500 kV氧化锌避雷器阀片老化缺陷试验分析
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摘要
氧化锌避雷器是电力系统中限制过电压的主要保护设备之一,为了保证电力系统安全运行,对氧化锌避雷器进行在线监测以实时了解其运行状态,及时发现氧化锌避雷器的异常现象及事故隐患是十分必要的。文中对500 kV MOA不同位置老化情况进行了试验,通过红外成像装置及MOA阻性电流测试仪研究分析了MOA的温度及各电气参数的变化情况。试验结果表明:MOA单节电阻片老化严重时,温度变化最显著的是其相邻节;在MOA电阻片严重老化时,红外热成像技术可以作为判断MOA老化位置的依据,而MOA各电气参数并不能作为判断MOA老化位置的依据;红外测温技术与泄漏电流带电检测技术相结合可作为MOA在线监测的有效手段。文中在试验室对500 kV MOA不同老化位置下各个电气参数及整体温度分布情况进行了试验研究分析,因氧化锌避雷器实际运行时的周围环境与试验室环境差异较大,文中所得结论仅供读者参考。
To ensure safe operation of electricpower system,it is necessary to online monitor the zinc oxide arrester (MOA) to understand its running state and find outits abnormal phenomena and hidden dangers in time. In this study,the aging of a 500 kV MOA in different positions was tested. The temperature and the change of the electrical parameters of MOA were analyzed by infrared imaging device and MOA resistive current tester. The results show that:①when single section of MOA valve strip suffers severe aging,the adjacent section is subjected to the most significant change of temperature;②in the case of severe aging of the MOA valve strip,the infrared thermal imaging technique can be used to judge the aging position of MOA,while the electrical parameters of MOA cannot be used to judge the aging position due to their low sensitivity to aging;③the infrared temperature measuring technology combined with the leakage current live inspection technology is effective for online monitoring of MOA. Moreover,the electrical parameters and the overall temperature distribution of the 500 kV MOA with different aging positions were tested and analyzed in laboratory. Because the actual operation environment of MOA is quite different from the laboratory environment,the conclusions from this study are merely areference.
To ensure safe operation of electricpower system,it is necessary to online monitor the zinc oxide arrester (MOA) to understand its running state and find outits abnormal phenomena and hidden dangers in time. In this study,the aging of a 500 kV MOA in different positions was tested. The temperature and the change of the electrical parameters of MOA were analyzed by infrared imaging device and MOA resistive current tester. The results show that:①when single section of MOA valve strip suffers severe aging,the adjacent section is subjected to the most significant change of temperature;②in the case of severe aging of the MOA valve strip,the infrared thermal imaging technique can be used to judge the aging position of MOA,while the electrical parameters of MOA cannot be used to judge the aging position due to their low sensitivity to aging;③the infrared temperature measuring technology combined with the leakage current live inspection technology is effective for online monitoring of MOA. Moreover,the electrical parameters and the overall temperature distribution of the 500 kV MOA with different aging positions were tested and analyzed in laboratory. Because the actual operation environment of MOA is quite different from the laboratory environment,the conclusions from this study are merely areference.
引文
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[5]朱海貌,黄锐,夏晓波,等.金属氧化物避雷器带电检测数据异常的诊断及分析[J].电瓷避雷器,2012(2):68-71.ZHU Haimao,HUANG Rui,XIA Xiaobo,et al.Diagnosis and analysis on the live detection data abnormal of MOA[J].Insulators and Surge Arresters,2012(2):68-71.
[6]李顺尧.金属氧化锌避雷器测试方法对比与分析[J].高压电器,2010,46(3):94-97.LI Shunyao.Comparison and analysis of MOA test methods[J].High Voltage Apparatus,2010,46(3):94-97.
[7]张雨,朱泽慧,张春辉,等.35 kV氧化锌避雷器直流1 mA电压值试验分析[J].电瓷避雷器,2015(3):115-119.ZHANG Yu,ZHU Zehui,ZHANG Chunhui,et al.Analysis on the test about 1 mA DC voltage value of 35 k V MOA[J].Insulators and Surge Arresters,2015(3):115-119.
