[1]宋 楠,王致杰.液滴面积法用于绝缘材料憎水性表征的适应性[J].电瓷避雷器,2020,(02):168-176.[doi:10.16188/j.isa.1003-8337.2020.02.027]
 SONG Nan,WANG Zhijie.Adaptation of Drop Area Method to Characterize Hydrophobicity of Insulation Materials[J].,2020,(02):168-176.[doi:10.16188/j.isa.1003-8337.2020.02.027]
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液滴面积法用于绝缘材料憎水性表征的适应性()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年02期
页码:
168-176
栏目:
绝缘子
出版日期:
2020-04-25

文章信息/Info

Title:
Adaptation of Drop Area Method to Characterize Hydrophobicity of Insulation Materials
作者:
宋 楠 王致杰
(上海电机学院电气学院, 上海 201306)
Author(s):
SONG Nan WANG Zhijie
(Shanghai Dianji University, Shanghai 201306, China)
关键词:
绝缘材料 憎水性 液滴面积法 接触角 临界接触角
Keywords:
insulation materials hydrophobicity drop area method contact angle critical contact angle
DOI:
10.16188/j.isa.1003-8337.2020.02.027
摘要:
提高绝缘子憎水性等级判定的准确性可精确复合绝缘子的老化水平。分析接触角、液滴体积和液体参数对液滴面积和液滴面积法灵敏度的影响,得出了随着接触角增加液滴面积和其灵敏度下降,随液滴体积、液体参数的增加液滴面积和灵敏度均增大的规律。总结了水在常见体积下的水珠面积法与接触角的对应关系,表明了接触角过大时液滴面积变化非常小,灵敏度大大下降,面积法应用在材料表面接触角小于临界接触角的情况下。采用不同的绝缘材料实测了液滴面积和接触角,验证了测量结果的可靠性。
Abstract:
Improving the accuracy of determining the hydrophobicity grade of insulator can accurately compound the aging level of insulator. The effects of contact angle, droplet volume and liquid parameters on the sensitivity of drop area and drop area method are analyzed.It is concluded that as the contact angle increases, the drop area and its sensitivity decrease and with the volume of droplet, the area and sensitivity of droplet increase with the increase of liquid parameters.The relationship between the water droplet area method and the contact angle under the common volume is summarized. It is shown that the drop area change is greatly reduced when the contact angle is too large, and the area method is applied when the contact angle of the material surface is less than the critical contact angle. Using different insulating materials to measure the liquid drop area and contact angle are obtained, and the reliability of the measurement results is verified by modeling and simulation. It is helpful to select suitable method to judge the hydrophobicity grade of insulator more accurately according to the actual situation.

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备注/Memo

备注/Memo:
收稿日期:2018-05-21作者简介:宋楠(1995—),女,硕士,研究方向:高电压技术与新能源发电。基金项目:国家自然科学基金(编号:51477099); 上海市自然科学基金项目(编号:15ZR1417300); 上海市闵行区科技项目(编号:2014MH166)。
更新日期/Last Update: 2020-04-25