Electrical Aging Phenomena of Power Cables Aged by Switching Impulses

查看全文 作　　者：L. Cao A. Zanwar S. [1]Grzybowski

机构地区：[1]High Voltage Laboratory Electrical and Computer Engineering, Mississippi State University

出　　处：《高电压技术》索引2013年第39卷第8期,共8页

基　　金：Electric Ship Research De- velopment and Consortium (ESRDC) for providing financial support for the research work 摘　　要：Due to the insufficient information regarding the aging phenomenon of cables caused by switching impulses, we aged 15 kV XLPE and EPR cable samples by 10 000 switching impulses in experiments and tested them. Plus in order to compare the aging phenome- non under multi-stress conditions, additional EPR cable samples were aged by rated AC voltage and current with switching impulses superimposed. We used measurements of partial discharge parameters to monitor the cables’ conditions during their aging process, and the AC breakdown voltages measurement to evaluate the cables after aging. Moreover, the Fourier transform infrared (FTIR) spectroscopy measurements revealed the changes of insulation materials after aging. The measurement results confirm that the accelerated aging of cable samples had taken place. The impacts of each individual aging factor are shown through the selected measurements and comparison. The study also helps to assess the reliability of the XLPE and EPR cables under similar condition while serving in power systems. 关键词：老化现象开关脉冲交联聚乙烯电缆电源线交联聚乙烯绝缘电力系统可靠性电气交流击穿电压

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Electrical Aging Phenomena of Power Cables Aged by Switching Impulses

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