The value of inductance per conductor in a three-phase line is time(s) the loop inductance for the single-phase lines.

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter2: Fundamentals
Section: Chapter Questions
Problem 2.13MCQ
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The value of inductance per conductor in a three-phase line is
time(s) the loop inductance for the single-phase lines.
Refer to the following figure; the radius of each conductor is 0.03 m. It is
also known that the spacing between phase conductors is 35 cm and
the distance between the phases (D) is 4 m. Find the value of the
average inductance of three-phase line arranged.
A single-phase transmission line consists of two parallel conductors
one meter apart and 1.25 cm in diameter. The loop inductance per km
of the line is:
Consider an overhead transmission line with 3-phase, 50 Hz balanced
system with conductors located at the vertices of an equilateral
triangle of length D,b = Dac = Doa = 1 m as shown in figure below. The
resistances of the conductors are neglected. The geometric mean
radius (GMR) of each conductor is 0.01 m. Neglecting the effect of
ground, the magnitude of positive sequence reactance in 0/km
(rounded off to three decimal places) is
Deas Dse
a
Dab
Transcribed Image Text:The value of inductance per conductor in a three-phase line is time(s) the loop inductance for the single-phase lines. Refer to the following figure; the radius of each conductor is 0.03 m. It is also known that the spacing between phase conductors is 35 cm and the distance between the phases (D) is 4 m. Find the value of the average inductance of three-phase line arranged. A single-phase transmission line consists of two parallel conductors one meter apart and 1.25 cm in diameter. The loop inductance per km of the line is: Consider an overhead transmission line with 3-phase, 50 Hz balanced system with conductors located at the vertices of an equilateral triangle of length D,b = Dac = Doa = 1 m as shown in figure below. The resistances of the conductors are neglected. The geometric mean radius (GMR) of each conductor is 0.01 m. Neglecting the effect of ground, the magnitude of positive sequence reactance in 0/km (rounded off to three decimal places) is Deas Dse a Dab
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