nav emailalert searchbtn searchbox tablepage yinyongbenwen piczone journalimg journalInfo journalinfonormal searchdiv searchzone qikanlogo popupnotification paper paperNew
2023, 01, 61-65
220kV氧化锌避雷器受潮故障诊断分析及处理
基金项目(Foundation): 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司青年科技人员支持计划项目“氧化锌避雷器现场精测带电测试技术研究”(2021-QK-06)
邮箱(Email):
DOI: 10.19929/j.cnki.nmgdljs.2023.0011
摘要:

针对氧化锌避雷器长期运行可能出现的发热、绝缘能力下降等缺陷,以某220 kV变电站测温巡检过程中发现的氧化锌避雷器红外测温与全电流在线数据异常现象为例进行分析。通过氧化锌避雷器带电试验与停电试验初步确定避雷器内部电阻片劣化,存在绝缘故障隐患。进一步解体分析发现,避雷器密封胶圈老化,密封效果丧失,导致避雷器氧化锌阀片受潮,自身非线性伏安特性丧失。对此,提出了加强对同类设备的运行维护等预防措施,以及金属氧化物避雷器带电联合监测的方法,为避雷器异常运行数据分析提供借鉴。

Abstract:

In view of the defects of zinc oxide arrester such as heating and the decrease of insulation ability which may occur in long-term operation, the abnormal phenomenon of infrared temperature measurement and full current online data of zinc oxide arrester found during temperature inspection of a 220 kV substation is analyzed as an example. Through the zinc oxide arrester live test and power failure test, it is preliminarily determined that the internal resistance sheet of arrester is deteriorated and there is hidden danger of insulation failure. The further disintegration analysis shows that the sealing rubber ring of the arrester is aging and the sealing effect is lost, which leads to the dampness of the zinc oxide valve plate of the arrester and the nonlinear volt-ampere characteristics are lost. In this paper, preventive measures such as strengthening operation and maintenance of similar equipment, and joint live monitoring method of metal oxide arrester are put forward, which can provide reference for analyzing abnormal operation data of arrester.

参考文献

[1] 律方成,张启哲,王胜辉,等.动车组车顶避雷器内部缺陷的解体试验研究[J].华北电力大学学报(自然科学版),2022,49(3):67-74. LYU Fangcheng, ZHANG Qizhe, WANG Shenghui, et al. Experimental Study on Disassembly of EMU Roof Arrester with Internal Defects[J]. Journal of North China Electric Power University, 2022, 49(3): 67-74.

[2] 谭佳雨.基于电气及介电特性的金属氧化物避雷器老化受潮状态分析[D].重庆:重庆大学,2019.

[3] 尚京城.氧化锌避雷器的老化机理与状态评价研究[D].大连:大连理工大学,2018.

[4] 王晓军.发电厂直配线路防雷保护措施的研究[J].机电工程技术, 2019,48(5):218-220. WANG Xiaojun. Study on Lightning Protection Measures of Power Plant Direct Distribution Line[J]. Mechanical & Electrical Engineering Technology, 2019, 48(5): 218-220.

[5] 律方成,张启哲,王胜辉,等.动车组车顶避雷器温度分布测量及缺陷仿真研究[J].电网技术,2022,46(3):1223-1231. LYU Fangcheng, ZHANG Qizhe, WANG Shenghui, et al. Experimental Study on Disassembly of EMU Roof Arrester with Internal Defects[J]. Power System Techology, 2022, 46(3): 1223-1231.

[6] 任大江,叶海鹏,李建萍,等.一起500 kV金属氧化锌避雷器故障原因分析[J].电瓷避雷器,2020(3):127-132. REN Dajiang, YE Haipeng, LI Jianping, et al. Analysis of the Causes of a 500 kV Metal Zinc Oxide Arrester Fault[J]. Insulators and Surge Arresters, 2020(3): 127-132.

[7] 潘院鹏.一起避雷器发热缺陷处理及分析[J].电气开关,2021,59(5):83-86. PAN Yuanpeng. Treatment and Analysis for a Lightning Arrester Heating Defect[J]. Electric Switcher, 2021, 59(5): 83-86.

[8] 刘昌标,谢斯晗,丁凯,等.一起500 kV避雷器内部受潮故障特征与诊断分析[J].电工电气,2022(5):45-48. LIU Changbiao, XIE Sihan, DING Kai, et al. The Internal Damp Fault Characteristics and Diagnosis Analysis of a 500 kV Lightning Arrester[J]. Electrotechnics Electric, 2022(5): 45-48.

