Discharge Light and Carbonization Distribution Characteristics at XLPE-Silicon Rubber Interface with Silicon-grease in Tracking Failure Test

摘要：

Imaging processing method was adopted to investigate the effect of silicon grease on tracking failure of the XLPE-silicon rubber interface by analyzing the distribution characteristics of discharge light and carbonization at the interface. Three interfaces were set up by pressing together a slice of XLPE and a slice of transparent silicon rubber. One filled silicon grease and the other partly filled the grease. As comparison, the third one filled on grease. High voltage (AC 50 Hz) was applied on a pair of flat-round electrodes sandwiched at the interface with their insulation distance of 5 mm. When the test voltage was raised to a certain value, discharge occurred and discharge light appeared and carbonization accumulated at the interface. The discharge light from discharge to the failure and the carbonization after the failure was recorded with a digital video recorder and then the images were analyzed with image processing method. Obtained results show that silicon grease at the interface weakens the transportation of charge and enhances the interfacial breakdown strength. However, interfacial discharge and tracking failure easily occur once discharge appears. Image processing method is helpful to understand the tracking failure process and mechanism of XLPE cable joint

关键词： XLPE silicon rubber cable joint interface: silicon-grease discharge light carbonization tracking failur.

作者: L. Gu W. Liu S. L. Lei S. B. Wang Y. Y. Deng

作者单位: Department of Electrical Engineering. School of Electrical Engineering and Automation Chongqing University of Technology, Chongqing 400054, China

会议类型: 国际会议

会议名称: Third International Conference on Digital Image Processing(ICDIP 2011)(第三届数字图像处理国际会议)

会议地点: 成都

会议语种:英文

页码: 356-361

在线出版日期: 2011-04-15（万方平台首次上网日期，不代表论文的发表时间）