Abstract
This paper reports estimates of leakage currents based on thermal images (infrared) of polymer isolators using color detection methods. In this study, laboratory pollution performance tests using sodium chloride and kaolin were carried out in accordance with the IEC 60507 standard with AC high voltage at 18kV. The severity of pollution is controlled and indicated by ESDD values of heavy pollutants, conditions of relative humidity controlled at 70RH and temperature of 260C. The color detection method is used to obtain the color percentage of thermal images. The ANFIS method predicts leakage currents from contaminated polymer insulators with input from the percentage of thermal image color. The results show that the leakage current can be estimated based on infrared image analysis with a color detection method, where each current leakage level correlates with red, yellow and blue.
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