高压交联聚乙烯电力电缆水树枝缺陷在线监测系统的研制  

Research and development of HV XLPE cable water-tree fault on-line monitoring

作　　者：方针[1] 陆佳政[1] 张红先[1] 李波[1] 金园[2] 

机构地区：[1]湖南省电力公司试验研究院,湖南长沙410007 [2]湖南省长沙电业局,湖南长沙410015

出　　处：《湖南电力》2007年第6期1-3,8,共4页Hunan Electric Power

摘　　要：文中提出"非谐振"叠加的方法,实现了电力电缆的在线监测。该方法通过在电缆的绝缘层上叠加1个101H z的交流信号,再检测电缆绝缘屏蔽层上1H z的特征信号。现场应用表明,系统分析诊断正确,运行稳定可靠。A non-resonant superposition method was presented to realize power cable on-line monitoring. A 101Hz AC signal was added on the insulator layer of cables and a 1Hz characteristic signal on insulator shielding layer was detected. Practical application indicated that monitoring system was stable and diagnosed correctly.

关 键 词：交联聚乙烯 电力电缆 在线监测 

分 类 号：TM247[一般工业技术—材料科学与工程] TM863[电气工程—电工理论与新技术]