A three-phase line at 60 Hz is 300 miles long. The voltage at the transmitting end is 230 kV. The parameters of the line are R= 0.2 Ω /mi, x=0.6Ω/mi y=5.5 µS/mi. a) Show the equivalent pi-diagram with all its values considering the line without losses. losses. Present the values of intermediate calculations. b) Determine the ratio of maximum power to CIL if the line operates at 230 KV.

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 three-phase line at 60 Hz is 300 miles long. The voltage at the transmitting end is 230 kV. The parameters of the line are R= 0.2 Ω /mi, x=0.6Ω/mi y=5.5 µS/mi. a) Show the equivalent pi-diagram with all its values considering the line without losses. losses. Present the values of intermediate calculations. b) Determine the ratio of maximum power to CIL if the line operates at 230 KV.
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