环境湿度对复合绝缘子红外测温的影响
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摘要
红外测温技术是检测复合绝缘子端部发热的常用手段。在目前使用过程中,红外测温结果受自然环境特别是环境湿度的影响较大。对深圳地区近5年的部分红外测温数据进行统计分析,研究复合绝缘子高压端与低压端温差测量值与环境相对湿度的相关性,并在不同环境相对湿度下对复合绝缘子的性能进行试验分析。结果表明:在较高环境相对湿度条件下,复合绝缘子红外测温结果上升,介损角正切值逐步增大并趋于饱和。结合数据统计和试验结果,建议红外测温技术使用应在环境湿度低于67.5%时进行。
The infrared temperature measurement technology is often used for detecting the terminal heating of composite insulator. Currently, in the process of measurement, the natural environmental factors, especially the environment humidity, plays an important role in effecting the measured results. Therefore, we statistically analyzed the recent 5 years data of infrared temperature measurement in Shenzhen, and studied the correlation between the environment humidity and measured value of temperature difference between the high-voltage and low-voltage terminals of the composite insulator under different environment relative humidity. Moreover, we analyzed the properties of composite insulator under different environment humidity by tests. The results show that, under the condition of higher environment relative humidity, the measured value of composite insulator will rise, the tangent value of dielectric loss angle gradually increases and trends to be saturated. According to the statistical data and test results, we recommend that the infrared temperature measurement shall be conducted when the environment humidity is lower than 67.5%.
The infrared temperature measurement technology is often used for detecting the terminal heating of composite insulator. Currently, in the process of measurement, the natural environmental factors, especially the environment humidity, plays an important role in effecting the measured results. Therefore, we statistically analyzed the recent 5 years data of infrared temperature measurement in Shenzhen, and studied the correlation between the environment humidity and measured value of temperature difference between the high-voltage and low-voltage terminals of the composite insulator under different environment relative humidity. Moreover, we analyzed the properties of composite insulator under different environment humidity by tests. The results show that, under the condition of higher environment relative humidity, the measured value of composite insulator will rise, the tangent value of dielectric loss angle gradually increases and trends to be saturated. According to the statistical data and test results, we recommend that the infrared temperature measurement shall be conducted when the environment humidity is lower than 67.5%.
引文
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[14]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.
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[16]袁田,向铁元,代静,等.棒形复合绝缘子芯棒吸湿问题的分析与对策[J].高电压技术,2014,40(11):3468-3476.YUAN Tian,XIANG Tieyuan,DAI Jing,et al.Analysis and solutions of moisture absorption of fiber reinforced plastic rods[J].High Voltage Engineering,2014,40(11):3468-3476.
[2]HACKAM R.Outdoor HV composite polymeric insulator[J].IEEETransactions on Dielectrics and Electrical Insulation,1999,6(5):557-585.
[3]刘泽洪.复合绝缘子使用现状及其在特高压输电线路中的应用前景[J].电网技术,2006,30(12):1-7.LIU Zehong.Present situation and prospects of applying composite insulators to UHF transmission lines in China[J].Power System Technology,2006,30(12):1-7.
[4]律方成,刘杰,石鹏,等.复合绝缘子故障检测方法的有效性分析[J].高压电器,2013,49(5):95-99.LüFangcheng,LIU Jie,SHI Peng,et al.Experimental research on composite insulator fault detection[J].High Voltage Apparatus,2013,49(5):95-99.
[5]EDSON G,TARSO V.Characterization of polymeric insulators using thermal and UV imaging under laboratory conditions[J].IEEE Transactions on Dielectrics and Electrical Insulation,2009,16(4):985-992.
[6]陈豪,陈原,赵雪松,等.红外测温技术在复合绝缘子检测中的应用[J].电力设备,2006,7(9):42-43.CHEN Hao,CHEN Yuan,ZHAO Xuesong,et al.Application of infrared temperature measurement technology in detection of composite insulator[J].Electrical Equipment,2006,7(9):42-43.
[7]王黎明,张中浩,成立,等.复合绝缘子护套受潮对端部异常温升的影响[J].电网技术,2016,40(2):608-613.WANG Liming,ZHANG Zhonghao,CHENG Li,et al.Effect of damp sheath on abnormal temperature rise at end of composite insulator[J].Power System Technology,2016,40(2):608-613.
[8]王黎明,李昂,成立.复合绝缘子微波无损检测方法的关键因素研究[J].高电压技术,2017,43(1):203-209.WANG Liming,LI Ang,CHENG Li.Key factors of microwave non-destructive testing on composite insulators[J].High Voltage Engineering,2017,43(1):203-209.
[9]梁曦东,李少华,高岩峰,等.大直径复合绝缘子转轮法试验(一):试验参数探讨[J].高电压技术,2018,44(3):673-679.LIANG Xidong,LI Shaohua,GAO Yanfeng,et al.Tracking wheel test for composite insulator with large diameter:part I-discussion on test parameters[J].High Voltage Engineering,2018,44(3):673-679.
[10]邓红雷,鲁强,陈力,等.基于超声导波的复合绝缘子检测[J].高电压技术,2016,42(4):1236-1244.DENG Honglei,LU Qiang,CHEN Li,et al.Detection for composite insulator based on ultrasonic guided wave[J].High Voltage Engineering,2016,42(4):1236-1244.
[11]GONG B,TU Y P,ZHOU Y Y,et al.Moisture absorption characteristics of silicone rubber and its effect on dielectric properties[C]∥Annual Report Conference on Electrical Insulation and Dielectric Phenomena.Shenzhen,China:[s.n.],2013:430-433.
[12]陈桂阳,成立,裴慧坤,等.高湿度地区交流复合绝缘子发热机理及控制措施研究[J].陕西电力,2014,42(10):49-58.CHEN Guiyang,CHENG Li,PEI Huikun,et al.Heating mechanism and control measures of AC composite insulators in super-humid regions[J].Shaanxi Electric Power,2014,40(10):49-58.
[13]汪佛池,马建桥,律方成,等.污秽和水分对瓷支柱绝缘子发热的影响[J].高电压技术,2015,41(9):3054-3060.WANG Fochi,MA Jianqiao,LüFangcheng,et al.Pollution and water molecule effects on porcelain post insulator heating[J].High Voltage Engineering,2015,41(9):3054-3060.
[14]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.
[15]戴罕奇,赵晨龙,徐冰,等.染污复合绝缘子受潮过程研究[J].电网技术,2016,40(7):2227-2235.DAI Hangqi,ZHAO Chenlong,XU Bing,et al.Investigation on wetting process of polluted composite insulator[J].Power System Technology,2016,40(7):2227-2235.
[16]袁田,向铁元,代静,等.棒形复合绝缘子芯棒吸湿问题的分析与对策[J].高电压技术,2014,40(11):3468-3476.YUAN Tian,XIANG Tieyuan,DAI Jing,et al.Analysis and solutions of moisture absorption of fiber reinforced plastic rods[J].High Voltage Engineering,2014,40(11):3468-3476.