输电线路绝缘子泄漏电流在线监测系统应用分析

Application Analysis of Online Monitoring System for Current Leakage of Transmission Line Insulators

分析输电线路绝缘子发生污闪时泄漏电流的变化特点,详细介绍了由传感系统、检测系统和监控主机等组成的绝缘子泄漏电流在线监测系统及其硬件组成。该系统可以根据绝缘子表面泄漏电流预测污闪电压。在鄂尔多斯地区电网安装该装置后进行了实测数据分析,验证了该装置能够有效监测线路的绝缘子表面泄漏电流,可应用于防污闪工作。

Make an anlysis of the change characteristic, s of the current leakage as the serious accident of transmission line insulator flashover occurs. Make a detailed introduction of the insulator leakage current online monitoring application system, composed of sensing system, detection system and control computer, and its hardware composition. The system can predict the flashover voltage according to the insulator surface of the leakage c, urrent. After the device is installed in the Ordos power grid, make an analysis of the measured data. The analysis results prove that tile validation of the device can be effectively used for insulator surface line leakage current monitoring, and it can be applicated to prevent flashover.