摘要
电力系统中一般采用等值盐密和等值灰密来描述绝缘子表面的染污程度。其中,等值盐密和等值灰密分别表征了绝缘子表面单位面积可溶性污秽和不可溶污秽的量。运行部门一般利用滤纸过滤称重的方法测量绝缘子的等值灰密,但由于缺乏细致的测量规范,等值灰密测量值有一定分散性。为了研究灰密测量的影响因素,笔者从滤纸烘干温度、烘干时间、滤纸饱和重量及冷却时间4个方面出发,研究了上述因素对滤纸质量法中滤纸干燥程度的影响,在此基础上,给出了灰密的测量程序。试验结果表明,滤纸烘干温度为110℃,烘干时间15 min的,可以在提高试验的重复性的同时减少试验时间。本文对操作人员进行等值灰密测量有一定参考价值。
In order to describe the contamination degree of insulator surface, the equivalent salt density and non-soluble deposit density are generally used to characterize the soluble salts and insoluble contamination per unit area of insulator surface. In the operation department, filter paper is used to measure the non-soluble deposit density. Due to the lack of detailed measurement specifications, the measurement value of non-soluble deposit density has certain dispersion. For standardizing the measurement methods of NSDD, the influence of drying temperature, drying time, filter paper saturated weight and cooling time on the measurement was studied. The experimental results show that when the drying temperature of filter papers is 110 ℃ and the drying time is 15 minutes, the repeatability of the test can be improved and the test time can be reduced, providing certain reference value for measuring NSDD.
作者
燕宝峰
车传强
赵建坤
高思明
曹彬
赵晨龙
王黎明
YAN Baofeng;CHE Chuanqiang;ZHAO Jiankun;GAO Siming;CAO Bin;ZHAO Chenlong;WANG Liming(Inner Mongolia Electric Power Research Institute,Hohhot 010020,China;Tsinghua Shenzhen International Graduate School,Shenzhen 518000,China)
出处
《电瓷避雷器》
CAS
北大核心
2022年第5期172-177,共6页
Insulators and Surge Arresters
基金
国家自然科学基金(编号:52007095)。
关键词
绝缘子污秽
灰密
测量方法
影响因素
insulator contamination
non-soluble deposit density(NSDD)
measurement method
influencing factors
