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

作　　者：R.Sarathi 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》2004年第5期2514-2520,共7页等离子体科学和技术（英文版）

摘　　要：In the present work, tracking phenomenon in Silicone rubber material has beenstudied under AC and DC voltage, with ammonium chloride as a contaminant. It is observed that thetracking is more severe under the DC voltages. The tracking time is less under negative DC comparedto the positive DC voltage. The tracking mechanism is explained in detail. The leakage currentduring the tracking studies was as measured and the moving average technique was adopted tounderstand the trend in current flow. The leakage current magnitude is high with thermally agedspecimens compared to the virgin specimen, irrespective of the type of applied voltage. It isrealized that the tracking time and the leakage current magnitude shows an inverse relationship.In the present work, tracking phenomenon in Silicone rubber material has beenstudied under AC and DC voltage, with ammonium chloride as a contaminant. It is observed that thetracking is more severe under the DC voltages. The tracking time is less under negative DC comparedto the positive DC voltage. The tracking mechanism is explained in detail. The leakage currentduring the tracking studies was as measured and the moving average technique was adopted tounderstand the trend in current flow. The leakage current magnitude is high with thermally agedspecimens compared to the virgin specimen, irrespective of the type of applied voltage. It isrealized that the tracking time and the leakage current magnitude shows an inverse relationship.

关 键 词：discharges POLYMERS silicone rubber TRACKING moving average technique leakage current measurement 

分 类 号：X50[环境科学与工程—环境工程]