A 400 km overhead transmission line delivers a load of 100 MVA at 132 kV, 60 Hz and 0.8 pf lagging. Resistance of the line is 35.5 2, reactance is 72.5 2 and admittance due to the charging capacitance is 0.551x 10-3 mho. If the transmission line in above Problem becomes lose less, then calculate; a) Line phase constant ß b) Surge impedance c) Velocity of propagation

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
Chapter2: Fundamentals
Section: Chapter Questions
Problem 2.31P: Consider two interconnected voltage sources connected by a line of impedance Z=jX, as shown in...
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A 400 km overhead transmission line delivers a load of 100 MVA at 132 kV, 60 Hz and 0.8 pf lagging.
Resistance of the line is 35.5 2, reactance is 72.5 2 and admittance due to the charging capacitance is
0.551x 10-3 mho.
If the transmission line in above Problem becomes lose less, then calculate;
a) Line phase constant ß
b) Surge impedance
c) Velocity of propagation
d) Line wavelength
Transcribed Image Text:A 400 km overhead transmission line delivers a load of 100 MVA at 132 kV, 60 Hz and 0.8 pf lagging. Resistance of the line is 35.5 2, reactance is 72.5 2 and admittance due to the charging capacitance is 0.551x 10-3 mho. If the transmission line in above Problem becomes lose less, then calculate; a) Line phase constant ß b) Surge impedance c) Velocity of propagation d) Line wavelength
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