Research on lightning trips and protection measures of overhead transmission lines

This paper presents some statistical analysis of lightning trips of overhead transmission lines in Jiangsu power grid and lightning activities across the province from 2005 to 2013 and analyzes the effects of lightning activities, topography, tower structure and insulation configuration and other factors along line corridors on lightning trips. Based on existing lightning protection measures such as reducing the lightning protection angle of transmission lines, increasing the length of composite insulators and long bar porcelain insulator with parallel gaps, this paper proposes lightning protection measures for new and existing overhead transmission lines to provide references for operation and maintenance.