人工盐雾污秽试验中盐雾对绝缘子表面盐密的影响
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摘要
在进行固体层法与盐雾法结合的人工盐雾污秽试验时,存在盐雾对绝缘子表面污秽的冲洗作用。当采用均匀升压法进行试验时,这种冲洗作用与加压之前的润湿时间有关;当采用恒压升降法进行试验时,这种冲洗作用与恒压持续时间有关。本文针对盐雾对绝缘子表面污秽的冲洗作用,在盐雾污秽试验过程中的一系列时间点对绝缘子表面污秽进行了检测。结果表明,低导电率盐雾会对绝缘子表面污秽产生冲洗作用,使绝缘子表面的盐密随着喷雾时间的增长而减小;但高导电率盐雾由于一方面盐雾会冲洗绝缘子表面污秽,另一方面盐雾会附着在绝缘子表面补充表面导电物质,两者的影响互补,结果表明,高导电率盐雾对绝缘子表面盐密的影响不明显。
In the experiment of artificial salt fog polluted by the combination of the solid layer method and the salt spray method,the cleaning effect of salt spray on the surface contamination of the insulator is existed. The cleaning effect is related to the wetting time before the pressure is applied. In this paper,according to the cleaning effect of salt spray on the surface contamination of insulators,the contamination of insulator surface was detected in a series of time points. The results show that the salt fog of low conductivity will produce cleaning effect on insulator surfaces,the surface of the insulator salt density decreases with the increase of spray time; but the salt fog of high conductivity will clean insulators,on the other hand,salt fog will be attached to the surface of the insulator and the results show that the high conductivity of salt fog on the surface of the insulator salt density is not obvious.
In the experiment of artificial salt fog polluted by the combination of the solid layer method and the salt spray method,the cleaning effect of salt spray on the surface contamination of the insulator is existed. The cleaning effect is related to the wetting time before the pressure is applied. In this paper,according to the cleaning effect of salt spray on the surface contamination of insulators,the contamination of insulator surface was detected in a series of time points. The results show that the salt fog of low conductivity will produce cleaning effect on insulator surfaces,the surface of the insulator salt density decreases with the increase of spray time; but the salt fog of high conductivity will clean insulators,on the other hand,salt fog will be attached to the surface of the insulator and the results show that the high conductivity of salt fog on the surface of the insulator salt density is not obvious.
引文
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[18]国网电力科学研究院,西安高压电器研究院有限责任公司西安电瓷研究所.污秽条件下使用的高压绝缘子的选择与尺寸确定:GB/T 26218. 1—2010[S].北京:中国标准出版社,2010.
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[21] SULAIMAN A E,QURESHI M I. Effect of contamination on the leakage current of inland desert insulators[J].IEEE Transactions on Electrical Insulation,1984,19(4):332-339.
[2]蒋兴良,舒立春,张永记,等.人工污秽下盐/灰密对普通悬式绝缘子串交流闪络特性的影响[J].中国电机工程学报,2006,26(15):24-28.JIANG Xingliang,SHU Lichun,ZHANG Yongji,et al.Influence of ESDD and NSDD on AC flashover characteristic of artificially polluted XP-160 insulators[J]. Proceedings of the Chinese Society for Electrical Engineering,2006,26(15):24-28.
[3]张楚岩,张福增,李锐海,等.绝缘子人工污秽试验加压方式的比较[J].高电压技术,2013,39(1):44-53.ZHANG Chuyan,ZHANG Fuzeng,LI Ruihai,et al.Comparison of on-load voltage methods in artificial contamination test for insulators[J]. High Voltage Engineering,2013,39(1):44-53.
[4]何正浩,王昱晴,宋思齐,等.盐密与盐度对不同型式绝缘子串交流人工污秽闪络特性的影响[J].高电压技术,2016(12):3810-3815.HE Zhenghao,WANG Yuqing,SONG Siqi,et al. Effects of salt density and salinity on flashover characteristics of AC insulators in different types of insulator strings[J].High Voltage Engineering,2016(12):3810-3815.
[5]张佰庆,郑秋玮,刘洋,等.长棒形瓷绝缘子交流污闪特性的试验研究[J].电瓷避雷器,2017(2):128-133.ZHANG Baiqing,ZHENG Qiuwei,LIU Yang,et al. Research on AC pollution flashover performance test of porcelain long rod insulators[J]. Insulators and Surge Arresters,2017(2):128-133.
[6]王绥瑜,宋思齐,陈钦柱,等.海盐污秽下悬式绝缘子闪络电压特性试验[J].广东电力,2015(4):95-97.WANG Suiyu,SONG Saiji,CHEN Qinzhu,et al. Xiao liming suspended voltage type sea salt pollution flashover test[J]. Guangdong Electric Power,2015(4):95-97.
