Diagnosing Method for Water Tree Aging on XLPE Cable Based on Continuous PDC Test Method

被引：0

作者：

Lin S. ^{[1
]}

Zhou K. ^{[1
]}

Yin Y. ^{[1
]}

Li M. ^{[2
]}

Gong W. ^{[1
]}

机构：

[1] College of Electricwsal Engineering, Sichuan University, Chengdu

[2] Skill Training Center of Sichuan Electric Power Company of State Grid, Chengdu

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2020年 / 40卷 / 20期

基金：

中国国家自然科学基金;

关键词：

Creep property; Polarization and depolarization current method; Water tree aging; XLPE cable;

D O I：

10.13334/j.0258-8013.pcsee.200954

中图分类号：

学科分类号：

摘要：

To recognize the XLPE cable with water tree, this paper presented a diagnosing method based on the continuous polarization and depolarization current (PDC) tests. The microstructure and mechanical creep property of water trees were utilized in this method. Firstly, the current through the water tree region will gradually increase during the continuous PDC tests due to the deformation caused by the Maxwell stress. Then a simulation of water tree region was performed to verify the increase in current. Finally, the cable samples with different aging forms (water tree aging, thermal aging and irradiated aging) were tested by continuous PDC tests and the change of conductivity was analyzed. The results indicate that the cable samples with water tree aging show a significant increase in conductivity with the increase in number of PDC tests. The average length of water tree was related to the conductivity. The longer the length of the water tree branch inside the sample, the more the conductivity increased. The conductivity of samples without water tree aging hardly changed during the test. This method can determine whether there are water trees in a XLPE cable by continuous PDC tests and analyzing the changes in its conductivity. © 2020 Chin. Soc. for Elec. Eng.

引用

页码：6764 / 6772

页数：8

共 27 条

[1]

Zhang Zhenpeng, Jin Jianwei, Liu Ji, Et al., Experiment and analysis on temperature vibration aging of XLPE cable line, High Voltage Technology, 44, 11, pp. 3707-3712, (2018)

[2]

Shen Zuojia, Luo Zhiyi, Zhan Weipeng, Et al., Analysis on thermal aging behaviors of XLPE cable insulation based on trap parameters and relaxation process, Proceedings of the CSEE, 36, 19, pp. 5382-5388, (2016)

[3]

Seguchi T, Tamura K, Kudoh H, Et al., Degradation of cable insulation material by accelerated thermal radiation combined ageing, IEEE Transactions on Dielectrics and Electrical Insulation, 22, 6, pp. 3197-3206, (2015)

[4]

Zheng Xiaoquan, Wang Jinfeng, Li Yanxiong, Transformation of electrical tree from water tree degradation in XLPE, Proceedings of the CSEE, 33, 22, pp. 166-174, (2013)

[5]

Dang Zhimin, Kang Jie, Tu Demin, Study on new cable material of resisting water treeing in polyethylene, Proceedings of the CSEE, 22, 1, pp. 8-11, (2002)

[6]

Wang J, Zheng X, Li Y, Et al., The influence of temperature on water treeing in polyethylene, IEEE Transactions on Dielectrics and Electrical Insulation, 20, 2, pp. 544-551, (2013)

[7]

Kurihara T, Takahashi T, Homma H, Et al., Oxidation of cross-linked polyethylene due to radiation-thermal deterioration, IEEE Transactions on Dielectrics and Electrical Insulation, 18, 3, pp. 878-887, (2011)

[8]

Shimada A, Sugimoto M, Kudoh H, Et al., Degradation distribution in insulation materials of cables by accelerated thermal and radiation ageing, IEEE Transactions on Dielectrics and Electrical Insulation, 20, 6, pp. 2107-2116, (2013)

[9]

Shimada A, Sugimoto M, Kudoh H, Et al., Radiation ageing technique for cable life evaluation of nuclear power plant, IEEE Transactions on Dielectrics and Electrical Insulation, 19, 5, pp. 1768-1773, (2012)

[10]

Huang Ming, Zhou Kai, Yang Di, Et al., Effect of on-line rejuvenation on water tree propagation in XLPE cables, Transactions of China Electro Technical Society, 31, 21, pp. 176-182, (2016)

← 1 2 3 →