玻璃绝缘子积污微观特性研究
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摘要
绝缘子表面的污秽物是导致闪络的重要因素之一。采用SEM结合EDS元素分析技术对于广州典型区域玻璃绝缘绝缘子的污秽沉积性质展开了测试研究,研究结果表明:玻璃绝缘子表面积污微观结构具有层次结构,积污量呈径向减小趋势,并呈现不规律性分布;污秽主要由难溶物组成,不同区域的难溶物组成基本接近,且在径向方向没有大幅度变化;污秽中钙元素的相对含量沿径向升高,钠元素相对含量在径向方向减小。
Contamination of insulator surface is one of the important factors causing flashover acci-dents. So this article focus on microstructure characteristics of insulator natural contamination in Guang-zhou based on the experimental data of SEM and EDS element analysis. Test results indicate that the mi-crostructure of deposition has a hierarchical structure and radial decreasing trend,irregular distribution;contamination is mainly composed of insoluble material which did not change significantly in the radial di-rection,the insulator insoluble contamination of different areas appears nearly uniform composition.Meanwhile the relative content of calcium is increased along the radial direction and the relative contentof sodium decreased in the radial direction.
Contamination of insulator surface is one of the important factors causing flashover acci-dents. So this article focus on microstructure characteristics of insulator natural contamination in Guang-zhou based on the experimental data of SEM and EDS element analysis. Test results indicate that the mi-crostructure of deposition has a hierarchical structure and radial decreasing trend,irregular distribution;contamination is mainly composed of insoluble material which did not change significantly in the radial di-rection,the insulator insoluble contamination of different areas appears nearly uniform composition.Meanwhile the relative content of calcium is increased along the radial direction and the relative contentof sodium decreased in the radial direction.
引文
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[17]宋云海,刘刚,李恒真.公路区与公路农田区绝缘子自然积污成分的对比分析[J].高压电器,2010,46(5):22-25.SONG Yunhai,LIU Gang,LI Hengzhen.Comparative analysis of natural contamination composition on insulators at highway area and highway-farmland area[J].High Voltage Apparatus,2010,46(5):22-25.
[18]李恒真,叶晓君,刘刚,等.广州地区输电线路沿线绝缘子自然污秽化学成分的来源分析[J].高电压技术,2011,37(8):1937-1943.LI Hengzhen,YE Xiaojun,LIU Gang,et al.Source analysis on the chemical composition of natural contamination on the line insulator in Guangzhou area[J].High Voltage Engineering,2011,37(8):1937-1943.
[19]李恒真,刘刚,李立浧,等.采用离子交换色谱法的自然污秽离子成分测量与分析[J].高电压技术,2010,36(9):2154-2159.LI Hengzhen,LIU Gang,LI Liying,et al.Measurement and analysis of natural contamination ion composition using ion chromatography analysis[J].High Voltage Engineering,2010,36(9):2154-2159.
[20]周志成,赵晨龙,高嵩,等.绝缘子自然污秽下受潮及导电特性分析[J].高电压技术,2014,40(12):3680-3687.ZHOU Zhicheng,ZHAO Chenlong,GAO Song,et al.Analysis on wetting and conductive properties of natural polluted insulators[J].High Voltage Engineering,2014,40(12):3680-3687.
[2]宿志一,刘燕生.我国北方内陆地区线路与变电站用绝缘子的直、交流自然积污试验结果的比较[J].电网技术,2004,28(10):13-17.SU Zhiyi,LIU Yansheng.Comparison of natural contaminants accumulated on surfaces of suspension and post insulators with dc and ac stress in northern china's inland areas[J].Power System Technology,2004,28(10):13-17.
[3]李明翔,高国强,冯艳双,等.高速气流场下列车车顶绝缘子积污特性研究[J].电瓷避雷器,2013(1):1-6.LI Mingxiang,GAO Guoqiang,FENG Yanshuang,et al.Contamination characteristics of electric locomotive roof insulator in high speed airflow field[J].Insulators and Surge Arresters,2013(1):1-6.
[4]SHARIATI M R,MORADIAN A R,GHAEMI M R,et a1.Pollution measurement based on DDG method for different type of insulator profile[C]//2004 CIGRE Session.Paris:IEEE,2004:401.
[5]孙廷玺,张振旗.湿沉降对珠海地区输电线路外绝缘的影响[J].广东电力,2010,23(9):32-36.SUN Tingxi,ZHANG Zhenqi.Influence of wet precipitation on external insulation of transmission line in zhuhai[J].Guangdong Electric Power,2010,23(9):32-36.
[6]贺博,万军,陈邦发,等.人工模拟沙尘气候环境下线路绝缘子积污特性研究[J].西安交通大学学报,2008,42(12):1510-1514.HE Bo,WAN Jun,CHEN Bangfa,et al.Contamination depositing characteristics of suspension insulators under sandstorm circumstance simulated artificially[J].Journal of Xi'an Jiaotong University,2008,42(12):1510-1514.
