Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Development of 25.8kV 25kA Gas Circuit Breaker Using Thermal-Expansion Principle(II)

25.8kV 25kA 열팽창분사식 가스차단기 개발에 관한 연구(II) - 팽창실 용적이 차단성능에 미치는 영향 -

  • Song, K.D. (Korea Electrotechnology Research Institute) ;
  • Park, K.Y. (Korea Electrotechnology Research Institute) ;
  • Shin, Y.J. (Korea Electrotechnology Research Institute) ;
  • Kim, K.S. (Jinkwang Co., R&D Department) ;
  • Kim, J.G. (Jinkwang Co., R&D Department)
  • 송기동 (한국전기연구소 개폐장치연구팀) ;
  • 박경엽 (한국전기연구소 개폐장치연구팀) ;
  • 신영준 (한국전기연구소 개폐장치연구팀) ;
  • 김귀식 ((주)진광 기술연구소) ;
  • 김진기 ((주)진광 기술연구소)
  • Published : 1996.07.22
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Abstract

This paper deals with the effects of the volume of thermal expansion chamber on the interrupting performance in thermal expansion type 25.8kV 25kA gas circuit breaker. Model interrupters with 5 type thermal expansion chamber were designed and manufactured. Short-circuit tests were carried out for those model interrupters with 25kA breaking current. Pressure rise in the expansion chamber were measured and compared with the calculated one which was obtained from a self-developed program in our team. The analysis on the interrupting performance of each model interrupter has been done on the base of the short-circuit test results.

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