六氟化硫密度继电器监测失效自动识别技术研究  

Research on Automatic Failure Identification Technology of Sulfur Hexafluoride Density Relay

作　　者：刘平 张驰 张莹 石剑波 贾召 丁五行 LIU Ping;ZHANG Chi;ZHANG Ying;SHI Jianbo;JIA Zhao;DING Wuxing(State Grid Hubei Electric Power Co.,Ltd.,Wuhan Hubei 430077,China;State Grid Hubei Electric Power Research Institute,Wuhan Hubei 430077,China;Henan Relations Co.,Ltd.,Zhengzhou Henan 450001,China;T&P Union(Beijing)Co.,Ltd.,Beijing 100096,China)

机构地区：[1]国网湖北省电力有限公司,湖北武汉430077 [2]国网湖北省电力有限公司电力科学研究院,湖北武汉430077 [3]河南省日立信股份有限公司,河南郑州450001 [4]泰普联合科技开发(北京)有限公司,北京100096

出　　处：《湖北电力》2024年第4期42-48,共7页Hubei Electric Power

基　　金：国家电网公司总部科技项目(项目编号:5200-202222102A-1-1-ZN)。

摘　　要：针对六氟化硫密度继电器监测失效问题,研究了六氟化硫密度继电器在线监测失效自动识别技术。监测功能故障识别方法采用Beattie-Bridgman状态经验方程,结合温度-压力曲线的相关系数,通过对比相关系数与相关系数阈值,实现SF6气体密度继电器发生故障准确识别。监测值漂移识别通过饱和蒸气压理论值与实际饱和蒸气压差值与设定阈值对比,判定六氟化硫密度继电器发生漂移,通过实验验证了该方法的准确性。Aiming at the monitoring failure of sulfur hexafluoride density relay,this paper makes studies on the automatic identification technology of sulfur hexafluoride density relay for on-line monitoring failure.The fault identification method of monitoring function adopts Beattie-Bridgman state empirical equation,and combines with the correlation coefficient of the temperature-pressure curve to achieve accurate fault identification of SF6 gas density relay by co MParing the correlation coefficient with the correlation coefficient threshold.By co MParing the theoretical saturated vapor pressure value with the actual saturated vapor pressure difference value and the set threshold value,

关 键 词：六氟化硫 继电器 饱和蒸气压 温度-压力曲线 

分 类 号：TM58[电气工程—电器]