POWER SYSTEM ANALYSIS+DESIGN-EBK >I<
6th Edition
ISBN: 9781337259170
Author: Glover
Publisher: INTER CENG
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Chapter 4, Problem 4.34MCQ
To determine
The method by which the effect of earth plane is considered with a perfectly conducting earth plane and considering the lines with neutral conductors and earth return.
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Find the geometric mean radius of a conductor in terms of the radius r for the following figure.
[3]
If a voltage is being induced into a conductor by electromagnetic induction, reversing the direction of motion of the conductor will _____.
Select one:
A.
NOT CHANGE ANYTHING
B.
DOUBLE THE INDUCED VOLTAGE
C.
REVERSE THE POLARITY OF THE INDUCED VOLTAGE
D.
HALVE THE INDUCED VOLTAGE
Q2. What is the benefit of using stranded conductors in transmission systems?
Chapter 4 Solutions
POWER SYSTEM ANALYSIS+DESIGN-EBK >I<
Ch. 4 - ACSR stands for Aluminum-clad steel conductor...Ch. 4 - Overhead transmission-line conductors are bare...Ch. 4 - Alumoweld is an aluminum-clad steel conductor....Ch. 4 - EHV lines often have more than one conductor per...Ch. 4 - Shield wires located above the phase conductors...Ch. 4 - Conductor spacings, types, and sizes do have an...Ch. 4 - A circle with diameter Din.=1000Dmil=dmil has an...Ch. 4 - An ac resistance is higher than a dc resistance....Ch. 4 - Prob. 4.9MCQCh. 4 - Transmission line conductance is usually neglected...
Ch. 4 - Prob. 4.11MCQCh. 4 - Prob. 4.12MCQCh. 4 - For a single-phase, two-wire line consisting of...Ch. 4 - For a three-phase three-wire line consisting of...Ch. 4 - For a balanced three-phase positive-sequence...Ch. 4 - A stranded conductor is an example of a composite...Ch. 4 - lnAk=lnAk True FalseCh. 4 - Prob. 4.18MCQCh. 4 - Expand 6k=13m=12Dkm.Ch. 4 - Prob. 4.20MCQCh. 4 - For a single-phase two-conductor line with...Ch. 4 - In a three-phase line, in order to avoid unequal...Ch. 4 - For a completely transposed three-phase line...Ch. 4 - Prob. 4.24MCQCh. 4 - Does bundling reduce the series reactance of the...Ch. 4 - Does r=e14r=0.788r, which comes in calculation of...Ch. 4 - In terms of line-to-line capacitance, the...Ch. 4 - For either single-phase two-wire line or balanced...Ch. 4 - Prob. 4.29MCQCh. 4 - Prob. 4.30MCQCh. 4 - Prob. 4.31MCQCh. 4 - Prob. 4.32MCQCh. 4 - Prob. 4.33MCQCh. 4 - Prob. 4.34MCQCh. 4 - The affect of the earth plane is to slightly...Ch. 4 - When the electric field strength at a conductor...Ch. 4 - Prob. 4.37MCQCh. 4 - Prob. 4.38MCQCh. 4 - Considering two parallel three-phase circuits that...Ch. 4 - The Aluminum Electrical Conductor Handbook lists a...Ch. 4 - The temperature dependence of resistance is also...Ch. 4 - A transmission-line cable with a length of 2 km...Ch. 4 - One thousand circular mils or 1 kcmil is sometimes...Ch. 4 - A 60-Hz, 765-kV, three-phase overhead transmission...Ch. 4 - A three-phase overhead transmission line is...Ch. 4 - If the per-phase line loss in a 70-km-long...Ch. 4 - A 60-Hz, single-phase two-wire overhead line has...Ch. 4 - Prob. 4.9PCh. 4 - A 60-Hz, three-phase three-wire overhead line has...Ch. 4 - Prob. 4.11PCh. 4 - Find the inductive reactance per mile of a...Ch. 4 - A single-phase overhead transmission line consists...Ch. 4 - Prob. 4.14PCh. 4 - Find the GMR of a stranded conductor consisting of...Ch. 4 - Prob. 4.16PCh. 4 - Determine the GMR of each of the unconventional...Ch. 4 - A 230-kV, 60-Hz, three-phase completely transposed...Ch. 4 - Prob. 4.19PCh. 4 - Calculate the inductive reactance in /km of a...Ch. 4 - Rework Problem 4.20 if the bundled line has (a)...Ch. 4 - Prob. 4.22PCh. 4 - Prob. 4.23PCh. 4 - Prob. 4.24PCh. 4 - For the overhead line of configuration shown in...Ch. 4 - Prob. 4.26PCh. 4 - Figure 4.34 shows