en High Voltage Engineering High Voltage Engineering Research Paper Research Paper <p>This paper introduces the indicators for surge arrester condition assessment based on the leakage current analysis. Maximum amplitude of fundamental harmonic of the resistive leakage current, maximum amplitude of third harmonic of the resistive leakage current and maximum amplitude of fundamental harmonic of the capacitive leakage current were used as indicators for surge arrester condition monitoring. Also, the effects of operating voltage fluctuation, third harmonic of voltage, overvoltage and surge arrester aging on these indicators were studied. Then, obtained data are applied to the multi-layer support vector machine for recognizing of surge arrester conditions. Obtained results show that introduced indicators have the high ability for evaluation of surge arrester conditions.</p> <p style="text-align: left;"><img alt="AWT IMAGE" src="./files/site1/images/10.png" style="width: 250px; height: 250px;" ></p> Metal Oxide Surge Arrester,Leakage Current,Condition Monitoring,Indicator,Multi-Layer SVM, 354 362 http://ijeee.iust.ac.ir/browse.php?a_code=A-10-789-4&slc_lang=en&sid=1 M Khodsuz mirzaie@nit.ac.ir 180031947532846003755 180031947532846003755 No Department of Electrical and Computer M Mirzaie m.khodsoz@stu.nit.ac.ir 180031947532846003756 180031947532846003756 Yes Department of Electrical and Computer