1. A 230-kV, three-phase transmission line has a per phase series impedance of z = 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, we want to evaluate the transmission line efficiency when the line delivers 200 MVA, 0.8 lagging power factor at 220 kV. Determine 0.05+ j0.45 N per Km (a) the transmission line ABCD constants. (b) the sending end voltage and current, (c) the voltage regulation, (d) the sending end power

1. A 230-kV, three-phase transmission line has a per phase series impedance of z = 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, we want to evaluate the transmission line efficiency when the line delivers 200 MVA, 0.8 lagging power factor at 220 kV. Determine 0.05+ j0.45 N per Km (a) the transmission line ABCD constants. (b) the sending end voltage and current, (c) the voltage regulation, (d) the sending end power

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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