A single phase line has two parallel conductors 2 metres apart. The diameter of each conductor is 1·2 cm. Calculate the loop inductance per km of the line.


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All Questions › Category: Transmission And Distribution System › A single phase line has two parallel conductors 2 metres apart. The diameter of each conductor is 1·2 cm. Calculate the loop inductance per km of the line.
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Chetan Shidling Staff asked 6 years ago

I need short information.

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Chetan Shidling Staff answered 6 years ago

Spacing of conductors, d = 2 m = 200 cm
Radius of conductor, r = 1·2/2 = 0·6 cm
Loop inductance per metre length of the line
= 10
−7 (1 + 4 loge d/r) H
= 10
−7 (1 + 4 loge 200/0·6) H
= 24·23 × 10
−7 H
Loop inductance per km of the line
=24·23 × 10
−7 × 1000 = 24·23 × 10
−4 H = 2·423 mH