Abstract
Overhead ground wires and surge arresters have been installed to protect high voltage power distribution lines and apparatus from overvoltages induced by nearby lightning srokes. The effects of surge arresters for protection of high voltage distribution lines against direct lightning strokes have already been investigated using the digital simulation program EMTP. Regarding the protection of low voltage distribution lines from overvolages induced by lightning strokes, experimental analyses, using a scale model line, have been reported.
This paper reports on the comparison between the experimental analyses and EMTP simulation of power distribution lines, including low voltage lines, and the validity of EMTP simulation. Furthermore, this paper analyzes the overvoltages on low voltage power distribution lines against direct lightning strokes to the overhead ground wire using the digital simulation.
