输电线路绝缘子污秽在线监测系统的设计与实现

在阐述泄漏电流监测原理的基础上,设计了一种输电线路绝缘子污秽在线监测系统。该系统通过数据监测分机,采用自适应噪声对消原理,实时在线检测输电线路绝缘子表面的泄漏电流和环境温、湿度等数据,采用无线通讯技术将数据传输到远程系统主机上,主机通过专家系统分析,得出绝缘子的污秽状况,当污秽过度时及时告警处理,减少了输电线路污闪的几率,提高了供电系统的可靠性。

Design and realization of transmission line''s online monitoring system for insulator contamination

On the base of expounding the monitoring principle of leakage current,a contamination leakage current online monitoring system for transmission line is introduced in this paper. This system measures the data of leakage current on the surface of insulator and temperature and humidity of environment online through the data acquisition unit based on the theory of the adaptive noise cancellation. The data is transmitted to supervision system by wireless communication,and analyzed by expert system. When the contamination of insulator is serious,the system will give alarm signal in time. Thus the probability of flashover in transmission line decreases and the reliability of power supply system can be improved.