Research on Installation Probllem of Overvoltage Online Monitoring Devices on Distribution Lines

摘要

The parameters of lightning are important in the protection of distribution lines, however, the lightning parameters' measurement of lightning location system (LLS) is not accurate for its measuring principle and method, so online overvoltage monitoring devices are applied to measure the parameters. For the effective monitoring of distribution lines by on-line overvoltage monitoring devices and more accurate lightning parameters, a method for evaluating the installation of monitoring devices in engineering is proposed based on the measurement data of LLS in the area where the lines are located. Different influencing factors will be considered to determine the location of overvoltage monitoring devices effectively through quantitative calculation so as to acquire more accurate monitoring data of lightning parameters, which provides data basis for further evaluation of lightning assessment and improvement of distribution lines' lightning protection.