基于FTIR的不同运行条件对复合绝缘子老化特性的影响研究
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摘要
为研究现场运行复合绝缘子伞裙在不同条件下的老化状态,利用傅里叶变换红外光谱(fourier transform infrared spectroscopy,FTIR)和硬度测试方法,分析同一厂家生产的运行于不同位置不同运行年限的多支复合绝缘子的老化特性,同时对不同电压等级的复合绝缘子进行电场分布仿真。硬度测试结果表明:处于高压端部的伞裙其上下表面的硬度都随着电压等级的提高而增加,而处于绝缘子中部的伞裙,其表面硬度则随着电压等级的升高而减小。同时发现,同一电压等级的复合绝缘子随着运行年限的增加,伞裙上下表面硬度逐渐增加。FTIR测试结果表明:对于伞裙上表面,Si-O-Si主键吸收峰随着运行年限的增加下降越严重,而下表面试样并未呈现出明确的规律性。硅橡胶复合绝缘子伞裙所处电场强度越高,FTIR红外光谱Si-O-Si和Si-CH3官能团对应特征峰下降程度就越大;对不同相别的复合绝缘子而言,B相伞裙各特征官能团对应的特征峰下降程度最小,说明B相较A、C两相老化最轻。
In order to study the aging condition of composite insulator under different conditions,Fourier transform infrared spectroscopy(FTIR)and hardness testing method are used to analyze the aging conditions of samples operating different years and in the different positions from the same manufacturer.Meanwhile,the electric field distributions of composite insulators with different voltage levels are simulated.The hardness results show that the hardness of the upper and lower shed surfaces are increased with the voltage level,while the surface hardness of the shed in the middle part decreases with the voltage level.It is found that the hardness of the upper and lower shed surface with the same voltage level increased with the service life.FTIR test shows that the absorption peak of Si-O-Si decreased with the service life,the lower surface sample doesn't show a clear regularity.The FTIR infrared spectrum characteristic peaks of the Si-O-Si and Si-CH3 functional group decreases with the increase of electric field strength of the silicone rubber composite insulator shed.For the composite insulators with different phases show that the absorption peak of the B-phase shed had the lowest degree of decrease,which indicates that the aging of B phase is the lightest than that of A and C phase.
In order to study the aging condition of composite insulator under different conditions,Fourier transform infrared spectroscopy(FTIR)and hardness testing method are used to analyze the aging conditions of samples operating different years and in the different positions from the same manufacturer.Meanwhile,the electric field distributions of composite insulators with different voltage levels are simulated.The hardness results show that the hardness of the upper and lower shed surfaces are increased with the voltage level,while the surface hardness of the shed in the middle part decreases with the voltage level.It is found that the hardness of the upper and lower shed surface with the same voltage level increased with the service life.FTIR test shows that the absorption peak of Si-O-Si decreased with the service life,the lower surface sample doesn't show a clear regularity.The FTIR infrared spectrum characteristic peaks of the Si-O-Si and Si-CH3 functional group decreases with the increase of electric field strength of the silicone rubber composite insulator shed.For the composite insulators with different phases show that the absorption peak of the B-phase shed had the lowest degree of decrease,which indicates that the aging of B phase is the lightest than that of A and C phase.
引文
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[20]王建国,刘洋,方春华.交流电晕对高温硫化硅橡胶性能的影响[J].高分子学报,2009,53(4):331-337.WANG Jianguo,LIU Yang,FANG Chunhua.Performance influence of high temperature vulcanization silicone rubber by alternating current corona discharge[J].Acta Polymerica Sinica,2009,53(4):331-337.
[2]李国芳,虞澜,覃永雄.复合绝缘子高温硫化硅橡胶紫外辐射研究[J].辐射研究与辐射工艺学报,2015,33(4):20-27.Li Guofang,Yu Lan,Tan Yongxiong.High temperature vulcanized silicone rubber composite insulator of ultraviolet radiation[J].Journal of radiation research and radiation technology,2015,33(4):20-27.
[3]SAMUEL A,FRANK S,KONSTANTIN O P.Improved silicone rubbers for the use as housing material in composite insulators[J].IEEE Transactions on Dielectrics and Electrical Insulation,2012,19(1):209-211.
[4]XU Z,ZHANG F,ZHANG H,et al.Investigation of the aging of line composite insulator sheds[C]//2012 International Conference on High Voltage Engineering and Application,[S.l.]:IEEE,2012:489-491.
[5]崔江流,宿志一,易辉.我国硅橡胶复合绝缘子的应用与展望[J].中国电力,1999,32(1):38-41.CUI Jiangliu,SU Zhiyi,YI Hui.The application and its prospect of silicon rubber composite insulators in China[J].China power,1999,32(1):38-41.
[6]梁曦东.高电压外绝缘技术的新发展[J].绝缘材料通讯,1999(2):16-20.LIANG Xidong.New development of outside high voltage insulation technology[J].Insulating Materials,1999(2):16-20.
