A 230-kV, three-phase transmission line has a per phase series impedance of z = 0.05 + j0.45 Ω per Km and a per phase shunt admittance of y = j3/4 × 10−6 siemens per km. The line is 80 km long. Using the medium length model, determine the transmission line ABCD constant, the sending end voltage and current,

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
Chapter5: Transmission Lines: Steady-state Operation
Section: Chapter Questions
Problem 5.11P: A 40-km, 220-kV, 60-Hz, three-phase overhead transmission line has a per-phase resistance of...
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A 230-kV, three-phase transmission line has a per phase series impedance of z = 0.05 + j0.45 Ω per Km and a per phase shunt admittance of y = j3/4 × 10−6 siemens per km. The line is 80 km long. Using the medium length model, determine the transmission line ABCD constant, the sending end voltage and current,  the voltage regulation, the sending end power and  the transmission efficiency when the line delivers 200 MVA, 0.8 lagging power factor at 220 kV

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