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조현길(Hyun-Kil Cho),이은웅(Eung-Woong Lee),김준호(Jun-Ho Kim),정종호(Jong-Ho Jeong),김일중(Il-Jung Kim) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
To investigate a arc behavior when the flux density linking arc current is different, two kinds of models having the different flux density with each other are proposed. Calculations of the flux density and the electromagnetic force acting on arc column using finite element method is described in this paper. And, arc behavior photographs by the high speed camera are illustrated at breaking DC 100V, 100A on the resistance load. So, the arc driving forces are compared with according to the arc types.
趙顯吉(Hyun-Kil Cho),李殷雄(Eun-Woong Lee) 대한전기학회 2006 전기학회논문지 B Vol.55 No.3
We derived a theory of increasing electromagnetic force which acts on arc column for reducing arcing time between electric contacts. A simulation method of arc velocity is presented by calculating blowout force using 3D FEM and drag force acting on arc column. This paper proposes 3 types arc extinguish chamber of different flux path and presents the specific electromagnetic force and arc velocity of each model by the analysis. The result of analysis and experimental proposes the prediction method of arc time when all conditions are same except external magnetic field.