Explanation Given: Three-phase overhead line made up of three phase conductors. The GMR of 336.4kcmil ACSR 26/7 conductor is 0.0244ft. Calculation: The GMR value can be calculated as follows D S = 0.0244 ft D S = ( 0.0244 ft ) ( 1m 3 .28ft ) D S = 0.00743 m The configuration of the conductors can be considered as The expression for inductive reactance / phase / mile of the line employing logarithm having base 10 is x = k log ( D r ′ ) x = x d + x a ................ ( 1 ) Where x d = k log D is the spacing factor of inductive reactance in Ω/mile . x a = k log 1 r ′ is the inductive reactance in Ω/mile when spacing factor is 1 ft. k = 4.657 × 10 − 3 f = 0.2794 at 60 Hz The spacing in between the conductors is not equal. Therefore, D = D e q r ′ = D S The value of phase distances between the conductors is D A B = 16 2 + 40 2 D A B = 43.081 in D B C = 80 in D A C = 16 2 + 40 2 D A C = 43 To determine (b) Inductive reactance per phase in ohm/mi.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN: 9781305632134

Author: J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher: Cengage Learning

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Chapter 4, Problem 4.24P

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(a)

Inductive reactance per phase in ohm/mi.

To determine

(b)

Inductive reactance per phase in ohm/mi.

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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. 4.9MCQ Ch. 4 - Transmission line conductance is usually neglected...

Ch. 4 - Prob. 4.11MCQ Ch. 4 - Prob. 4.12MCQ Ch. 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 False Ch. 4 - Prob. 4.18MCQ Ch. 4 - Expand 6k=13m=12Dkm.Ch. 4 - Prob. 4.20MCQ Ch. 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. 4.24MCQ Ch. 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. 4.29MCQ Ch. 4 - Prob. 4.30MCQ Ch. 4 - Prob. 4.31MCQ Ch. 4 - Prob. 4.32MCQ Ch. 4 - Prob. 4.33MCQ Ch. 4 - Prob. 4.34MCQ Ch. 4 - The affect of the earth plane is to slightly...Ch. 4 - When the electric field strength at a conductor...Ch. 4 - Prob. 4.37MCQ Ch. 4 - Prob. 4.38MCQ Ch. 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. 4.9P Ch. 4 - A 60-Hz, three-phase three-wire overhead line has...Ch. 4 - Prob. 4.11P Ch. 4 - Find the inductive reactance per mile of a...Ch. 4 - A single-phase overhead transmission line consists...Ch. 4 - Prob. 4.14P Ch. 4 - Find the GMR of a stranded conductor consisting of...Ch. 4 - Prob. 4.16P Ch. 4 - Determine the GMR of each of the unconventional...Ch. 4 - A 230-kV, 60-Hz, three-phase completely transposed...Ch. 4 - Prob. 4.19P Ch. 4 - Calculate the inductive reactance in /km of a...Ch. 4 - Rework Problem 4.20 if the bundled line has (a)...Ch. 4 - Prob. 4.22P Ch. 4 - Prob. 4.23P Ch. 4 - Prob. 4.24P Ch. 4 - For the overhead line of configuration shown in...Ch. 4 - Prob. 4.26P Ch. 4 - Figure 4.34 shows double-circuit conductors'...Ch. 4 - For the case of double-circuit, bundle-conductor...Ch. 4 - Prob. 4.29P Ch. 4 - Figure 4.37 shows the conductor configuration of a...Ch. 4 - Prob. 4.32P Ch. 4 - Prob. 4.33P Ch. 4 - Prob. 4.34P Ch. 4 - Prob. 4.35P Ch. 4 - Prob. 4.36P Ch. 4 - Prob. 4.38P Ch. 4 - Calculate the capacitance-to-neutral in F/m and...Ch. 4 - Prob. 4.40P Ch. 4 - Prob. 4.41P Ch. 4 - Prob. 4.42P Ch. 4 - Three ACSR Drake conductors are used for a...Ch. 4 - Consider the line of Problem 4.25. Calculate the...Ch. 4 - Prob. 4.45P Ch. 4 - Prob. 4.46P Ch. 4 - Prob. 4.47P Ch. 4 - The capacitance of a single-circuit, three-phase...Ch. 4 - Prob. 4.49P Ch. 4 - Prob. 4.50P Ch. 4 - Prob. 4.51P Ch. 4 - Approximately how many physical transmission...Ch. 4 - Prob. BCSQ Ch. 4 - Prob. CCSQ Ch. 4 - Prob. DCSQ

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(a) Inductive reactance per phase in ohm/mi.

Solution Summary: The author explains the inductive reactance per phase in ohm/mi. The GMR of 336.4kcmil ACSR 26/7 conductor is 0.0244ft.