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A Study On The Arc Resistance of $SF_6$ Gas Circuit Breaker  

Chong, Jin-Kyo (한국전기연구원)
Lee, Woo-Young (한국전기연구원)
Kim, Gyu-Tak (창원대학교 전기공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.56, no.9, 2007 , pp. 1566-1570 More about this Journal
Abstract
[ $SF_6$ ] gas circuit breakers are widely used for short circuit current interruption in EHV(Extra High Voltage) or UHV(Ultra High Voltage) power systems. To develop $SF_6$ gas circuit breakers, the arc resistance value is necessary to compare experimental results to numerical ones. The arc resistance value can be obtained from a breaking test with a $SF_6$ gas circuit breaker. The direct testing or synthetic testing facility is widely used to verify the breaking ability for $SF_6$ gas circuit breakers. We employed the simplified synthetic testing facility to test a $SF_6$ gas circuit breaker prototype. The arc resistance characteristic was measured and calculated under the various experimental conditions. This arc resistance value can be used for verifying the numerical results from arc simulation in a circuit breakers.
Keywords
$SF_6$ 가스차단기;간이 합성시험설비;시험전류;주입전류;아크저항;
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  • Reference
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