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The Characteristic Study for Small Current Breaking of High Speed DC Circuit Breaker  

Min Byung-Hoon (서울메트로 기술본부)
Jang Woo-Jin (서울산업대 전기공학과)
Ko In-Suk (인텍전기전자(주))
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.55, no.8, 2006 , pp. 396-402 More about this Journal
Abstract
Even the case DC circuit Breaker have good quality for interruption of high current like heavy load current, short-circuit current, the verification for small current breaking capability of circuit breaker should be performed. It comes from the reason DC small current breaking failure can be lead to break out second heavy fault condition and in the long run substation shutdown. In this paper, we can find the characteristics of DC small current and international test standard discription about small current breaking and one of the proper solution to get over it.
Keywords
HSCB(High Speed Circuit Breaker); DC Circuit Breaker; Subway Station Breaker;
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