[7]胡扬宇,李黎,胡文,等.雾霾多发地区绝缘子自然积污成分及其来源分析[J].电瓷避雷器,2016(6):29-34.HU Yangyu,LI Li,HU Wen,et al.Component analysis and pollution sources of contamination on insulators in fog and haze areas[J].Insulators and Surge Arresters,2016(6):29-34.
[8]陈爱军.不同盐密和灰密对110k V复合绝缘子污秽闪络特性的影响研究[D].重庆:重庆大学,2006.
[9]屠幼萍,孙佑飞,彭庆军,等.雾霾环境下自然积污绝缘子的污秽颗粒粒径分布特性TU Youping,SUN Youfei,PENG Qingjun,et al.Particle Size Distribution Characteristics of Naturally Polluted Insulators)Under the Fog-haze Environment[J].High Voltage Engineering,2014,11(40):3318-3326.
[10]刘瑛岩,李燕,王晶,等.绝缘子表面对污秽颗粒的粘附力及长程吸引力[J].高电压技术,2014,40(4):1010-1016.LIU Yingyan,LI Yan,WANG Jing,et al.Adhesion force and long-range attractive force between contamination particles and insulator surface[J].High Voltage Engineering,2014,40(4):1010-1016.
[11]王黎明,王耿耿,黄睿,等.降雨对绝缘子表面污秽的清洗作用[J].电网技术,2015,39(6):1703-1708.WANG Liming,WANG Genggeng,HUANG Rui,et al.Cleaning effect of rainfall on surface contamination of insulators[J].Power System Technology,2015,39(6):1703-1708.
[12]王彪,陈焕金,陈伟.复合绝缘子的积污规律初探[J].河北电力技术,2003,22(5):30-32.WANG Biao,CHEN Huanjin,CHEN Wei.A preliminary discussion on accumulated contamination regular pattern on composite insulators[J].Hebei Electric Power,2003,22(5):30-32.
[13]张本皇,李恒真,刘刚,等.珠三角地区不同地形条件下绝缘子污秽积累规律的研究[J].高压电器,2012,48(4):1-6.ZHANG Benhuang,LI Hengzhen,LIU Gang,et al.Study on the rule of insulator contamination accumulation of various landforms in the pearl river delta[J].High Voltage Apparatus,2012,48(4):1-6.
[14]冯斌,常燕,刘小玲,等.高压绝缘子自然污秽组成的研究[J].湖南电力,2007,27(1):9-10.FENG Bin,CHANG Yan,LIU Xiaoling,et al.Study on structure and chemical components of the deposits of natural polluted insulators[J].Hunan Electric Power,2007,27(1):9-10.
[15]黄青丹,陆国俊,李柳云,等.广州地区输电线路绝缘子污秽成分分析[J].高压电器,2013,2(49):85-91.HUANG Qingdan,LU Guojun,LI Liuyun,et al.Analysis on contamination chemical composition of insulator in Guangzhou region transmission lines[J].High Voltage Apparatus,2013,2(49):85-91.
[16]刘凯,朱天容,刘庭,等.绝缘子污秽成分分析与清洗剂去污机理研究[J].高电压技术,2012,38(4):892-898.LIU Kai,ZHU Tianrong,LIU Ting,et al.Chemical composition of high-voltage insulator contamination and detergency mechanism of the electrified detergent for degreasing insulators[J].High Voltage Engineering,2012,38(4):892-898.
[17]宋云海,刘刚,李恒真.公路区与公路农田区绝缘子自然积污成分的对比分析[J].高压电器,2010,46(5):22-25.SONG Yunhai,LIU Gang,LI Hengzhen.Comparative analysis of natural contamination composition on insulators at highway area and highway-farmland area[J].High Voltage Apparatus,2010,46(5):22-25.
[18]李恒真,叶晓君,刘刚,等.广州地区输电线路沿线绝缘子自然污秽化学成分的来源分析[J].高电压技术,2011,37(8):1937-1943.LI Hengzhen,YE Xiaojun,LIU Gang,et al.Source analysis on the chemical composition of natural contamination on the line insulator in Guangzhou area[J].High Voltage Engineering,2011,37(8):1937-1943.
[19]李恒真,刘刚,李立浧,等.采用离子交换色谱法的自然污秽离子成分测量与分析[J].高电压技术,2010,36(9):2154-2159.LI Hengzhen,LIU Gang,LI Liying,et al.Measurement and analysis of natural contamination ion composition using ion chromatography analysis[J].High Voltage Engineering,2010,36(9):2154-2159.
[20]周志成,赵晨龙,高嵩,等.绝缘子自然污秽下受潮及导电特性分析[J].高电压技术,2014,40(12):3680-3687.ZHOU Zhicheng,ZHAO Chenlong,GAO Song,et al.Analysis on wetting and conductive properties of natural polluted insulators[J].High Voltage Engineering,2014,40(12):3680-3687.