Proceedings of the KSR Conference (한국철도학회:학술대회논문집)

The Korean Society for Railway (한국철도학회)
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Detection of Series Arc Signal in Low-voltage Systems

저압계통에서 직렬아크신호의 검출

  • 지홍근 (한국해양대학교 전기전자공학부 대학원) ;
  • 박찬용 (한국해양대학교 전기전자공학부 대학원) ;
  • 길경석 (한국해양대학교 전기전자공학부) ;
  • 김일권 (주식회사 케이디파워 중앙연구소) ;
  • 조영진 (국립과학수사연구소 공업연구사)
  • Published : 2008.06.12
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Abstract

This paper described the design and fabrication of a series arc detection module to monitor electrical insulation in low-voltage system. The module consists of a passive high-pass filter with a low cut-off frequency of 3 kHz to attenuate power frequency voltage by 80 dB and an active band-pass filter with a frequency of 4 kHz to detect series arc signals only. For the application experiment, we simulated series arcing phenomena on various loads such as incandescent lamp controlled by dimmer and inverter fed induction motors by an arc generator specified in UL1699. From the experimental results, we could detect series arc signals without an influence of noises.

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