[8]严玉婷,黄炜昭,江建武,等.避雷器带电测试的原理及仪器比较和现场事故缺陷分析[J].电瓷避雷器,2011(2):57-62.YAN Yuting,HUANG Weizhao,JIANG Jianwu,et al.Principle and instrument comparison of arrester live line test and analysis on the flaw in field[J].Insulators and Surge Arresters,2015(3):115-119.
[9]王肖波.基于带电检测技术的金属氧化物避雷器故障诊断与实例分析[J].电瓷避雷器,2015(3):69-73.WANG Xiaobo.MOA failure diagnosis and practical case analysis based on live detection technology[J].Insulators and Surge Arresters,2015(3):69-73.
[10]IMAI T,UDAGAWA T,ANDO H,et al.Development of high gradient zinc-oxide nonlinear resistors and their application to surge arresters[J].IEEE Transactions on Power Delivery,1998,13(4):1182-1187.
[11]SHICHIMIYA S,YAMAG UCHI M,FURUSE N,et al.Development of advanced arresters for GIS with new zincoxide elements[J].IEEE Transactions on Power Delivery,1998,13(2):465-471.
[12]庞博,刘树清,王树军,等.110 kV线路绝缘子式避雷器方案分析及仿真验证[J].高压电器,2016,52(8):177-183.PANG Bo,LIU Shuqing,WANG Shujun,et al.Design and simulation of the lighting-protective insulator for 110 kVtransmission line[J].High Voltage Apparatus,2016,52(8):177-183.
[13]输变电设备状态检修试验规程:DL/T 393-2010[S].2010.Regulations of condition-based maintenance&test for electric equipment:DL/T 393-2010[S].2010.
[14]HE Jinliang,HU Jun,LIN Yuanhua.ZnO varistors with high voltage gradient and low leakage current by doping rareearth oxide[J].Science in China,Series E:Technological Sciences,2008,51(6):693-701.
[15]CHEN Qingheng,HE Jinliang,TAN Kexiong,et al.Influence of grain size on distribution of temperature and thermal stress in ZnO varistor ceramics[J].Science in China,Series E:Technological Sciences,2002,45(4):337-347.
[16]苗发金.金属氧化物电阻片电容特性的研究[J].电瓷避雷器,2016(5):102-105.MIAO Jinfa.Study on the capacitance characteristics of metal-oxide varistor[J].Insulators and Surge Arresters,2016(5):102-105.
[17]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 the 1 000 kVmetal-oxide surge arrester[J].High Voltage Engineering,2008,34(9):1781-1787.
[18]王保山,刘洋,汤霖,等.交流无间隙金属氧化物避雷器的电压分布特性研究[J].电瓷避雷器,2012(1):38-44.WANG Baoshan,LIU Yang,TANG Lin,et al.Research on characteristics of voltage distribution of the metal oxide arrester without gap used for AC system[J].Insulators and Surge Arresters,2012(1):38-44.
[19]张金岗.红外测温技术在氧化锌避雷器带电检测中的应用[J].高压电器,2015,51(6):200-204.ZHANG Jingang.Application of infrared temperature measurement technology to live detection of Zinc oxide arrester[J].High Voltage Apparatus,2015,51(6):200-204.
[20]车文俊,张晓星,李明刚,等.1 000 kV GIS型和瓷套型避雷器研发综述[J].高电压技术,2010,36(1):230-236.CHE Wenjun,ZHANG Xiaoxing,LI Minggang,et al.Research and development overview of 1 000 kV GIS and porcelain housed surge arresters[J].High Voltage Engineering,2010,36(1):230-236.
[21]董莉娜,胡可,王微波,等.小波消噪在10 kV金属氧化物避雷器在线检测中的应用[J].高电压技术,2014,40(3):891-896.DONG Lina,HU Ke,WANG Weibo,et al.Application of wavelet de-noise in on-line detection of 10 k V metal oxide arresters[J].High Voltage Engineering,2014,40(3):891-896.
[22]带电设备红外诊断应用规范:DL/T 664-2008[S].2008.Application rules of infrared diagnosis for live electrical equipment:DL/T 664-2008[S].2008.
