变电所进线单芯35kV交联聚乙烯绝缘电缆护层过电压的计算和保护  

Calculation and protection of the sheath overvoltage of 35 kV single conductor XLPE insulated cable used as inlet wire of substation

作　　者：王亚兵 

机构地区：[1]浙江省玉环县供电局,浙江玉环317600

出　　处：《电线电缆》2004年第2期35-39,共5页Wire & Cable

摘　　要：阐述了 35 k V单芯交联聚乙烯 (XL PE)绝缘电缆作为变电所进线时 ,电缆护层应采取保护措施 ,以及在此种保护方式条件下 ,对冲击电压产生的护层过电压和系统短路产生的工频过电压进行了分析和计算 ,并对护层过电压保护器作了简要介绍。Measures shall be taken to protect the sheath of the 35 kV single conductor XLPE insulated cable used as inlet wire of substation. The overvoltage of the sheath caused by the pulse voltage under this mode of protection and the commercial frequency overvoltage during short circuit of the system were analized and calculated. The overvoltage protector of the sheath is presented briefly.

关 键 词：变电所 单芯电缆 35kV交联聚乙烯绝缘电缆 电缆护层 过电压 计算 电力电缆 

分 类 号：TM63[电气工程—电力系统及自动化] TM247.1[一般工业技术—材料科学与工程]