基于MATLAB 6.5的泄漏电流特征量分析  

Study on Characteristic Quantity of Leakage Current Based on MATLAB6.5

作　　者：常彩霞[1] 林辉[1] 

机构地区：[1]西北工业大学自动化学院,西安710072

出　　处：《绝缘材料》2007年第5期67-69,共3页Insulating Materials

摘　　要：分析了表征污秽绝缘子运行状态的特征量,比较了各特征量的特点及其适用场所,总结了影响泄漏电流的特征量,在人工污秽试验的基础上,讨论了泄漏电流在闪络过程中的特征,得出了泄漏电流与其基本特征量之间的关系,通过希尔伯特变换的方法提取了泄漏电流包络线,分析了电弧延伸在污闪发展过程中对泄漏电流的影响。The characteristic quantity of polluted insulator＇ s operation state was analyzed. The differ- ences between each characteristic were studied, and the factors, including circumstance factors, of influencing LC significantly were found. The characteristics of leakage current （LC） were studied based on artificial contamination test, which obtained the relationship between leakage current and the influenced factors. The envelope curve of leakage current was drawn from Hilbert transformation ap- proach.

关 键 词：泄漏电流 污秽试验 闪络 特征量 包络线 电弧 

分 类 号：TM216[一般工业技术—材料科学与工程] TM934.31[电气工程—电工理论与新技术]