绝缘子污秽度等级判断新方法  

A New Method for the Insulator Pollution Grade Judgement

作　　者：陈小黎[1] 陆培钧[1] 吴沃生[1] 唐嘉[1] 

机构地区：[1]广东电网公司佛山供电局,广东佛山528000

出　　处：《南方电网技术》2009年第2期53-55,共3页Southern Power System Technology

摘　　要：设计了一种可代替人工判断的绝缘子污秽等级辨识方法,并基于新标准IEC60815-1:2001给出的盐密、灰密与现场污秽度的对应关系,开发一个绝缘子污秽度等级判定程序,利用采样点的盐密值和灰密值,以最小二乘法拟合污秽等级的分界曲线,来确定绝缘子的污秽等级。实践证明,该方法不仅提高了工作效率,而且准确性比人工判断要好。A new method for the insulator pollution grade judgement is designed to replace the manual judgement. A program for this method is developed based on the new standard of IEC 60815-1 ： 2001 that indicates the relationship between the insulator pollution grade and the equivalent salt / non-soluble deposit densit （ESDD/NSDD） data. With the program the pollution grade corresponding to the NSDD/ESDD data from sampling site is determined by fitting the division curve of pollution grades with least-squares procedure. Practice validated that this method works efficiently, and has better accuracy than the manual judgement.

关 键 词：盐密 灰密 污秽等级 最小二乘法 曲线拟合 

分 类 号：TM855[电气工程—高电压与绝缘技术]