Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of Transient Overvoltages within a 345kV Korean Thermal Plant

  • Yeo, Sang-Min (Power & Industrial Systems R&D Center, Hyosung Corporation) ;
  • Kim, Chul-Hwan (School of Information and Communication Engineering, Sungkyunkwan Univerity)
  • Received : 2011.04.29
  • Accepted : 2012.02.03
  • Published : 2012.05.01
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Abstract

This paper presents the simulation results for the analysis of a lightning surge, switching transients and very fast transients within a thermal plant. The modeling of gas insulated substations (GIS) makes use of electrical equivalent circuits that are composed of lumped elements and distributed parameter lines. The system model also includes some generators, transformers, and low voltage circuits such as 24V DC rectifiers and control circuits. This paper shows the simulation results, via EMTP (Electro-Magnetic Transients Program), for three overvoltage types, such as transient overvoltages, switching transients, very fast transients and a lightning surge.

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References

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