Interrupting Performance of 7.2kV $SF_6$ Gas Electromagnetic Contactor Using Rotary Arc Principle

7.2kV급 로타리아크 소호방식을 이용한 $SF_6$가스 전자접촉기의 차단특성

  • 장기찬 (한국전기연구소 개폐장치연구팀) ;
  • 정진교 (한국전기연구소 개폐장치연구팀) ;
  • 신영준 (한국전기연구소 개폐장치연구팀) ;
  • 김진기 ((주)진광 부설기술연구소) ;
  • 김귀식 ((주)진광 부설기술연구소)
  • Published : 1996.07.22

Abstract

The model interrupters of $SF_6$ gas electromagnetic contactor whose ratings are 7.2kV, 4.0kA have been designed and manufactured on the basis of theoretical and computational analysis for its development. The eddy current analysis, the magnetic field analysis and the calculation of the rotational force on arcs have been conducted using FLUX2D package. The short circuit current interrupting tests have been conducted for the model interrupters using the simplified synthetic testing facility in KERI. The results show that the model interrupters have sufficient interrupting capability and the new design concept is prefer for good interrupting performance.

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