[7]孟志高,蒋兴良,董冰冰,等.自然雾条件下严重染污玻璃、复合绝缘子交流污闪特性[J].电工技术学报,2016,31(12):65-71.MENG Zhigao,JIANG Xingliang,DONG Bingbing,et al. AC pollution flashover characteristics of surged polluted glass and composite insulators under natural fog conditions[J]. Transactions of China Electrotechnical Society,2016,31(12):65-71.
[8]黄道春,熊紫腾,阮江军,等.污秽中Ca SO4质量分数对瓷绝缘子串泄漏电流特性的影响[J].高电压技术,2016(5):1644-1650.HUANG Daochun,XIONG Ziteng,RUAN Jiangjun,et al. The mass fraction of Ca SO4in the filth of porcelain insulators influence the leakage current characteristics[J].High Voltage Engineering,2016(5):1644-1650.
[9]王绥瑜,罗亚运,陈钦柱,等.盐雾下涂污绝缘子交流闪络特性[J].云南电力技术,2015(3):56-59.WANG Suiyu,LUO Yayun,CHEN Qinzhu,et al. AC flashover performance of insulators bedaub salt spray[J].Yunnan Electric Power Technology,2015(3):56-59.
[10]王昱晴,宋思齐,罗亚运,等.涂污绝缘子在盐雾环境下的交流闪络特性研究[J].电瓷避雷器,2015(5):11-15.WANG Yuqing,SONG Saiji,LUO Yayun,et al. Experiment research on AC flashover performance of smearing insulator under sea-salt pollution[J]. Insulators and Surge Arresters,2015(5):11-15.
[11]宋思齐,王昱晴,何正浩,等.涂污户内支柱绝缘子在凝露情况下的交流闪络特性研究[J].电瓷避雷器,2016(3):25-29.SONG Siqi,WANG Yuqing,HE Zhenghao,et al. In door post insulator in gel under the condition of AC flashover performance[J]. Insulators and Surge Arresters,2016(3):25-29.
[12]关志成,彭功茂,赵锋,等.高海拔下双串并联瓷绝缘子串的直流污闪特性[J].高电压技术,2010(11):2613-2620.GUAN Zhicheng,PENG Gongmao,ZHAO Feng,et al.DC pollution flashover characteristics of a series of parallel porcelain insulator strings at high altitudes[J]. High Voltage Engineering,2010(11):2613-2620.
[13]张志劲.低气压下绝缘子(长)串污闪特性及直流放电模型研究[D].重庆:重庆大学,2007.
[14]苑吉河,蒋兴良,舒立春,等.盐/灰密对不同型式绝缘子交流人工污秽闪络特性的影响[J].中国电机工程学报,2007(6):96-100.YUAN Jihe,JIANG Xingliang,SHU Lichun,et al. Influence of salt/non-soluble deposit density on AC artificial pollution flashover performances of various types insulators[J]. Proceedings of the CSEE,2007(6):96-100.
[15]关志成,牛康,彭功茂,等.硅藻土特性对复合绝缘子人工污秽试验的影响[J].高电压技术,2012,38(9):2383-2388.GUAN Zhicheng,NIU Kang,PENG Gongmao,et al. Influence of kieselguhr characteristics on artificial pollution test of composite insulators[J]. High Voltage Engineering,2012,38(9):2383-2388.
[16]王康,王建国,姚森敬,等.深圳地区支柱绝缘子自然积污特性[J].高电压技术,2014(3):780-786.WANG Kang,WANG Jianguo,YAO Senjing,et al. Shenzhen post insulator natural contamination characteristics[J]. High Voltage Engineering,2014(3):780-786.
[17]罗明武,肖代波.复合绝缘子人工污秽试验方法研究综述[J].高压电器,2012(10):120-125.LUO Mingwu,XIAO Daibo. A review of artificial pollution test methods of composite insulator[J]. High Voltage Apparatus,2012(10):120-125.
[18]国网电力科学研究院,西安高压电器研究院有限责任公司西安电瓷研究所.污秽条件下使用的高压绝缘子的选择与尺寸确定:GB/T 26218. 1—2010[S].北京:中国标准出版社,2010.
[19]张小福.工频电压对污秽玻璃绝缘子冲击闪络特性影响的研究[D].武汉:华中科技大学,2013.
[20]蒋兴良,肖代波,胡建林,等.试验方法对复合绝缘子污秽闪络特性的影响[J].高压电器,2010,46(2):8-11.JIANG Xingliang,XIAO Daibo,HU Jianlin,et al. Influence of test methods on pollution flashover performance of composite insulators[J]. High Voltage Apparatus,2010,46(2):8-11.
[21] SULAIMAN A E,QURESHI M I. Effect of contamination on the leakage current of inland desert insulators[J].IEEE Transactions on Electrical Insulation,1984,19(4):332-339.