新型绕组电缆接地特性的研究  

The Grounding Characteristic of A New Type of Winding Cable

作　　者：李岚[1] 

机构地区：[1]中国石油大学,山东东营257062

出　　处：《绝缘材料》2009年第4期40-43,共4页Insulating Materials

基　　金："十五"国家863计划重大专项资助项目(2005AA505101-628)

摘　　要：简述了新型具有半导电层的外层接地绕组电缆的应用,介绍了绕组电缆及其接地系统的结构,分析了绕组电缆接地电流的分布规律,研究了接地电流分布对绕组电缆温升及电缆性能的影响。结果表明,采取增加接地面积、改善接地条件、降低接地电流密度和调整端部绕组电缆外半导电层电阻率等措施,可保证绕组电缆系统的可靠运行。In this paper,the application of a new type of cable with outer semi-conductive layer was introduced,and the structure of the winding cable and its grounding system were presented.Then the distribution rules of the grounding current were analyzed deeply,and the influence of the grounding current distribution on the temperature rise of winding cable was researched.At last,in combination with other conditions,the measures of controlling the temperature rise of end winding were given.

关 键 词：电缆 接地 导电特性 

分 类 号：TM206[一般工业技术—材料科学与工程] TM247[电气工程—电工理论与新技术]