Study of Seal-off Triggered Vacuum Switch(TVS) for High Voltage and High Current

고전압 대전류용, Seal-off TVS(Triggered Vacuum Switch) 연구

  • Park, S.S. (Accelerator department, Pohang Accelerator Laboratory., POSTECH) ;
  • Han, Y.J. (Accelerator department, Pohang Accelerator Laboratory., POSTECH) ;
  • Kim, S.H. (Accelerator department, Pohang Accelerator Laboratory., POSTECH) ;
  • Kwon, Y.K. (Accelerator department, Pohang Accelerator Laboratory., POSTECH) ;
  • Kim, S.H. (Accelerator department, Pohang Accelerator Laboratory., POSTECH) ;
  • Park, Y.J. (Accelerator department, Pohang Accelerator Laboratory., POSTECH) ;
  • Hong, M.S. (Accelerator department, Pohang Accelerator Laboratory., POSTECH) ;
  • Nam, S.H. (Accelerator department, Pohang Accelerator Laboratory., POSTECH)
  • 박성수 (포항공과대학교 포항가속기연구소 가속기부) ;
  • 한영진 (포항공과대학교 포항가속기연구소 가속기부) ;
  • 김상희 (포항공과대학교 포항가속기연구소 가속기부) ;
  • 권영건 (포항공과대학교 포항가속기연구소 가속기부) ;
  • 김승환 (포항공과대학교 포항가속기연구소 가속기부) ;
  • 박용정 (포항공과대학교 포항가속기연구소 가속기부) ;
  • 홍만수 (포항공과대학교 포항가속기연구소 가속기부) ;
  • 남상훈 (포항공과대학교 포항가속기연구소 가속기부)
  • Published : 2002.07.10

Abstract

The purpose of this experiment was to develope Triggered Vacuum Switch (TVS) for the high voltage and high current. The TVS has an array of rods of alternate polarity in which a fixed gap spacing is maintained between the rods. The cross section of each rod has trapezoidal shape. It consists of electrode, ceramic chamber, getter and trigger. Currently, triggered vacuum switch (TVS) with seal-off has been designed and fabricated at PAL. An experimentation and trigger devices for TVS were designed for testing characteristics of electricity. For making the prototype of TVS, it is developed of fabrication process and fined of electrode material. The fabrication of the TVS is a lot of process which have manufacturing of part, chemical clean, ceramic brazing and metal welding. The fabricated TVS is tested of leak for vacuum, hold-off voltage and conditioning of trigger system. The TVS has pinch-off after it is removed of gas in the TVS and activated of getter in degassing furnace. The prototype TVS tested about 20 kV, 75 kA, 83 ${\mu}s$ with 100 kJ capacitor bank and inductance 5 ${\mu}H$. This paper describes the results of tests and the characteristics of the switch.

Keywords