Investigations of Tracking Phenomena in Silicone Rubber Using Moving Average Current Technique

查看全文 作　　者：[1]R.Sarathi;[1]S.Chandrasekar 机构地区：[1]Department of Electrical Engineering Indian Institute of Technology Madras, Chennai-600 036, India,Department of Electrical Engineering Indian Institute of Technology Madras, Chennai-600 036, India 出　　处：《Plasma Science and Technology》索引2004年第6卷第5期,共7页 摘　　要：In the present work, tracking phenomenon in Silicone rubber material has been studied under AC and DC voltage, with ammonium chloride as a contaminant. It is observed that the tracking is more severe under the DC voltages. The tracking time is less under negative DC compared to the positive DC voltage. The tracking mechanism is explained in detail. The leakage current during the tracking studies was as measured and the moving average technique was adopted to understand the trend in current flow. The leakage current magnitude is high with thermally aged specimens compared to the virgin specimen, irrespective of the type of applied voltage. It is realized that the tracking time and the leakage current magnitude shows an inverse relationship. 关 键 词：损耗电流测量 硅酮橡胶 移动平均技术 直流电压 跟踪技术 聚合材料