Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Breakdown Characteristics of Dry Air under 362 kV GIB

362 kV GIB 내에서 건조공기의 절연파괴 특성

  • Han, Ki-Son (Transmission and Distribution Laboratory, Korea Electric Power Research Institute) ;
  • Ju, Hyung-Jun (Transmission and Distribution Laboratory, Korea Electric Power Research Institute) ;
  • Yoon, Jin-Yul (Transmission and Distribution Laboratory, Korea Electric Power Research Institute) ;
  • You, Hong-Geun (Transmission and Distribution Laboratory, Korea Electric Power Research Institute)
  • 한기선 (한국전력공사 전력연구원 송배전연구소) ;
  • 주형준 (한국전력공사 전력연구원 송배전연구소) ;
  • 윤진열 (한국전력공사 전력연구원 송배전연구소) ;
  • 유홍근 (한국전력공사 전력연구원 송배전연구소)
  • Received : 2010.08.16
  • Accepted : 2010.09.17
  • Published : 2010.10.01
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Abstract

In this paper, we studied the dielectric breakdown voltage characteristics by the AC withstand voltage test on using green insulation dry air instead of $SF_6$ insulation gas used in the GIB (gas insulated bus) of 362 kV GIS (gas insulated switchgear). The AC withstand voltage test applied to the standard KEPCO's 362 kV GIB with dry air insulation, and the equivalence of dielectric breakdown voltage for dry air and $SF_6$ gas were examined, and the empirical formulas of dielectric breakdown voltage for dry air were calculated, and the criterion of AC withstand voltage test for dry air insulation was derived. Using the criterion, dry air can be used instead of $SF_6$ gas for 362 kV GIB in the factory acceptance test was confirmed.

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References

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