KIEE International Transactions on Electrophysics and Applications

The Korean Institute of Electrical Engineers (대한전기학회)
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The Lightning Current Parameters that Impact on the Surge Analysis of the EHV Gas Insulated Substation by EMTP

  • Shim Eung-Bo (Power Systems Laboratory, Korea Electric Power Research Institute) ;
  • Han Sang-Ok (Dept. of Electrical Engineering, Chungnam National University)
  • Published : 2005.02.01
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Abstract

This paper describes the lightning surge analysis model of extra high voltage GIS using EMTP. Various lightning current parameters were investigated in order to confirm the impact on the lightning surge analysis such as lightning current amplitude, waveform, size of GIS, tower footing resistance and surge arresters. The multi-story tower model and EMTP/TACS model were introduced for the simulation of dynamic arc characteristics. The margin between the maximum overvoltage and BIL of the GIS was about 10 percent and the margin between the maximum overvoltage and BIL of the transformer was 21 percent.

Keywords

References

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