극간절연회복성능 향상을 위한 초고압GCB의 노즐형상설계

Design of Nozzle Shape for UHV GCB to Improve the Dielectric Recovery Characteristics between Electrodes

  • 송기동 (한국전기연구소 개폐장치연구팀) ;
  • 박경엽 (한국전기연구소 개폐장치연구팀) ;
  • 신영준 (한국전기연구소 개폐장치연구팀) ;
  • 권기영 (효성중공업(주) 기술연구소) ;
  • 송원표 (효성중공업(주) 기술연구소)
  • 발행 : 1995.11.18

초록

This paper presents a method witch tan improve the dielectric recovery characteristics of UHV class gas circuit breakers by changing the nozzle shape. To calculate the dielectric recovery voltage between electrodes, the flow field and electric field analysis in a 362kV model interrupter has been performed with the commercial programs, RAMPANT and FLUX2D, respectively. As a result, we found that the nozzle shape affects the characteristics of dielectric recovery between electrodes and obtained great improvement of it by the changing the downstream nozzle shape.

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