[9] 李聪.10 kV架空配电线路带电更换避雷器技术研究[J].机电工程技术,2018,47(10):80-83. LI Cong. Research on the Technology of Changing the Arrester for 10 kV Overhead Power Distribution Line[J]. Mechanical & Electrical Engineering Technology, 2018, 47(10): 80-83.

[10] Zhang D, Huang H, Zhao X, et al. Failure Analysis of Metal Oxide Surge Arrester on Busbar of 220 kV Substation[J]. IOP Conference Series: Earth and Environmental Science, 2021, 651(2): 11-14.

[11] 王清波,段永生,方勇,等.交流泄漏电流带电测试对MOA不同绝缘部件的故障检出效果差异研究[J].电瓷避雷器,2022(3):19-25. WANG Qingbo, DUAN Yongsheng, FANG Yong, et al. Difference of Fault Detection Effect of AC Leakage Current Live Test Technology in Different Insulating Parts of MOA[J]. Insulators and Surge Arresters, 2022(3): 19-25.

[12] 国家能源局.现场绝缘试验导则避雷器试验:DL/T 474.5—2018[S].北京:中国电力出版社,2018.

[13] 杜修明,童涛,龙国华,等.一起500 kV避雷器故障原因分析[J]. 电瓷避雷器,2022(3):61-67. DU Xiuming, TONG Tao, LONG Guohua, et al. Failure Cause a 500 kV Lightning Surge Arrester[J]. Insulators and Surge Arresters, 2022(3): 61-67.

[14] 孙林涛,艾云飞,张翾喆,等.一起金属氧化物避雷器异常状态诊断与分析[J].浙江电力,2019,38(8):43-46. SUN Lintao, AI Yunfei, ZHANG Xuanzhe, et al. Diagnosis and Analysis of a MOA Abnormality[J]. Zhejiang Electric Power, 2019, 38(8): 43-46.

[15] 岳刚.一起避雷器阻性电流试验分析[J].云南电力技术,2021,49(3):39-41,49. YUE Gang. A lightning arrester resistance current test analysis[J]. Yunnan Electric Power, 2021, 49(3): 39-41, 49.

[16] 田晓云,范永强,艾博,等.500 kV线路金属氧化物避雷器缺陷分析及处理[J].内蒙古电力技术,2021,39(1):98-100. TIAN Xiaoyun, FAN Yongqiang, AI Bo, et al. Analysis and Treatment of 500 kV Metal Oxide Arrester Defects[J]. Inner Mongolia Electric Power, 2021, 39(1): 98-100.

[17] 方逸越,方文田,李涛,等.基于改进隐马尔可夫模型的金属氧化物避雷器劣化监测方法[J].浙江电力,2022,41(6):69-75. FANG Yiyue, FANG Wentian, LI Tao, et al. An MOA Deterioration Monitoring Method Based on an Improved HMM[J]. Zhejiang Electric Power, 2022, 41(6): 69-75.

[18] 刘大源.火力发电厂220 kV氧化锌避雷器阻性电流过高问题研究[J].电工技术,2022(6):176-178,182. LIU Dayuan. Research on the Over-High Resistive Current of 220 kV Zinc Oxide Surge Arresters in Thermal Power Plants [J]. Electric Engineering, 2022(6): 176-178, 182.

[19] 徐鹏.220 kV氧化锌避雷器泄漏电流异常现象分析及对策[J].电瓷避雷器,2021(5):36-40. XU Peng. Analysis and Countermeasures of the Abnormal Leakage Current of 220 kV Zinc Oxide Arrester[J]. Insulators and Surge Arresters, 2021(5): 36-40.

[20] 国家能源局.电力设备预防性试验规程:DL/T 596—2021[S].北京:中国电力出版社,2021.

[21] 内蒙古电力(集团)有限责任公司.输变电设备状态检修试验规程:Q/ND 1050106—2018[S].呼和浩特:内蒙古电力(集团)有限责任公司,2018.

[22] 国家标准化管理委员会.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.

[23] 国家能源局.防止电力生产事故的二十五项重点要求:国能安全161号[Z].北京:国家能源局,2014.

基本信息:

DOI:10.19929/j.cnki.nmgdljs.2023.0011

引用信息:

[1]王磊,赵子建,白洁,等.220kV氧化锌避雷器受潮故障诊断分析及处理[J].内蒙古电力技术,2023(01):61-65.DOI:10.19929/j.cnki.nmgdljs.2023.0011.

基金信息:

内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司青年科技人员支持计划项目“氧化锌避雷器现场精测带电测试技术研究”(2021-QK-06)

检 索 高级检索