标题：Ultra-Low Frequency Dielectric Loss Detection and Aging State Evaluation of 10kV XLPE Cable
作者：Song, Pengxian; Liu, Jiping; Wang, Haoming; Meng, Fansong; Fang, Shengchen; Zhang, Yuqi
作者机构：[Song, Pengxian; Liu, Jiping; Wang, Haoming; Fang, Shengchen] State Grid Tianjin Elect Power Res Inst, Tianjin 300000, Peoples R China.; [Meng, Fans 更多
会议名称：China International Conference on Electricity Distribution (CICED)
会议日期：SEP 17-19, 2018
来源：2018 CHINA INTERNATIONAL CONFERENCE ON ELECTRICITY DISTRIBUTION (CICED)
关键词：ultra-low frequency; dielectric loss; water tree deterioration; cross; linked polyethylene
摘要：In this paper, the effectiveness of ultra-low frequency dielectric loss in evaluating the insulation aging state of XLPE cables is described. The ultra-low frequency dielectric loss of 21 10kV cables in Tianjin area was measured. On the basis of the analysis of the relationship between the ultra-low frequency dielectric loss and the aging of insulated water branch aging, according the International Society of Electrical Engineers IEEE400.2-2013 IEEE Guide for Field Testing of Shielded Power Cable Systems Using Very Low Frequency(VLF)(less than 1Hz), the test date are analyzed. The results are shown that 9 of the 21 cables are in a state of need for further test or maintenance. The longer the service time, the more cable failures, the more serious the aging degree. The ultra-low frequency dielectric loss can effectively evaluate the insulation aging state of XLPE cables, which is of great significance for guiding the reconstruction of the distribution network cable in Tianjin.