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http://dx.doi.org/10.5207/JIEIE.2010.24.12.078

A Safety Improvement of Low Voltage Circuit-breakers through Analysis of Instantaneous Trip Characteristics of 30AF Circuit-Breakers  

Kim, Ju-Chul (상도전기통신(주) 부설연구소)
Lim, Jeong-Kyun ((주)준영이엔씨)
Lee, Sang-Joong (서울과학기술대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.24, no.12, 2010 , pp. 78-83 More about this Journal
Abstract
The domestic 30AFs that are currently being produced show many problems due to different instantaneous trip characteristics in case of short-circuit. The troubles may cause explosion by excessive short-circuit capacities and arc emission, which results in a wide range of blackout. The function and safety of the low voltage circuit breakers installed before the end load are very important. This paper presents an idea on the safety improvement of the low voltage circuit-breakers through the analysis of instantaneous trip characteristics of domestic 30AF circuit-breakers.
Keywords
30AF Circuit-Breakers; Low Voltage Circuit-Breakers; Instantaneous Trip Characteristics; Rated Short-Circuit Breaking Capacities;
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