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The Influence of Transverse Magnetic Field for Shortening DC Arc Time  

Lee, Eun-Woong (충남대 공대)
Cho, Hyun-Kil (충남대 공대)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.55, no.3, 2006 , pp. 146-154 More about this Journal
Abstract
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.
Keywords
직류 개폐기;직교 자계;아크 소호 원리;아크 형성과정;직류 아크 소호구조;아크 소호시간 단축;
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