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

  • 제17권4호
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  • Pages.94-99
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  • 2003
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  • 1229-4691(pISSN)
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  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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배전용 변압기를 통하여 저압 전원선으로 전파되는 뇌서지

Lightning Surges Transferred to Low-voltage AC Power Lines through Distribution Transformers

  • 이복희 (인하대학교 전자전기공학부) ;
  • 이동문 (인하대학교 대학원 전기공학과) ;
  • 이수봉 (인하대학교 대학원 전기공학과)
  • 발행 : 2003.07.01
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⟨ 이전 논문 다음 논문 ⟩

초록

정밀하고 소형화된 전자기기 사용의 증가로 인한 전원공급의 질적 향상에 대한 필요성이 강하게 증가하고 있다. 저압전원 배전계통에서의 과도 과전압은 직격 또는 유도뢰에 의해 유도되어지고, 가정, 사무실, 공장 등의 자동화시스템이나 병원설비와 같은 중요한 시스템의 손상이나 고장의 원인이 되고 있다. 본 논문에서는 임펄스 발생기를 이용하여 배전용 변압기를 거쳐 저압 전원시스템으로 이행되는 뇌과전압의 양상에 대하여 실험적으로 조사하였다. 배전용 변압기의 1차측에 설치한 피뢰기와 수용가측 추가접지는 저압 전원시스템으로 이행되는 뇌서지전압의 제한에는 크게 기여하지 않았다.

A strong need to improve the quality of electric power is increased because of increasing use of the sensitive and small-sized electronic devices. The transient overvoltages on low-voltage AC power distribution systems are induced by direct or indirect lightning return strokes, and they can cause damage and/or malfunction of the utility systems for home automation, office automation and factory automation as well as medical equipment. The behaviors of lightning overvoltages transferred through the transformer to the low voltage AC power distribution systems were experimentally investigated using a Marx generator. The surge voltages in low-voltage ac power systems are rarely limited by the application of the surge arrester to the primary side of distribution transformer and a custom service ground.

키워드

참고문헌

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