A 60 Hz, three-phase transmission line is 100 miles long. It has a total series impedance of {35 + j120) n and a shunt admittance of j930 μsiemen. It delivers 40 MW at 220 kV with 90% lagging power factor. Find the voltage at the sending end by: (a) short line approximation (b) the nominal rr approximation (c) the nominal T approximation Also determine the voltage regulation for the given line and the power loss. Assume the sending end voltage remains constant.

A 60 Hz, three-phase transmission line is 100 miles long. It has a total series impedance of {35 + j120) n and a shunt admittance of j930 μsiemen. It delivers 40 MW at 220 kV with 90% lagging power factor. Find the voltage at the sending end by: (a) short line approximation (b) the nominal rr approximation (c) the nominal T approximation Also determine the voltage regulation for the given line and the power loss. Assume the sending end voltage remains constant.

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 5.1P: A 30-km, 34.5-kV, 60-Hz, three-phase line has a positive-sequence series impedance z=0.19+j0.34/km....

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