Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of Magnitude and Rate-of-rise of VFTO in 550 kV GIS using EMTP-RV

  • Seo, Hun-Chul (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Jang, Won-Hyeok (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Kim, Chul-Hwan (College of Information and Communication Engineering, Sungkyunkwan University) ;
  • Chung, Young-Hwan (Power & Industrial Systems PG, Hyosung Corporation) ;
  • Lee, Dong-Su (Power & Industrial Systems PG, Hyosung Corporation) ;
  • Rhee, Sang-Bong (Dept. of Electrical Engineering., Yeungnam University)
  • Received : 2011.08.08
  • Accepted : 2012.05.17
  • Published : 2013.01.02
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Abstract

Very Fast Transients (VFT) originate mainly from disconnector switching operations in Gas Insulated Substations (GIS). In order to determine the rate-of-rise of Very Fast Transient Overvoltage (VFTO) in a 550 kV GIS, simulations are carried out using EMTP-RV. Each component of the GIS is modeled by distributed line model and lumped model based on equivalent circuits. The various switching conditions according to closing point-on-wave and trapped charge are simulated, and the results are analyzed. Also, the analysis of travelling wave using a lattice diagram is conducted to verify the simulation results.

Keywords

References

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