基于物联网技术的变电站避雷器早期故障诊断技术研究

本文基于三相电流矢量和3Io、阻性电流增量与避雷器早期故障之间的关系,研究设计避雷器早期故障诊断监测装置.根据监测装置采集的三相电流矢量和3Io与持续电流数据变化幅值的大小,来判断避雷器的工作状态及可能出现的早期故障类型.另外,基于物联网无线通讯技术,将监测的电流数据传输至变电站主站管控平台,平台通过对采集的数据进行分析处理,并以可视化图形界面显示数据的变化,实现对避雷器可能出现的早期故障情况进行评估、分析、和及时告警.

Research on early fault diagnosis of substation lightning arrester based on Internet of things technology

Based on the relationship between three-phase current vector and 3Io,resistive current increment and early fault of arrester,the design of early fault diagnosis and monitoring device for lightning arrester is studied.According to the three-phase current vector and 3Io and the change amplitude of the continuous current data,the working state of the arrester and the possible early fault type can be judged.In addition,based on networking and wireless communication technology,the monitoring data to the current substation master control platform,through the platform for data analysis and processing,and the change of the data displayed in the graphical user interface,realize the early faults of arrester were analyzed and evaluated,and timely alarm.