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http://dx.doi.org/10.5207/JIEIE.2002.16.6.137

Development of Contact System in 460[V]/225[A]/50[kA] Molded Case Circuit Breaker  

최영길 (한국전기연구원 전력전자연구그룹)
구태근 (한국전기연구원)
이광식 (영남대학 공대 전자정보공학부)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.16, no.6, 2002 , pp. 137-144 More about this Journal
Abstract
Low voltage circuit breakers which interrupt rapidly and raise the reliability of power supply are widely used in power distribution systems. In the paper, it has been investigated how much interrupting capability is improved by correcting the shape of the contact system in molded case circuit breaker(below MCCB), especially arc runner. Prior to the interrupting testing, it is necessary for the optimum design to analyze electromagnetic forces on the contact system generated by current and flux density. This paper presents both our computational analysis and test results on contact system in MCCB.
Keywords
MCCB; Molded case circuit breaker; Contact system;
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