Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference (한국조명전기설비학회:학술대회논문집)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Survey on the Actual Conditions of False-Tripping of MCCB ard ELB

배선용 및 누전차단기 오동작 실태조사

  • 유재근 (한국전기안전공사 전기안전연구원) ;
  • 이상익 (한국전기안전공사 전기안전연구원) ;
  • 전정채 (한국전기안전공사 전기안전연구원) ;
  • 정종욱 (한국전기안전공사 전기안전연구원) ;
  • 임용배 (한국전기안전공사 전기안전연구원)
  • Published : 2004.11.03
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Abstract

False-tripping of MCCB(Molded Case Circuit Breaker) and ELB(Earth Leakage Circuit Breaker), using to protect overload and ground-fault accidents in power system raise direct and indirect losses like as information loss, facilities damage, slipup of goods production in industry place. Cause of false-tipping of MCCB and ELB is various and cause analysis of false-tripping is mostly made up by inference because trip is not reappeared. This paper investigated and analyzed causes and influences of false-tripping of MCCB and ELB by making up a question to safety managers of two hundred and eighteen electrical facilities for private use. Also, the necessity of experimental study on the effect of harmonics on false-tipping of MCCB and ELB was presented.

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