GIS氧化锌避雷器异响原因分析及处理
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摘要
对避雷器进行阻性电流测试、SF_6气体成分分析、X射线检查、超声波检查及返厂拆解检查,确定避雷器异响是由于外部振动引起了避雷器内部芯体的非刚性绝缘部件振动摩擦发出。通过制定有效的整改措施,整改后避雷器未再发出异常响声。该次避雷器异响的处理经验,为今后类似异常的处理分析提供借鉴与参考。
The abnormal noise of a 110 kV zinc oxide arrester is analyzed. The arrester is tested for resistive current, SF6 gas composition analysis, X-ray examination, ultrasonic inspection and disassembly inspection. It is determined that the abnormal noise of the arrester is caused by the vibration and friction of the non-rigid insulating parts of the inner core of the arrester due to the external vibration. Through the formulation of effective rectification measures, the lightning arrester no longer issued abnormal noise. The experience of dealing with the abnormal noise of the arrester provides a reference for the analysis of similar anomalies in the future.
The abnormal noise of a 110 kV zinc oxide arrester is analyzed. The arrester is tested for resistive current, SF6 gas composition analysis, X-ray examination, ultrasonic inspection and disassembly inspection. It is determined that the abnormal noise of the arrester is caused by the vibration and friction of the non-rigid insulating parts of the inner core of the arrester due to the external vibration. Through the formulation of effective rectification measures, the lightning arrester no longer issued abnormal noise. The experience of dealing with the abnormal noise of the arrester provides a reference for the analysis of similar anomalies in the future.
引文
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[2]王静君,李文书,杜积贵.氧化锌避雷器带电测试方法应用分析[J].江苏电机工程,2013,32(2):57-59.
[3]吴德贯,周禹,余忠田,等.一起500 kV金属氧化物避雷器故障分析[J].电瓷避雷器,2013(3):58-60.
[4]李华斌.GIS电压互感器振动的在线检测与诊断[J].机电工程技术,2012,41(7):247-249.
[5]雷红才,叶会生,刘卫东.一起500 kV避雷器的家族缺陷分析及处理[J].电瓷避雷器,2015(4):133-136.
[6]交流无间隙金属氧化物避雷器:GB 11032-2010[S].北京:中国标准出版社,2010:17-44.
[7]马勇,刘洋,陈大兵,等.一起氧化锌避雷器故障原因分析与思考[J].高压电器,2014,50(11):139-144.
[8]王彤,李怡,陈林,等.金属氧化物避雷器故障类型比较研究及事故分析[J].绝缘材料,2015,48(9):47-52.
[9]柳菲,王国亮,孙璐.GIS异响的振动信号特性[J].电子技术与软件工程,2015(12):137-137.
[10]李凯,许洪华,陈冰冰,等.GIS振动机理及固有频率研究[J].电测与仪表,2017,54(3):14-18.
[11]高阳,于杰承,吴伟晴.GIS异响的振动信号检测方法研究综述[J].山东工业技术,2017(3):251-251.
[12]郝金鹏.外壳振动信号在GIS故障诊断中的应用研究[D].北京:华北电力大学,2016.