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 ...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.展开更多
Y2000-62008-213 0017998开关直流电源计算机辅助模拟的改进=Improvementsin computer aided modeling of switching DC powersources[会,英]/Maranesi,P.& Pogliana,F.//1998IEEE Workshop on Computer in Power Electronics.—213...Y2000-62008-213 0017998开关直流电源计算机辅助模拟的改进=Improvementsin computer aided modeling of switching DC powersources[会,英]/Maranesi,P.& Pogliana,F.//1998IEEE Workshop on Computer in Power Electronics.—213～217(PC)Y2000-62021-40 0017999采用注水容器的水树状阻滞交叉链接聚乙烯(TRXLPE)绝缘电缆的加速老化=Accelerated aging展开更多
基金Electric Ship Research De- velopment and Consortium (ESRDC) for providing financial support for the research work
文摘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.
文摘Y2000-62008-213 0017998开关直流电源计算机辅助模拟的改进=Improvementsin computer aided modeling of switching DC powersources[会,英]/Maranesi,P.& Pogliana,F.//1998IEEE Workshop on Computer in Power Electronics.—213～217(PC)Y2000-62021-40 0017999采用注水容器的水树状阻滞交叉链接聚乙烯(TRXLPE)绝缘电缆的加速老化=Accelerated aging
