雾霾参数对绝缘表面等值盐密的影响  

Influence of Fog-haze Parameters on Equivalent Salt Deposit Density of External Insulation

作　　者：刘长义[1] 王黎明[2] 刘动[2] 赵晨龙[2] 张楚岩[2] 卢明[3] 

机构地区：[1]国网河南省电力公司,郑州450052 [2]清华大学深圳研究生院,深圳518055 [3]国网河南省电力公司电力科学研究院,郑州450052

出　　处：《高电压技术》2016年第6期1841-1847,共7页High Voltage Engineering

基　　金：国家自然科学基金(51377093)~~

摘　　要：雾霾环境中的输变电设备外绝缘积污规律有其特殊性,为了研究雾霾持续时间与雾霾成分对外绝缘积污的影响,用硅橡胶试片与XP-70绝缘子进行模拟积污试验。试验结果表明:试片在雾霾环境中的积污速率快且难以达到饱和,悬浮颗粒物的沉降对积污起主要作用;绝缘子在雾霾环境中的积污速率较快且迅速达到饱和,悬浮颗粒物的扩散与粘附对积污起主要作用。此外,增加雾电导率以及霾成分中含有的可溶且能电离的物质有利于积污的增加。通过预涂高岭土与不预涂高岭土的绝缘子对比积污试验,发现雾霾时绝缘子表面的初始灰密对绝缘子等值盐密的增长有微弱影响。Pollution rules of power transmission equipment exposing in the fog-haze environment has its own peculiarities. In order to study the duration of haze and smog components affecting the contamination of external insulation, the silicone rubber specimen and XP-70 insulators are used to simulate the contamination tests. The results show that the contamination rate in the fog-haze environment is fast and hard to reach saturation. Suspended particulate deposition play a major role in the contamination. The contamination rate in haze environment more quickly reaches saturation. Suspended proliferation and adhesion of the contamination particles play a major role. In addition, the increase of fog conductivity and dissolvable electrolyte in the haze promote the increase of contamination. Through the insulators test in the presence and absence of Kaolin, results show that the NSDD of insulators have a marginal impact on the ESDD growth in the fog-haze environment.

关 键 词：雾霾 积污规律 等值盐密 雾霾持续时间 雾霾成分 雾电导率 

分 类 号：TM852[电气工程—高电压与绝缘技术]