@inproceedings{48c1ed57c3144a6b8338c19689a24601,
title = "The degradation of 10kV XLPE cable accessories under switching impulses",
abstract = "To improve the reliability of power supply and meet the requirement of urban landscaping, XLPE cable has been widely used with the development of city power grid because of its obvious advantages. The rated overvoltage withstanding ability of 10kV XLPE cable accessories are much higher than the switching overvoltage caused by reclosing. However, after routine tests and maintenance, multiple accidents of the cable accessories occur during reclosing. In order to clarify the influence of switching impulse on the degradation of cable accessories, in this paper, switching impulses of 250/2500μs with 50 kV were applied on cable accessories with misplacing stress defect and knife incision defect. The partial discharge inception voltage (PDIV) and partial discharge extinction voltage (PDEV) of these degraded samples were recorded. Results show that the PDIV and PDEV of cable accessories decrease with the time increasing of applied switching impulses. Cable accessories with misplacing stress defect had a worse PD behavior. The multiple switching overvoltage accelerate the degradation of cable accessory insulation. Test conclusions can contribute to evaluate the life-time of cable and determine the retire time.",
keywords = "XLPE cable, degradation, partial discharge, switching impulses",
author = "Xu Long and Jian Liu and Xuefeng Zhao and Jiaming Li and Xi Chen and Aixuan Zhao and Junbo Deng and Guanjun Zhang",
note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 12th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2018 ; Conference date: 20-05-2018 Through 24-05-2018",
year = "2018",
month = jun,
day = "29",
doi = "10.1109/ICPADM.2018.8401055",
language = "英语",
series = "Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "463--466",
booktitle = "ICPADM 2018 - 12th International Conference on the Properties and Applications of Dielectric Materials",
}