Effect of Earth on Capacitance of Transmission Line power system analysis free lecture pdf download
The capacitance of transmission line is influenced by the appearance of earth . As a result of earth , electric field of a line is lowered . When we think that the earth is a perfect conductor by means of a horizontal plane of infinite extent , we recognize that the electric field of charged conductors above the earth is totally different from it may be if the equipotential surface of earth were not present . The effect of earth is observed on both single phase and three phase line .