[23]谭俊源,唐军,刘晓庭,等.珠江三角洲某地区雷电特征对10 k V配网用避雷器故障的影响分析[J].高压电器,2014,50(4):113-119.TAN Junyuan,TANG Jun,LIU Xiaoting,et al.Effects of lightning features on arrester faults in 10 k V distribution network in the pearl river delta[J].High Voltage Apparatus,2014,50(4):113-119.
[24]周文俊,喻剑辉,陈荣,等.雷电流全参数及避雷器状态在线监测研究[J].高电压技术,2008,34(10):2054-2058.ZHOU Wenjun,YU Jianhui,CHEN Rong,et al.Re-(241)search on whole parameters of lightning current waveform and on-line monitoring of arresters[J].High Voltage Engineering,2008,34(10):2054-2058.
[25]李志兵,颜湘莲,王浩,等.金属氧化物避雷器在陡波下的试验与模型分析[J].高电压技术,2012,38(10):2698-2706.(236)LI Zhibing,YAN Xianglian,WANG Hao,et al.Analysis of test and model for metal oxide arrester under steep-front wave[J].High Voltage Engineering,2012,38(10):2698-2706.
[2]葛猛,韩学坤,陶安培.金属氧化物避雷器阀片老化缺陷的诊断及原因分析[J].高压电器,2009,45(3):145-147.GE Meng,HAN Xuekun,TAO Anpei.Diagnosising and analysising the aged flaw of MOA valve piece[J].High Voltage Apparatus,2009,45(3):145-147.
[3]俞震华.氧化锌避雷器故障分析及性能判断方法[J].电力建设,2010,31(11):89-93.YU Zhenhua.Fault analysis and performance evaluation for metal oxide arresters[J].Electric Power Construction,2010,31(11):89-93.
[4]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(6):53-57.
[5]朱海貌,黄锐,夏晓波,等.金属氧化物避雷器带电检测数据异常的诊断及分析[J].电瓷避雷器,2012(2):68-71.ZHU Haimao,HUANG Rui,XIA Xiaobo,et al.Diagnosis and analysis on the live detection data abnormal of MOA[J].Insulators and Surge Arresters,2012(2):68-71.
[6]李顺尧.金属氧化锌避雷器测试方法对比与分析[J].高压电器,2010,46(3):94-97.LI Shunyao.Comparison and analysis of MOA test methods[J].High Voltage Apparatus,2010,46(3):94-97.
[7]张雨,朱泽慧,张春辉,等.35 kV氧化锌避雷器直流1 mA电压值试验分析[J].电瓷避雷器,2015(3):115-119.ZHANG Yu,ZHU Zehui,ZHANG Chunhui,et al.Analysis on the test about 1 mA DC voltage value of 35 k V MOA[J].Insulators and Surge Arresters,2015(3):115-119.
[8]严玉婷,黄炜昭,江建武,等.避雷器带电测试的原理及仪器比较和现场事故缺陷分析[J].电瓷避雷器,2011(2):57-62.YAN Yuting,HUANG Weizhao,JIANG Jianwu,et al.Principle and instrument comparison of arrester live line test and analysis on the flaw in field[J].Insulators and Surge Arresters,2015(3):115-119.
[9]王肖波.基于带电检测技术的金属氧化物避雷器故障诊断与实例分析[J].电瓷避雷器,2015(3):69-73.WANG Xiaobo.MOA failure diagnosis and practical case analysis based on live detection technology[J].Insulators and Surge Arresters,2015(3):69-73.
[10]IMAI T,UDAGAWA T,ANDO H,et al.Development of high gradient zinc-oxide nonlinear resistors and their application to surge arresters[J].IEEE Transactions on Power Delivery,1998,13(4):1182-1187.
[11]SHICHIMIYA S,YAMAG UCHI M,FURUSE N,et al.Development of advanced arresters for GIS with new zincoxide elements[J].IEEE Transactions on Power Delivery,1998,13(2):465-471.
