Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Safety Improvement of Low Voltage Circuit-breakers through Analysis of Instantaneous Trip Characteristics of 30AF Circuit-Breakers

30AF 차단기 순시 Trip 동작 특성분석을 통한 저압차단기의 안전성 개선방안

  • 김주철 (상도전기통신(주) 부설연구소) ;
  • 임정균 ((주)준영이엔씨) ;
  • 이상중 (서울과학기술대학교 전기공학과)
  • Received : 2009.06.11
  • Accepted : 2010.10.04
  • Published : 2010.12.31
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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.

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References

  1. 전기재해통계분석, 2008 제17호, 한국전기안전공사, 지식경제부, pp.17, 2008.
  2. KS C 8321 : 배선용차단기, 한국표준협회, 2002.
  3. KS C IEC 60898-1 : 주택용 및 이와 유사한 용도의 과전류 보호용 차단기 제1부 : 교류용차단기, 한국표준협회, 2009.
  4. KS C IEC 61009-1 : 주택용 및 이와 유사한 용도의 과전류 보호 장치를 가진 누전차단기(RCBO) 제1부 : 일반 요구사항, 한국표준협회, 2009.
  5. KS C IEC 60947-2 : 저전압 개폐장치 및 제어장치 제2부 : 차단기, 한국표준협회, 2009.

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