开关柜避雷器在线监测系统的应用

On the Application of the On-line Monitoring System for the Lightning Arrester of the Switch Cabinet

高压开关柜是电网中一种主要的设备,可以断开与闭合输电线路,在监测运行电量方面发挥重要意义。尤其到了雨季,常有雷电沿线侵入开关柜,严重影响了设备的绝缘性能。而氧化锌避雷器(MOA)取代了其它种类的避雷器,用来防止雷电或操作产生的过电压,是确保电网正常运行的重要设备,在高压开关柜中被大量应用。基于此,文章阐述了氧化锌避雷器在线监测应用的优势,分析了当前我国氧化锌避雷器在线监测的主要方法,对开关柜避雷器的在线监测系统进行探讨。

High voltage switchgear is one of the main equipment in the power grid.It can disconnect and close the transmission line,and play an important role in monitoring the power of operation.Especially in the rainy season,often along the lightning invasion of switchgear,seriously affecting the insulation performance of the device,while Zinc Oxide arrester(MOA)to replace other types of lightning arrester,to prevent lightning overvoltage or operation,is an important equipment to ensure the normal operation of the power grid,is widely applied in high-voltage switch cabinet.Based on this,this paper expounds the advantages of the on-line monitoring application of Zinc Oxide arresters,analyzes the main methods of online monitoring of Zinc Oxide arresters in China,and probes into the online monitoring system of lightning arresters for switchgear.