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가속열화시험을 통한 HVDC 전력기기용 고분자 절연재료의 표면 특성 연구
이헌경(Heon-Gyeong Lee),장경민(Kyeong-Min Jang),알샤마리 아흐메드 트라이힙 아(Alshammari Ahmed Traiheeb A),김진규(Jin-Gyu Kim) 대한전기학회 2019 전기학회논문지 Vol.68 No.8
At present, new insulation design techniques in DC environment and research for improvement of insulation performance are needed for research is being conducted to apply the HVDC transmission system. Understanding the change of the surface characteristics of the polymer insulation material is useful for analyzing the mechanism of the insulation material for application to electric power equipment. In the present paper, the surface characteristics of the polymer insulation materials used in HVDC power equipment have been experimentally investigated. Based on the measured activation energy, the accelerated deterioration time was selected and the accelerated deterioration test was conducted. The surface resistivity and the contact angle were measured to understand the surface characteristics of the deteriorated insulation materials and compared with those before the deterioration.