FANG Zhen1, LU Jia-zheng1, ZHANG Hong-xian1, et al. Research and development of HV XLPE cable water-tree fault on-line monitoring[J]. 2007, (6): 1-3+8.
FANG Zhen1, LU Jia-zheng1, ZHANG Hong-xian1, et al. Research and development of HV XLPE cable water-tree fault on-line monitoring[J]. 2007, (6): 1-3+8.DOI:
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
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。
Abstract
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.