A 275kV, 50HZ three-phase transmission line is 110 km long. The line is supplying a three-phase load of 280MVA at 0.85 pf lagging at 275kV. The line comprises the following characteristics per-phase, resistance 0.0350/km, inductance 0.85mH/km and capacitance 0.0112 pF/km. i. Calculate the sending end voltage based on ABCD constant of the transmission line (T- network). ii. Determine 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
Chapter5: Transmission Lines: Steady-state Operation
Section: Chapter Questions
Problem 5.25P
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A 275kV, 50HZ three-phase transmission line is 110 km long. The line is supplying a three-phase load
of 280MVA at 0.85 pf lagging at 275kV. The line comprises the following characteristics per-phase,
resistance 0.0350/km, inductance 0.85mH/km and capacitance 0.0112 pF/km.
i.
Calculate the sending end voltage based on ABCD constant of the transmission line (T-
network).
ii.
Determine the voltage regulation.
Transcribed Image Text:A 275kV, 50HZ three-phase transmission line is 110 km long. The line is supplying a three-phase load of 280MVA at 0.85 pf lagging at 275kV. The line comprises the following characteristics per-phase, resistance 0.0350/km, inductance 0.85mH/km and capacitance 0.0112 pF/km. i. Calculate the sending end voltage based on ABCD constant of the transmission line (T- network). ii. Determine the voltage regulation.
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