KIEE International Transactions on Electrophysics and Applications

The Korean Institute of Electrical Engineers (대한전기학회)
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Development of a 170kV 50kA Capacitorless Gas Circuit Breaker

  • Park, K. Y. (Korea Electrotechnology Research Institute (KERI)) ;
  • K. D. Song (Korea Electrotechnology Research Institute (KERI)) ;
  • Y. H. Oh (Korea Electrotechnology Research Institute (KERI)) ;
  • W. P. Song (Hyosung Corporation - R&D Institute) ;
  • J. H. Kang (Hyundai Heavy Industries Co., Ltd - HV Circuit Breaker Design Dept.) ;
  • Park, S. W. (LG Industrial Systems Co., Ltd - UHV Team)
  • Published : 2003.06.01
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Abstract

In modern EHV (Extra High Voltage) class GCBs (Gas Circuit Breakers), the interruption capability for SLF (Short Line Fault) is one of the most important aspects of performance required for GCBs. Up to now, the SLF interruption capability of EHV class GCBs was partially assisted by the adoption of capacitors able to decrease the dV/dt of the TRV (Transient Recovery Voltage), particularly the TRV on the line side. This paper describes the technique to increase the SLF interruption capability of EHV class GCBs as well as the procedure to develop capacitorless l70kV 50kA GCB.

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References

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