1. A 69-kV (L-L), three-phase short transmission line is 16 km long. The line has a per phase series impedance of 0.125 + j0.4375 N per km. We want to evaluate the transmission line efficiency when the line delivers 70 MVA, 0.8 lagging power factor at 64 kV. Determine: (a) which is L-N) the sending end voltage, (Note that -the voltage should be expressed as per phase value, (b) the sending end current (c) the voltage regulation

1. A 69-kV (L-L), three-phase short transmission line is 16 km long. The line has a per phase series impedance of 0.125 + j0.4375 N per km. We want to evaluate the transmission line efficiency when the line delivers 70 MVA, 0.8 lagging power factor at 64 kV. Determine: (a) which is L-N) the sending end voltage, (Note that -the voltage should be expressed as per phase value, (b) the sending end current (c) the voltage regulation

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 4.33MCQ

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