Geometric mean radius of a 3-phase transmission line of 422 kV, 220 km length 22 mm dir. The roughness factor of the conductor is 0.82 and the geometric mean length between phases is 11 m. Air pressure along the line is 720 mm Hg and the temperature is 22 ° C. In this transmission line;
Geometric mean radius of a 3-phase transmission line of 422 kV, 220 km length 22 mm dir. The roughness factor of the conductor is 0.82 and the geometric mean length between phases is 11 m. Air pressure along the line is 720 mm Hg and the temperature is 22 ° C. In this transmission line;
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 4.13P: A single-phase overhead transmission line consists of two solid aluminum conductors having a radius...
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Geometric mean radius of a 3-phase transmission line of 422 kV, 220 km length 22 mm dir. The roughness factor of the conductor is 0.82 and the geometric mean length between phases is 11 m. Air pressure along the line is 720 mm Hg and the temperature is 22 ° C. In this transmission line;
a) - Calculate the corona voltage and the voltage at which ionization begins with impingement particles.
b) - Find the total corona loss in the three phase system for the operating voltage with the Peek formula
c) - Find the total corona loss for 1% increase in operating voltage.
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