[12]庞博,刘树清,王树军,等.110 kV线路绝缘子式避雷器方案分析及仿真验证[J].高压电器,2016,52(8):177-183.PANG Bo,LIU Shuqing,WANG Shujun,et al.Design and simulation of the lighting-protective insulator for 110 kVtransmission line[J].High Voltage Apparatus,2016,52(8):177-183.
[13]输变电设备状态检修试验规程:DL/T 393-2010[S].2010.Regulations of condition-based maintenance&test for electric equipment:DL/T 393-2010[S].2010.
[14]HE Jinliang,HU Jun,LIN Yuanhua.ZnO varistors with high voltage gradient and low leakage current by doping rareearth oxide[J].Science in China,Series E:Technological Sciences,2008,51(6):693-701.
[15]CHEN Qingheng,HE Jinliang,TAN Kexiong,et al.Influence of grain size on distribution of temperature and thermal stress in ZnO varistor ceramics[J].Science in China,Series E:Technological Sciences,2002,45(4):337-347.
[16]苗发金.金属氧化物电阻片电容特性的研究[J].电瓷避雷器,2016(5):102-105.MIAO Jinfa.Study on the capacitance characteristics of metal-oxide varistor[J].Insulators and Surge Arresters,2016(5):102-105.
[17]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 the 1 000 kVmetal-oxide surge arrester[J].High Voltage Engineering,2008,34(9):1781-1787.
[18]王保山,刘洋,汤霖,等.交流无间隙金属氧化物避雷器的电压分布特性研究[J].电瓷避雷器,2012(1):38-44.WANG Baoshan,LIU Yang,TANG Lin,et al.Research on characteristics of voltage distribution of the metal oxide arrester without gap used for AC system[J].Insulators and Surge Arresters,2012(1):38-44.
[19]张金岗.红外测温技术在氧化锌避雷器带电检测中的应用[J].高压电器,2015,51(6):200-204.ZHANG Jingang.Application of infrared temperature measurement technology to live detection of Zinc oxide arrester[J].High Voltage Apparatus,2015,51(6):200-204.
[20]车文俊,张晓星,李明刚,等.1 000 kV GIS型和瓷套型避雷器研发综述[J].高电压技术,2010,36(1):230-236.CHE Wenjun,ZHANG Xiaoxing,LI Minggang,et al.Research and development overview of 1 000 kV GIS and porcelain housed surge arresters[J].High Voltage Engineering,2010,36(1):230-236.
[21]董莉娜,胡可,王微波,等.小波消噪在10 kV金属氧化物避雷器在线检测中的应用[J].高电压技术,2014,40(3):891-896.DONG Lina,HU Ke,WANG Weibo,et al.Application of wavelet de-noise in on-line detection of 10 k V metal oxide arresters[J].High Voltage Engineering,2014,40(3):891-896.
[22]带电设备红外诊断应用规范:DL/T 664-2008[S].2008.Application rules of infrared diagnosis for live electrical equipment:DL/T 664-2008[S].2008.
[23]谭俊源,唐军,刘晓庭,等.珠江三角洲某地区雷电特征对10 k V配网用避雷器故障的影响分析[J].高压电器,2014,50(4):113-119.TAN Junyuan,TANG Jun,LIU Xiaoting,et al.Effects of lightning features on arrester faults in 10 k V distribution network in the pearl river delta[J].High Voltage Apparatus,2014,50(4):113-119.
[24]周文俊,喻剑辉,陈荣,等.雷电流全参数及避雷器状态在线监测研究[J].高电压技术,2008,34(10):2054-2058.ZHOU Wenjun,YU Jianhui,CHEN Rong,et al.Re-(241)search on whole parameters of lightning current waveform and on-line monitoring of arresters[J].High Voltage Engineering,2008,34(10):2054-2058.
[25]李志兵,颜湘莲,王浩,等.金属氧化物避雷器在陡波下的试验与模型分析[J].高电压技术,2012,38(10):2698-2706.(236)LI Zhibing,YAN Xianglian,WANG Hao,et al.Analysis of test and model for metal oxide arrester under steep-front wave[J].High Voltage Engineering,2012,38(10):2698-2706.