$SF_6$ 가스를 이용한 배전급 RMU용 소호부 개발

Development of Medium Voltage $SF_6$ Interrupter for RMU

  • Lee, B.W. (Electro Technology R&D Center, LG Industrial Systems) ;
  • Sohn, J.M. (Electro Technology R&D Center, LG Industrial Systems) ;
  • Seo, J.M. (Electro Technology R&D Center, LG Industrial Systems) ;
  • Choe, J.W. (Electro Technology R&D Center, LG Industrial Systems)
  • 발행 : 2001.05.11

초록

This paper considers the research of the hybrid interrupter which adopts both rotating arc and thermal expansion technology. The operating principle of this device defends on rapid arc rotation due to the magnetic field created by the fault current through a coil which is mounted on contacts and also relies on the principle of thermal expansion created by arc energy in extinguishing chamber and finally causes pressure rise in expansion volume. In this research, the principle of the interrupting techniques are given and experimental results of hybrid interrupter which is developed by new technology is introduced.

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