Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of Small Current Interruption Performance for EHV Gas Circuit Breaker

초고압 가스차단기의 소전류 차단성능 해석

  • Kim, H.K. (Korea Electrotechnology Research Institute) ;
  • Park, K.Y. (Korea Electrotechnology Research Institute) ;
  • Song, K.D. (Korea Electrotechnology Research Institute)
  • 김홍규 (한국전기연구원 신전력기기연구그룹) ;
  • 박경엽 (한국전기연구원 신전력기기연구그룹) ;
  • 송기동 (한국전기연구원 신전력기기연구그룹)
  • Published : 2006.10.19
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Abstract

This paper presents the prediction method of small current interruption Performance for EHV gas circuit breakers. The FVFLIC method is used for the gas flow analysis and the FEM for the electric field analysis. Then, the dielectric withstanding voltage is evaluated by the empirical formulation or Streamer theory. By comparing the calculated dielectric strength with the test result. it is found that both methods show good prediction capability for the small current interruption performance. Especially, when both methods predict the same interrupting performance, the prediction is in accordance with the experimental result.

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