500kV金属氧化物避雷器安装缺陷的试验及分析
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摘要
针对一起500kV金属氧化物避雷器电压致热型缺陷开展综合试验和研究分析。通过解体试验发现避雷器上节和中节安装顺序错误,使得运行中避雷器电位分布不均匀系数增加,上节避雷器电阻片功率损耗及荷电率增加引起发热,与分析结论保持一致。此外,针对该避雷器发热异常的试验分析方法,还进行了适用性分析并提出了防治措施。
This paper introduces the comprehensive test and analysis for voltage heating defect of 500kV metal oxide arrester. Through the disassembly test,it is found that the installation sequence of upper and middle sections is wrong,which makes the non-uniformity of potential distribution of metal oxide arrester in operation increase and the withstand voltage of upper section increase. Therefore,the increasing of power loss and chargeability of valves causes the heating of upper section,which is consistent with the analysis conclusion. In addition,in view of the test analysis method of this abnormal metal oxide arrester,the applicability analysis is carried out and the prevention measure is present.
This paper introduces the comprehensive test and analysis for voltage heating defect of 500kV metal oxide arrester. Through the disassembly test,it is found that the installation sequence of upper and middle sections is wrong,which makes the non-uniformity of potential distribution of metal oxide arrester in operation increase and the withstand voltage of upper section increase. Therefore,the increasing of power loss and chargeability of valves causes the heating of upper section,which is consistent with the analysis conclusion. In addition,in view of the test analysis method of this abnormal metal oxide arrester,the applicability analysis is carried out and the prevention measure is present.
引文
[1]路彦峰.氧化锌避雷器电位分布数值计算研究[D].西安:西安电子科技大学,2007.
[2]胡德恒,严璋,谈克雄,等.电力设备状态检测与故障诊断技术[M].北京:中国电力出版社,2009.
[3]罗容波,王岩,李国伟.带电检测技术在避雷器状态诊断中的成功应用[J].电瓷避雷器,2011(6):53-57.LUO Rongbo,WANG Yan,LI Guowei. A successful application of the live detection technology in the diagnosis of lightning arrester state[J]. Insulators and Surge Arresters,2011,43(6):53-57.
[4]赵汝国,王宝利,冯新岩.红外测温技术诊断氧化锌避雷器安装缺陷[J].高电压技术,2006,32(3):118-119.ZHAO Ruguo,WANG Baoli,FENG Xinyan. Example of defect of the metal-oxide arrestor installation detected by the infrared detection[J]. High Voltage Engineering,2006,32(3):118-119.
[5]汤成艳.基于红外热像的金属氧化锌避雷器故障检测技术研究[D].长沙:湖南大学,2016.
[6]国家能源局.带电设备红外诊断应用规范:DL/T664—2016[S].北京:中国电力出版社,2016.
[7]刘振莉,郭洁,金青,等.交流Zn O电阻片小电流区阻性、容性电流与电压关系研究[J].电瓷避雷器,2012(5):70-73.LIU Zhenli,GUO Jie,JIN Qing,et al. Research on the relationship between the voltage and the resistive current,capacitive current in low current of MOV[J]. Insulators and Surge Arresters,2012(5):70-73.
[8]梁毓锦.金属氧化物非线性电阻在电力系统中的应用[M].电力出版社,1997.
[9]刘国特,江栩铄,叶茂泉,等.基于有限元的无间隙氧化锌避雷器电阻片电位分布计算与影响因素分析[J].智能电网,2016(1):75-79.LIU Guote,JIANG Xushuo,YE Maoquan,et al. Finite element method based calculation of varistor potential distribution for gapless Zinc oxide arrester and influence factors analysis[J]. Smart Grid,2016(1):75-79.
[10]王保山,刘斌,张曦,等.交流特高压避雷器电压分布的测量与分析[J].高电压技术,2008,34(9):1781-1787.WANG Baoshan,LIU Bin,ZHANG Xi,et al. Measurement and analysis about the potential distribution of the1000 k V metal-oxide surge arrester[J]. High Voltage Engineering,2008,34(9):1781-1787.
