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For a three-phase three-wire line consisting of three solid cylindrical conductors each with radius r and with equal phase spacing D between any two conductors, the inductance in H/m per phase is given by a. 2 × 10-¹In () 4 × 10-7 ln (2) 6 × 10-¹In () where r' = er = 0.778r

For a three-phase three-wire line consisting of three solid cylindrical conductors each with radius r and with equal phase spacing D between any two conductors, the inductance in H/m per phase is given by a. 2 × 10-¹In () 4 × 10-7 ln (2) 6 × 10-¹In () where r' = er = 0.778r

Power System Analysis and Design (MindTap Course List)
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
Chapter4: Transmission Line Parameters
Section: Chapter Questions
Problem 4.36MCQ: When the electric field strength at a conductor surface exceeds the break-down strength of air,...
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For a three-phase three-wire line consisting of three solid cylindrical conductors each with radius r and with equal phase spacing D between any two conductors, the inductance in H/m per phase is given by a. 2 × 10-7In () 4 × 10−7 In () 6 × 10−7 In () where r' = er = 0.778r
Transcribed Image Text:For a three-phase three-wire line consisting of three solid cylindrical conductors each with radius r and with equal phase spacing D between any two conductors, the inductance in H/m per phase is given by a. 2 × 10-7In () 4 × 10−7 In () 6 × 10−7 In () where r' = er = 0.778r
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