Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Novel Design and Operational Characteristics of Inductive High-Tc Superconducting Fault Current Limiter to Protection the Power System

전력시스템 보호를 위한 공극을 이용한 유도형 고온초전도체 한류기의 디자인과 동작특성

  • Jang, Mi-Hye (Dept. of Electrical and Computer Engineering Yonsei Univ.) ;
  • Lee, Chan-Joo (Dept. of Electrical and Computer Engineering Yonsei Univ.) ;
  • Joo, Min-Seok (Dept. of Electrical and Computer Engineering Yonsei Univ.) ;
  • Ko, Tae-Kuk (Dept. of Electrical and Computer Engineering Yonsei Univ.)
  • 장미혜 (연세대학교 전기.컴퓨터공학과) ;
  • 이찬주 (연세대학교 전기.컴퓨터공학과) ;
  • 주민석 (연세대학교 전기.컴퓨터공학과) ;
  • 고태국 (연세대학교 전기.컴퓨터공학과)
  • Published : 1999.07.19
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Abstract

A novel prototype of an inductive superconducting fault current limiter with an iron core and an air sap was fabricated and tested. If its impedance is not high enough to limit the fault current, then destructive damage occurs in the power system. We attained a magnetic saturation under the higher current by introducing an air gap in the three-legged magnetic core. The fault current was successfully limited to two times as much as the nominal current without high fault current within 1/4 cycles at a 60 Hz source having an effective voltage of 70V.

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