New Concept of Switchgear for Replacing SF6 Gas or Gas Mixture

  • S. Yanabu
  • S. Arai
  • Y. Kawaguchi
  • T. Kawamura


Since 1950 years’, in order to minimize the substation area, SF6 gas insulated switchgear has been energetically developed. Even at this moment, a new principle to improve interruption ability or insulation is considered and further reduction of switchgear size is being made to innovate new GIS. At moment, 550kV-63kA one-break circuit breaker as well as 1100kV UHV breaker is realized and the former is practically used.


Circuit Breaker Integral Type Minus Pressure High Voltage Application Solid Insulation 
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Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • S. Yanabu
    • 1
  • S. Arai
    • 1
  • Y. Kawaguchi
    • 2
  • T. Kawamura
    • 3
  1. 1.Department of Electrical EngineeringTokyo Denki UniversityJapan
  2. 2.Department of Electrical EngineeringKokushikan UniversityJapan
  3. 3.Department of Electrical EngineeringShibaura Institute of TechnologyJapan

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