Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Factors Affected the Accuracy of Lightning Current Measuring System

뇌격전류 측정의 정확도에 영향을 미치는 요인

  • Lee, B.H. (Inha Uni. Research Center for Next-generation High voltage and Power technology) ;
  • Chang, K.C. (Inha Uni. Research Center for Next-generation High voltage and Power technology) ;
  • Kang, S.M. (Inha Uni. Research Center for Next-generation High voltage and Power technology) ;
  • Eom, J.H. (Inha Uni. Research Center for Next-generation High voltage and Power technology) ;
  • Jeong, K.J. (KEPRI) ;
  • Sim, E.B. (KEPRI) ;
  • Woo, J.W. (KEPRI)
  • 이복희 (인하대 차세대 고전압전력기술연구센터) ;
  • 장근철 (인하대 차세대 고전압전력기술연구센터) ;
  • 강성만 (인하대 차세대 고전압전력기술연구센터) ;
  • 엄주홍 (인하대 차세대 고전압전력기술연구센터) ;
  • 정길조 (한국전력연구원) ;
  • 심응보 (한국전력연구원) ;
  • 우정욱 (한국전력연구원)
  • Published : 2003.07.21
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Abstract

The factors affecting the accuracy of lightning current measuring system are figured out the materials and length of down-conductor, and impedance matching between grounding resistance and characteristic impedance of cable. The cable with the low characteristic impedance used to transfer the lightning current from the top of the tower is too long to measure the waveform of lightning current, exactly. Especially, the height of the tower can cause the change of front time and magnitude of lightning stroke current. Basically, in this experiment. It was found that the magnitude and rise time of the lightning current are extremely dependant in the length of down-conductor in lightning current measuring system.

Keywords