The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on Arc Conductance of Puffer Type SF6 GCB at Current Zero Period

전류영점 영역에서 파퍼식 SF6 가스차단기의 아크 컨덕턴스에 관한 연구

  • Published : 2010.02.01
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Abstract

The SLF(Short Line Fault) breaking capability test for high voltage class $SF_6$ GCB(Gas Circuit Breaker) was conducted. Simplified LC resonant circuit test facility was used for SLF breaking test. During test, Test current was measured by Rogwski coil and arc voltage was measured by voltage divider. Arc conductance was calculated by using these test results before 200ns at current zero. Critical arc conductance value at rated voltage 145kV class is about 2.3mS regardless of breaking current magnitude and arc conductance value at rated voltage 170kV class is about 2.6mS.

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References

  1. R.P.P. Smeets, Susumu Nishiwaki, "Short-Line Fault Interruption Assessment of High-Voltage Circuit Breakers by Means of Current Zero Analysis" International Colloquium, pp 104-111 CIGRE SC A3, 2003
  2. R.P.P. Smeets, V. Kerteszz, "A New Arc Parameter Database for Characterization of Short-Line Fault Interruption Capability of High-Voltage Circuit Breakers", A3-110, CIGRE 2006
  3. IEC 62271-101 Synthetic testing
  4. IEC 62271-100 High-voltage alternating-current circuit-breakers
  5. 정진교, 이우영, 김규탁, "SF6 가스 차단기의 아크저항에 관한 연구" Trans. KIEE, Vol. 56, No. 9, pp1566-1570, SEP. 2007