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±200kV급 HVDC 고분자애자 개발을 위한 표면개질된 Nano ATH 및 Nano Silica 혼합에따른 ±HVDC 절연파괴 및 기계적특성
전정혁(Jeong-Hyuk Jeon),김응균(Eung-Kyun Kim),민상기(Sang-Gi Min),이상민(Sang-Min Lee),이창엽(Chang-Yeop Lee),전수영(Su-Young Jeon),황주연(Ju-Yeon Hwang),김병철(Byung-Chul Kim),표판식(Pan-Sik Pyo),ALISHER,박재준(Jae-Jun Park) 대한전기학회 2023 대한전기학회 학술대회 논문집 Vol.2023 No.7
The surface of fumed nano-silica(nano-SiO2) was treated with alkyl silazane to change from hydrophilic to hydrophobic. Aluminum Trihydroxide(nano-ATH) was surface treated with vinyl silazane to improve electrical properties(high voltage direct current [HVDC] breakdown strength and tracking resistance). A kneader was prepared by mixing surface-modified nano-SiO2 and surface-modified nano-ATH with liquid silicon. and the effect on electrical properties of surface-modified nano-ATH was studied for application to heavy electrical equipment. Surface modification was confirmed through thermogravimetric analysis and contact angle analysis. As the nano-ATH content increased(±), HVDC breakdown strength and tracking resistance increased significantly. As the nano-ATH content increased, the leakage current that occurred initially was delayed and the current intensity decreased. The amount of erosion also decreased.
±200kV급 HVDC 고분자애자 개발을 위한 표면개질된 Nano ATH 및 Nano Silica 혼합에따른 ±HVDC 절연파괴 및 기계적특성
전정혁(Jeong-Hyuk Jeon),김응균(Eung-Kyun Kim),민상기(Sang-Gi Min),이상민(Sang-Min Lee),이창엽(Chang-Yeop Lee),전수영(Su-Young Jeon),황주연(Ju-Yeon Hwang),김병철(Byung-Chul Kim),표판식(Pan-Sik Pyo),ALISHER,박재준(Jae-Jun Park) 대한전기학회 2023 대한전기학회 학술대회 논문집 Vol.2023 No.7
The surface of fumed nano-silica(nano-SiO2) was treated with alkyl silazane to change from hydrophilic to hydrophobic. Aluminum Trihydroxide(nano-ATH) was surface treated with vinyl silazane to improve electrical properties(high voltage direct current [HVDC] breakdown strength and tracking resistance). A kneader was prepared by mixing surface-modified nano-SiO2 and surface-modified nano-ATH with liquid silicon. and the effect on electrical properties of surface-modified nano-ATH was studied for application to heavy electrical equipment. Surface modification was confirmed through thermogravimetric analysis and contact angle analysis. As the nano-ATH content increased(±), HVDC breakdown strength and tracking resistance increased significantly. As the nano-ATH content increased, the leakage current that occurred initially was delayed and the current intensity decreased. The amount of erosion also decreased.
김준수,전연수,전정혁,조재영,Kim, Joon Soo,Jun, Yun-Su,Jun, Jung Hyuk,Cho, Jai Young 한국자원리싸이클링학회 2021 資源 리싸이클링 Vol.30 No.3
Currently, there is a drain of natural resources, environmental contamination, generation of waste, and problems of the earth's climate by CO<sub>2</sub> emissions according to mass production and overconsumption of mankind. It is effectuated by a linear economy that involves manufacturing products, use, and waste repeatedly; there is no guarantee in the lives of humans and the future of the globe if we do not find alternative proposals. For a sustainable developing society and to overcome the present global problems, we must successively change to a circular economy from a linear economy. The circular economy has the concept of an extended value chain in recovery, reuse, remanufacturing, and recycling, instead of discarding after the use of manufactured goods. New business models of circular economy have been realized to save the earth ecology and sustainable developing society in serious recognition of the linear economy system. New business models are established by creating a vision and developing a program, and by renovating technology, law, and financial support through a worldwide government policy.