A 345 kV transmission line consisting of three conductors has a resistance per unit length of R

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A 345 kV transmission line consisting of three conductors has a resistance per unit length of R′ =R/l = 0.0351/km, and an inductive reactance per unit length of ωL′ = ωL/l = 0.371 Ω/km, as described in §38.4.1. Assess the utility of this line for transmission of three-phase power over a distance of 200 km.Assume that the line delivers (real) power PL =350 MW to a purely resistive load. Estimate the fraction of power lost in transmission and the effect on the power factor of line impedance.

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The Physics of Energy

ISBN: 978-1107016651

1st edition

Authors: Robert L. Jaffe, Washington Taylor

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