Lifetime Estimation Based on Surface Degradation and Characterization of HTV Silicone-rubber Based Composites for HVAC and HVDC Transmission  

作　　者：Rahmat Ullah Muhammad Akbar 

机构地区：[1]Faculty of Electrical Engineering,GIK Institute of Engineering Sciences and Tecnology,Topi,23460 Pakistan

出　　处：《CSEE Journal of Power and Energy Systems》2023年第2期751-758,共8页中国电机工程学会电力与能源系统学报（英文）

摘　　要：In this paper,six different types of silicone rubberbased composites were investigated for applications in high voltage insulation through multi-stress accelerated aging conducted for a period of 5000 h both under AC and DC voltages.The main goal of this study was lifetime prediction of HTV-SR based composites at a typical multi-stress aging conditions.Several diagnostic techniques such as hydrophobicity assessment,leakage current measurement and FTIR were incorporated to assess the aging.As an outcome of this investigation,all the five hybrid samples were found as quite resistant to aging while the neat sample was comparatively,less resistant to the aging.Overall,among the studied samples,TS2 and TS4 appeared to have shown the highest resistance to aging giving a service life of 43.2 and 42 years,respectively under AC aging.Under DC stress the order of merit of investigated samples was identical to that of AC stress but having marginally less life spans.

关 键 词：ATH hydrophobicity classification leakage current life time prediction multi-stress accelerated aging SILICA 

分 类 号：TM721.1[电气工程—电力系统及自动化] TP181[自动化与计算机技术—控制理论与控制工程]