[7]张予,吴光亚,张锐.高温硫化硅橡胶材料的运行特性及分析[J].电瓷避雷器,2006(3):18-22.ZHANG Yu,WU Guangya,ZHANG Rui.Operating characteristics and analysis of high temperature vulcanized silicone rubber[J].Insulators and surge arresters,2006(3):18-22.
[8]殷禹,梁曦东,李庆锋,等.复合绝缘子的人工加速老化试验[J].电网技术,2006,12:69-74+78.YIN Yu,LIANG Xidong,LI Qingfeng,et al.Artificial accelerated ageing test of composite insulators[J].Power System Technology,2006,30(12):69-74.
[9]GAO H F,JIA Z D,GUAN Z C,et al.Evaluation of electrical insulation properties on aged composite insulators in heavily contaminated areas[C]//Proceedings of International Symposium on Electrical Insulation.Toronto,Canada:IEEE,2006:197-200.
[10]高海峰,周军,马仪,等.高海拔区线路运行复合绝缘子的电气性能评估[J].电网技术,2010,34(10):201-205.GAO Haifeng,ZHOU Jun,MA Yi,et al.Electrical performance evaluation of line running composite insulators in high altitude area[J].Power System Technology,2010,34(10):201-205.
[11]张志劲,蒋兴良,孙才新,等.高海拔现场与人工气候室下绝缘子交流污闪特性的比较[J].电网技术,2012,36(2):163-169.ZHANG Zhijin,JIANG Xingliang,SUN Caixin,et al.Comparison of AC pollution flashover characteristics of insulators in high altitude and artificial climate chamber[J].Power System Technology,2012,36(2):163-169.
[12]赵宇倩.硅橡胶复合绝缘子在污湿污秽条件下的特性分析[D].北京:华北电力大学,2010.ZHAO Yuqian.Analysis of the characteristics of silicone rubber composite insulators under polluted conditions[D].Beijing:North China Electric Power University,2010.
[13]汪佛池,律方成,杨升杰,等.基于FTIR的110 kV复合绝缘子硅橡胶伞裙老化性能分析[J].电工技术学报,2015,30(8):297-303.WANG Fuchi,LYU Fangcheng,YANG Shengjie,et al.The aging characteristic of silicon rubber sheds of 110 kVcomposite insulators based on FTIR test[J].Transactions of China Electrotechnical Society,2015,30(8):297-303.
[14]赵翮选,赵书荣,王联章,等.高海拔地区紫外辐射对硅橡胶复合绝缘子老化的影响[J].华北电力技术,2009,30(3):10-13.ZHAO Hexuan,ZHAO Shurong,WANG Lianzhang,et al.Effect of ultraviolet radiation on aging of silicone rubber composite insulators in high altitude area[J].North China Electric Power Technology,2009,30(3):10-13.
[15]刘云鹏,石倩,梁英.干燥环境下紫外辐射对硅橡胶老化性能的影响[J].高压电器,2015,51(4)129-132.LIU Yunpeng,SHI Qian,LIANG Ying.Effect of UV radiation on aging performance of HTV-silicone rubber in dry conditions[J].High Voltage Apparatus,2015,51(4)129-132.
[16]刘杰.基于微观性能分析的复合绝缘子老化特性研究[D].北京:华北电力大学,2013.LIU Jie.Study on aging characteristics of composite insulators based on micro performance analysis[D].Beijing:North China Electric Power University,2013,[17]贺博,万军,张刚,等.自然老化硅橡胶材料表面憎水性及耐受特性的研究[J].高压电器,2009,46(5):16-19.HE Bo,WAN Jun,ZHANG Gang,et al.Study on hydrophobicity and withstand characteristics of natural aging silicone rubber[J].High Voltage Apparatus,2009,46(5):16-19.
[18]申文伟,宋伟,王国利,等.复合绝缘子HTV硅橡胶材料老化特性的研究[J].高压电器,2013,49(2):1-7.SHEN Wenwei,SONG Wei,WANG Guoli,et al.Influence of corona discharge on aging characteristics of HTV silicone rubber material[J].High Voltage Apparatus,2013,49(2):1-7.
[19]梁英,崔春艳,易春芳,等.复合绝缘子老化状态精细评估中的取样方法[J].电网技术,2015,39(2):530-535.LIANG Ying,CUI Chunyan,YI Chunfang,et al.The sampling method for the precise evaluation of aging state of composite insulators[J].Power System Technology,2015,39(2):530-535.
[20]王建国,刘洋,方春华.交流电晕对高温硫化硅橡胶性能的影响[J].高分子学报,2009,53(4):331-337.WANG Jianguo,LIU Yang,FANG Chunhua.Performance influence of high temperature vulcanization silicone rubber by alternating current corona discharge[J].Acta Polymerica Sinica,2009,53(4):331-337.
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