The Transactions of the Korean Institute of Electrical Engineers C (대한전기학회논문지:전기물성ㆍ응용부문C)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Analysis of Thermal Recovery Characteristics for Nozzle of SF6 GCB Considering Nozzle Ablation

노즐용삭을 고려한 SF6 가스차단기 노즐의 열적회복특성 해석

  • Published : 2005.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, a method for analyzing the thermal recovery characteristics of the nozzle of gas circuit breaker was described. In order to obtain thermal recovery characteristics, the transient simulation of SF6 arc plasma within the nozzle was carried out. In particular, the nozzle ablation was taken into account by simultaneously solving the PTFE concentration equation with the governing equations such as continuity, momentum and energy equation. After that, post arc current calculation was performed with the rate of rise of recovery voltage changed. From the calculated post arc current, it was possible to suggest the thermal recovery characteristics of the nozzle of gas circuit breaker.

Keywords

References

  1. H.M. Ryan & G.R. Jones, 'SF6 Switchgear', Peter Peregrinus Ltd., London, United Kingdom, 1989
  2. K. Ragaller, 'Current Interruption in High-Voltage Networks', 1978, Plenum Press, New York, pp.29-65
  3. Kunio Nakanishi, 'Switching Phenomena in HighVoltage Circuit Breakers', Marcel Dekker, Inc., 1991
  4. C.H. Flurscheim, 'Power circuit breaker theory' and design', IEE Power Engineering Series 1, Peter Peregrinus Ltd., 1982
  5. 'ス遮斷器のユニット大容量化への要求とその基本技術', 일본전기학회기술보고, 제 497호
  6. M.Sakaki외 3인, 'GISの遮斷性能技術', 明電時報, 通卷232호,1993 ,No.5, pp.13-24
  7. '大容量遮斷器の特殊遮斷條件', 일본전기학회기술보고(II부), 제388호
  8. 이병윤, 송기동, 박경엽, '초고압 가스차단부의 유부하 압력상승계산', 대한전기학회 전기기연구회 합동춘계학술대회 논문집,1999, pp.52-54
  9. 이병윤, 송기동, 박경엽, '초고압 가스차단부의 아크해석', 방전/플라즈마 춘계학술대회, 2000, pp.64-67
  10. 이병윤, 송기동, 박경엽, 신영준, '복합소호방식 가스차단기의 대전류 차단특성 해석', 대한전기학회 하계하술대회 국책연구기관 특별 Session논문집, 2000, pp. 37-40
  11. 이병윤, 송기동, 정진교, 박경엽, '고온.고압 아크 플라즈마 하에서의 정상상태 노즐용삭 해석 기술', 대한 전기학회논문지,52C-9-5, pp.395-399, 2003
  12. J.D. Yan, J.L.Zhang, A.B. Murphy, W.B.Hall, M.T.C. Fang, 'Arc Behavior in the Mixture of SF6 and PTFE Vapour in an AUTO-EXPANSION Circuit Breaker', Proceedings of the XIII International Conference on Gas Discharges and their Applicatios, 2000, pp. 58-61