Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Mathematical Modelling of $SF_6$ Puffer Circuit Breakers I : High Current Region

$SF_6$ 파퍼차단기의 수학적 모델링 I : 대전류 영역

  • Park, K.Y. (Korea Electrotechnology Research Institute) ;
  • Park, J.H. (Korea Electrotechnology Research Institute) ;
  • Shin, Y.J. (Korea Electrotechnology Research Institute)
  • 박경엽 (한국전기연구소 대전력연구실) ;
  • 박종화 (한국전기연구소 대전력연구실) ;
  • 신영준 (한국전기연구소 대전력연구실)
  • Published : 1993.07.18
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Abstract

A mathematical arc model based on the integral method has been developed to study the arc behaviour of $SF_6$ Puffer circuit breakers during high current period. The interaction between the compression chamber and the arc interrupter plays a critical role in determining the arc behaviour. Computations have been carried out for the puffer circuit breaker of Noeske et al.[1]. The aerodynamic behaviour and electrical characteristics of the puffer circuit breaker have been investigated. In addition, the pressure rise in the compression chamber and arc voltage have been computed and the results compared with the available experimental results of Noeske et al.[1]. Special attention has been paid to the presence of the shock.

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