double-circuit conductors'...Ch. 4 - For the case of double-circuit, bundle-conductor...Ch. 4 - Prob. 4.29PCh. 4 - Figure 4.37 shows the conductor configuration of a...Ch. 4 - Prob. 4.32PCh. 4 - Prob. 4.33PCh. 4 - Prob. 4.34PCh. 4 - Prob. 4.35PCh. 4 - Prob. 4.36PCh. 4 - Prob. 4.38PCh. 4 - Calculate the capacitance-to-neutral in F/m and...Ch. 4 - Prob. 4.40PCh. 4 - Prob. 4.41PCh. 4 - Prob. 4.42PCh. 4 - Three ACSR Drake conductors are used for a...Ch. 4 - Consider the line of Problem 4.25. Calculate the...Ch. 4 - Prob. 4.45PCh. 4 - Prob. 4.46PCh. 4 - Prob. 4.47PCh. 4 - The capacitance of a single-circuit, three-phase...Ch. 4 - Prob. 4.49PCh. 4 - Prob. 4.50PCh. 4 - Prob. 4.51PCh. 4 - Approximately how many physical transmission...Ch. 4 - Prob. BCSQCh. 4 - Prob. CCSQCh. 4 - Prob. DCSQ
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- 3.7 A single conductor power cable has a conductor of No. 2 solid copper (radius = 0.328 cm). Paper insulation separating the conductor from the concentric lead sheath has a thickness of 2.5 mm and a relative permittivity of 3.8. The thickness of the lead sheath is 2 mm. Find the capacitive reactance per kilometre between the inner çonductor and the lead sheath.arrow_forwardOn your own understanding, what is solid wire conductor and stranded wire conductor?arrow_forwardTable A.3 lists a 4/0 copper conductor with 12 strands and having a diameter of 0.3373 cm.a) Find the resistivity and dc resistance at 50 degree Celcius by assuming a 2% increase due to spiralling.b) From Table A.3, determine the percent increase in resistance at 60 Hz versus dc.arrow_forward
- Correct statement related to weight of conductor and sag is .............................. Weight of conductor ∝ √(sag) Weight of conductor ∝ (1/sag) Weight of conductor ∝ (sag)^3 Weight of conductor ∝ sagarrow_forward19. What are the benefits of stranded conductors over solid-rod conductors?arrow_forwardQ-1) Compared to a three-wire bundle, a single wire using the same amount of metal per km wouldhave higher losses. Elaborate. Q-2) What is the main objective of transposition in transmission line conductors? Course is power transmissionarrow_forward
- 8. The resistance of a conductor depends only on the cross sectional area of the conductor. True Falsearrow_forward1. Determine the best current density in A/mm’ fora 3-@ overhead line if the line is in use for 2000 hours per year and if the conductor costing Rs 3-0 per kg has a specific resistance of 1-73 Q m and weighs 6200 kg/m’, Cost of energy is 10 Phanit. Interest and depreciation é is 12% of conductor cost. [0-705 A/mm?]arrow_forwardThrough two parallel wires A and B, 10A and 2A of currents are passed respectively in opposite directions. If the wire A is infinitely long and the length of the wire B is 2m, then force on the conductor B, which is situated at 10 mm distance from A, will be ______ N.arrow_forward
- 12. There are 6 conductors in a double circuit line. Each conductor has a radius of 12 mm. The 6conductors are arranged horizontally. The center to center distance between the conductor is 2m. The sequence of conductors are from left to right as follows: a,b.c,a', b', c'. Calculate the inductance per km per phase of system. the a' 2 m 2 m 2 m 2 m 2 marrow_forwardFor the Figure 7 shown: A 251 -mile long, 60 Hz, three-phase, 3-wire, transmission line is composed of stranded conductors in each line with GMR of 0.3888 -inch. If the distance D in the figure is 7 ft., What is inductive reactance per line in (ohm)? Figure 7 ³0 1.8D 2.4D 3.2Darrow_forwardSubject: Electrical & Electronics Engineering Course: Power Electronics Question: What is ‘Stranded conductor’? What are the benefits of stranded conductor over regular conductor?arrow_forward
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