Abstract：In this paper, the siloxane injecting rejuvenation of water tree aged XLPE cables is discussed. With water-needle method and accelerated aging experiment, water tree is formed inside XLPE layer. One group of the samples is injected with siloxane for rejuvenation. The insulation performance and the breakdown voltage are significantly greater than aged samples. The water tree is observed by optical microscope in aged samples, meanwhile, water tree filled by organic compounds is observed in rejuvenated samples. Infrared spectrum (IR) analyses proved that the siloxane is injected to the XLPE layer, and uniform distributed. Furthermore, IR analyses showed that moisture and hydrophilic groups in XLPE were reacted with siloxane. As a result, the insulation performance of XLPE cables was enhanced by the siloxane injection technology.
陶霰韬, 周凯, 刘凡, 杨琳, 陶文彪, 杨滴, 杨明亮. XLPE电缆水树缺陷的硅氧烷注入式绝缘修复研究[J]. 电工技术学报, 2013, 28(9): 268-273.
Tao Xiantao, Zhou Kai, Liu Fan, Yang Lin, Tao Wenbiao, Yang Di, Yang Mingliang. The Rejuvenation of Water Tree Aged XLPE Cables Based on Siloxane Injecting Technique. Transactions of China Electrotechnical Society, 2013, 28(9): 268-273.
[1] Ross R, Inception and propagation mechanisms of water treeing[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 1998, 12(6): 660-680. [2] Boggs S, Xu J. Water treeing-filled versus unfilled cable insulation[J]. IEEE Electrical Insulation Magazine, 2001, 17(1): 23-29. [3] 党智敏, 亢婕, 屠德民. 新型抗水树聚乙烯绝缘电缆[J]. 中国电机工程学报, 2002, 22(1): 8-11. [4] Hampton N, Hartlei R, Lennartsson H, et al. Long-life XLPE insulated power cable[C]. Jicable07, 2007: 350-356. [5] Moreau E, Mayoux C, The structural characteristics of water trees in power cables and laboratory specimens [J]. IEEE Transactions on Electrical Insulation, 1993, 28(1): 54-56. [6] Hvidsten S, lldstad E, Sletbak J. Understanding water treeing mechanisms in the development of diagnostic test methods[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 1998, 5(5): 754-759. [7] ROSS R, Smit J J. Composition and growth of water trees in XLPE[J], IEEE Transactions on Electrical Insulation 1992, 27(6): 519-531. [8] Bertini G J, Chatterton W J. Dielectric enhancement technology[J]. IEEE Electrical Insulation Magazine 1994, 10(2): 17-22. [9] Bertini G J. New Developments in solid dielectric life extension technology[C]. IEEE International Sympo- sium on Electrical Insulation, 2004. [10] Bertini G J, Vincent G A. Cable rejuvenation mech- anisms[C]. ICC Subcommittee, 14, 2006. [11] Stagi W R. Cable injection technology[C]. IEEE Latin America Conference, 2006. [12] Pélissou S, Underground medium-voltage cable rejuvenation-part I: laboratory tests on cables[J]. IEEE Transactions on Power Delivery, 2011, 26(4): 2324-2332. [13] 朱晓辉. 修复水树老化XLPE电缆的修复液注入技术[J]. 高电压技术, 2004, 30(S1): 16-18. [14] 朱晓辉, 郭象吉. 老化中压XLPE电缆修复新技术研究[J]. 电力设备, 2007, 8(5): 42-44. [15] 周凯, 陶霰韬, 赵威, 等. 在水树通道内生成纳米TiO2的电缆修复方法及其绝缘增强机制研究[J]. 中国电机工程学报, 2013, 33(7): 202-210. [16] 周凯, 赵威, 管顺刚, 等. 硅氧烷对水树老化后的交联聚乙烯电缆的修复研究[J]. 电工技术学报, 2013, 28(1): 29-35. [17] Filippini J C, Meyer C T. Water treeing test using the water needle method[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 1988, 23(2): 275-278. [18] 郑晓泉, 王国红, 屠德民. 聚乙烯水树枝的非线性特性研究[J]. 绝缘材料, 2001 (5): 32-34. [19] 文习山, 豆朋. 水树对XLPE电缆绝缘电阻与直流分量的影响[J]. 武汉大学学报(工学版). 2005, 38(3): 113-115. [20] 孟令芝. 有机波谱分析[M]. 武汉:武汉大学出版社, 2003. [21] 陈洁, 宋浩. 有机波谱分析[M]. 北京:北京理工大学出版社, 2008. [22] 冯慈璋, 马西奎. 工程电磁场导论[M]. 北京: 高等教育出版社, 2008.
2013, Vol. 28 
