Progress in Superconductivity
- Volume 10 Issue 1
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- Pages.60-67
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- 2008
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- 1229-4764(pISSN)
Domestic Efforts for SFCL Application and Hybrid SFCL
국내 초전도 한류기 요구와 하이브리드 초전도 한류기
- Hyun, O.B. (Korea Electric Power Research Institute, KEPCO) ;
- Kim, H.R. (Korea Electric Power Research Institute, KEPCO) ;
- Yim, Y.S. (Korea Electric Power Research Institute, KEPCO) ;
- Sim, J. (LS Industrial Systems) ;
- Park, K.B. (LS Industrial Systems) ;
- Oh, I.S. (LS Industrial Systems)
- 현옥배 (한전 전력연구원) ;
- 김혜림 (한전 전력연구원) ;
- 임성우 (한전 전력연구원) ;
- 심정욱 (LS산전전력연구소) ;
- 박권배 (LS산전전력연구소) ;
- 오일성 (LS산전전력연구소)
- Published : 2008.10.31
Abstract
We present domestic efforts for superconducting fault current limiter (SFCL) application in the Korea Electric Power Corporation (KEPCO) grid and pending points at issue. KEPCO's decision to upgrade the 154 kV/22.9 kV main transformer from 60 MVA to 100 MVA cast a problem of high fault current in the 22.9 kV distribution lines. The grid planners supported adopting an SFCL to control the fault current. This environment friendly to SFCL application must be highly dependent upon the successful development of SFCL having specifications that domestic utility required. The required conditions are (1) small size of not greater than twice of 22.9 kV gas insulated switch-gear (GIS), (2) sustainability of current limitation without the line breaking by circuit breakers (CB) for maximum 1.5 seconds. Also, optionally, recommended is (3) the reclosing capability. Conventional resistive SFCLs do not meet (1)