[11]吴亮.避雷器电位分布测试方法研究[J].电瓷避雷器,2015,47(3):110-114.WU Liang. Study on the potential distribution testing method for arresters[J]. Insulators and Surge Arresters,2015,47(3):110-114.
[12]李庆玲.氧化锌避雷器运行状况研究[D].兰州:兰州理工大学,2008.
[13]电力工业部.电力设备预防性试验规程:DL/T596—1996[S].北京:中国电力出版社,1997.
[14]周多军.浅议无间隙金属氧化物避雷器不拆引线的测试方法[J].电瓷避雷器,2008(3):42-46.ZHOU Duojun. Method of gapless MOA test without removing connecting Lead[J]. Insulators and Surge Arresters,2008(3):42-46.
[15]秦娜.氧化锌避雷器在线监测数据处理方法的研究[D].成都:西南交通大学,2003.
[2]胡德恒,严璋,谈克雄,等.电力设备状态检测与故障诊断技术[M].北京:中国电力出版社,2009.
[3]罗容波,王岩,李国伟.带电检测技术在避雷器状态诊断中的成功应用[J].电瓷避雷器,2011(6):53-57.LUO Rongbo,WANG Yan,LI Guowei. A successful application of the live detection technology in the diagnosis of lightning arrester state[J]. Insulators and Surge Arresters,2011,43(6):53-57.
[4]赵汝国,王宝利,冯新岩.红外测温技术诊断氧化锌避雷器安装缺陷[J].高电压技术,2006,32(3):118-119.ZHAO Ruguo,WANG Baoli,FENG Xinyan. Example of defect of the metal-oxide arrestor installation detected by the infrared detection[J]. High Voltage Engineering,2006,32(3):118-119.
[5]汤成艳.基于红外热像的金属氧化锌避雷器故障检测技术研究[D].长沙:湖南大学,2016.
[6]国家能源局.带电设备红外诊断应用规范:DL/T664—2016[S].北京:中国电力出版社,2016.
[7]刘振莉,郭洁,金青,等.交流Zn O电阻片小电流区阻性、容性电流与电压关系研究[J].电瓷避雷器,2012(5):70-73.LIU Zhenli,GUO Jie,JIN Qing,et al. Research on the relationship between the voltage and the resistive current,capacitive current in low current of MOV[J]. Insulators and Surge Arresters,2012(5):70-73.
[8]梁毓锦.金属氧化物非线性电阻在电力系统中的应用[M].电力出版社,1997.
[9]刘国特,江栩铄,叶茂泉,等.基于有限元的无间隙氧化锌避雷器电阻片电位分布计算与影响因素分析[J].智能电网,2016(1):75-79.LIU Guote,JIANG Xushuo,YE Maoquan,et al. Finite element method based calculation of varistor potential distribution for gapless Zinc oxide arrester and influence factors analysis[J]. Smart Grid,2016(1):75-79.
[10]王保山,刘斌,张曦,等.交流特高压避雷器电压分布的测量与分析[J].高电压技术,2008,34(9):1781-1787.WANG Baoshan,LIU Bin,ZHANG Xi,et al. Measurement and analysis about the potential distribution of the1000 k V metal-oxide surge arrester[J]. High Voltage Engineering,2008,34(9):1781-1787.
[11]吴亮.避雷器电位分布测试方法研究[J].电瓷避雷器,2015,47(3):110-114.WU Liang. Study on the potential distribution testing method for arresters[J]. Insulators and Surge Arresters,2015,47(3):110-114.
[12]李庆玲.氧化锌避雷器运行状况研究[D].兰州:兰州理工大学,2008.
[13]电力工业部.电力设备预防性试验规程:DL/T596—1996[S].北京:中国电力出版社,1997.
[14]周多军.浅议无间隙金属氧化物避雷器不拆引线的测试方法[J].电瓷避雷器,2008(3):42-46.ZHOU Duojun. Method of gapless MOA test without removing connecting Lead[J]. Insulators and Surge Arresters,2008(3):42-46.
[15]秦娜.氧化锌避雷器在线监测数据处理方法的研究[D].成都:西南交通大学,2003.