Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Current limiting characteristics of the resistive and inductive SFCL in the double line-to-ground fault

2선 지락사고에 대한 저항형과 유도형 한류기의 전류제한특성

  • Choi, Hyo-sang (Power System Laboratory, Korea Electric Power Research Institute(KEPRI)) ;
  • Hyun, Ok-Bae (Power System Laboratory, Korea Electric Power Research Institute(KEPRI)) ;
  • Kim, Sang-Joon (Power System Laboratory, Korea Electric Power Research Institute(KEPRI)) ;
  • Han, Byoung-Sung (Chonbuk National University)
  • 최효상 (한국전력공사 전력연구원 전력계통연구실) ;
  • 현옥배 (한국전력공사 전력연구원 전력계통연구실) ;
  • 김상준 (한국전력공사 전력연구원 전력계통연구실) ;
  • 한병성 (전북대학교 전기공학과)
  • Published : 1999.07.19
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Abstract

We investigated the current limiting characteristics of resistive and inductive SFCLs with 100${\Omega}$ of Quench impedance for a double line-to-ground fault, in the 154 kV transmission system. The fault simulation at the phase angles $0^{\circ}$, $45^{\circ}$, and $90^{\circ}$ showed that the resistive SFCL limited the fault current less than 17 kA without any DC component after one half cycle from the instant of the fault. On the other hand, the inductive SFCL suppressed the current below 12 kA, but with 3$\sim$5 kA of DC component which decreased to zero in 6 cycles. We concluded that the inductive SFCL had higher performance in current limiting but the resistive SFCL was better from the view point of DC components.

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