뇌방전에 의해서 발생하는 전계와 자계파형의 파라미터 해석

Parameter Characteristics of the Electric and Magnetic Field Waveforms Associated with Lightning Discharges

  • 박성열 (인하대학교 전기공학과) ;
  • 이복희 (인하대학교 전기공학과) ;
  • 전덕규 (국립 서울산업대학교 자동차공학과)
  • Park, Sung-Yeol (Dept. of Electrical Engineering, Inha University) ;
  • Lee, Bok-Hee (Dept. of Electrical Engineering, Inha University) ;
  • Jeon, Duk-Kyu (Dept. of Automotive Engineering, Seoul National Polytechnic University)
  • 발행 : 1996.07.22

초록

In this paper, in order to obtain the statistic information for parameters of electric and magnetic field waveforms associated with lightning discharges, the electric and magnetic fields produced by lightning discharges in the summer of 1995 were measured by a hemisphere-type electric field sensor and a loop-type magnetic field sensor, which were installed at the campus of Inha University in Inchon. The signals of the electric and magnetic fields were continuously recorded by a transient digitizer having a resolution of 12 bit and a memory capacity of 5000 point. Negative lightning discharges are produced very more than positive lightning discharges in the summer of Korea. The 10 to 90 % rise time of electric and magnetic fields was 2 $2\;{\sim}\;10\;{\mu}s$. And the zero-crossing time of electric field was $15\;{\sim}\;25\;{\mu}s$, whereas that of magnetic field was $20\;{\sim}\;30\;{\mu}s$.

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