Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN: 9781305632134
Author: J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4, Problem 4.3P
A transmission-line cable with a length of 2 km consists of 19 strands of identical copper conductors, each 1.5 mm in diameter. Because of the twist of the strands, the actual length of each conductor is increased by
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
A transmission line cable consists of 19 strands of identical copper conductors, each 1.5 mm in diameter. The length of the cable is 2 km but because of the twist of the strands, the actual length of each conductor is increased by 5 percent. What is resistance of the cable ? Take the resistivity of the copper to be 1.78 ×10^–8 m.
The figure shows a conductor with four
strands, each strand having a radius r.
Compute the GMR in terms of the radius r.
88
the loss in a cable’s dielectric represented by?
a)L
b)G
c)C
d) R
Chapter 4 Solutions
Power System Analysis and Design (MindTap Course List)
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
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- A coaxial cable's shiled diameter is 0.4cm and the inner conductor has a diameter of 0.02cm. What is the characteristic impedance of that cable?arrow_forwardDetermine the resistance of a 1.25 km long cable composed of 14 strands ofsimilar copper wire conductor; each strand is 1.3 mm in diameter. Allow a 5.4% increase in length for the twist of each strand in completed cable. The specific resistance of copper is 1.72 x 10 – 8 Ω-m.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
- What is the capacitance per kilometer per phase of a single circuit, two bundle conductor line with horizontal configuration? The distance between the bundled conductors is 30 cm and the diameter of each conductor is 5cm. The distance between the centers of the bundle is 5mChoices: 0.0132uF/km 0.0126 uF/km 0.0143uf/km 0.0116uF/km Please in typing format pleasearrow_forwardQuestion 3: [ma nau, o a. Derive the total inductance of a single current carrying conductor? b. Determine the inductance per km per phase of a single circuit 460 KV line using two bundle conductors per phase as shown in the figure. The diameter of each conductor is 5 cm. 40cm 6.5m 13m 6.5marrow_forwardA single-core cable working on a 230 kV, 3 phase system, if a dielectric stress of 85 kV/cm can be allowed then Find the most economical size of cable.arrow_forward
- Consider a three-core, three-phase, 50 Hz, 11 kV cable whose conductors are denoted as R, Y and B in the figure. The inter-phase capacitance (C₁) between each pair of conductors is 0.2 µF and the capacitance between each line conductor and the sheath is 0.4 µF. The per-phase charging current is C₂ HE C₁ ,C₁ Outer Sheatharrow_forwardThe figure below shows a ring distributor with interconnector BD. The supply is given at point A. The resistances of go and return conductors of various sections are indicated in the figure, current in the interconnector and voltage drop in the interconnector are: 10 A 0.075 2 B 0.025 2 0.12 0.05 2/ + 30 A 0.01 a 10 A 0.05 2 20 Aarrow_forward5. Pure iron has a resistivity of 10.0 x 10-6 ohm-cm at 20 ° C. The resistivity of copper at this temperature is 1.77 × 10-6 ohm-cm. Consider two different conductors, each 1 meter long and a square straight section 0.8 cm on each side. Conductor A is formed by joining end to end a 50 cm long iron bar with a similar copper rod. Conductor B consists of a copper rod and an iron rod 1 meter long with a 0.4 by 0.8 cm cross section, joined laterally. What is the resistance in ohms of each conductor, between the ends 1 meter apart? If a steady current flows in conductor A, in which material will the power dissipation be greater. Answer the same question for bar B.arrow_forward
- The maximum and minimum stresses in the dielectric of a single-core cable are 40 kV/cm (r.m.s.) and 10 kV/cm (r.m.s.) respec- tively. If the conductor diameter is 2 cm, the insulation thickness isarrow_forwardDetermine the inductance per km per phase of a single circuit 460 KV line using two bundle conductors per phase as shown in the figure. The diameter of each conductor is 5 cm. 40cm 6.5m 6.5m 13marrow_forwardOver string of three phase transmission line has a four insulators and Ce=0.12 C. If the voltage between the steal pin of the first insulator and the metal cap of the third insulator is 33 kv. 1- Find the voltage distribution over the insulator. What will be the string efficiency 2- Ifthe sting is supplied by a guard ring and this lead to add one air capacitance of value 0.2 C. What will be the new distribution over the insulators and what will be the new string efficiency.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Power System Analysis and Design (MindTap Course ...Electrical EngineeringISBN:9781305632134Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. SarmaPublisher:Cengage Learning
Power System Analysis and Design (MindTap Course ...
Electrical Engineering
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:Cengage Learning
Optical fiber cables, how do they work? | ICT #3; Author: Lesics;https://www.youtube.com/watch?v=jZOg39v73c4;License: Standard Youtube License