800 ft from its...Ch. 10 - It is decided to use parallel 0000 conductors to...Ch. 10 - A three-phase motor operates on 480 V and is...Ch. 10 - You have been hired by a company to connect an...Ch. 10 - 2. You are a journeyman electrician in an...Ch. 10 - You are an electrician working in an industrial...Ch. 10 - Using the above example, determine the wire size...Ch. 10 - 1. A 2 AWG copper conductor is 450 ft long. What...Ch. 10 - 2. An 8 AWG conductor is 500 ft long and has a...Ch. 10 - 3. Three 500-kcmil copper conductors with Type RHH...Ch. 10 - 4. Eight 10 AWG aluminum conductors with Type THWN...Ch. 10 - 5. A three-phase motor is connected to 480 V and...Ch. 10 - 6. A 50-hp DC motor is connected to 250 volts. The...Ch. 10 - 7. A bank of electric heaters has a power rating...Ch. 10 - A 15-hp squirrel-cage induction motor is connected...Ch. 10 - Determine the resistance of a 16 AWG copper...Ch. 10 - Determine the ohms-per-mil-foot of an aluminum...
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