Design and test of modified bridge type superconducting fault current limiter with reverse magnetized core

Seungje Lee, Chanjoo Lee, Min Cheol Ahn, Hyoungku Kang, Duck Kweon Bae, Tae Kuk Ko

Research output: Contribution to journalConference articlepeer-review

14 Citations (Scopus)


To develop DC reactor type Superconducting Fault Current Limiter (SFCL), the most important elements are superconducting magnets or inductors. Recently large size magnets have been developed, according as the improvement of high temperature superconducting wire. In DC reactor type SFCL, the purpose of magnet is to store generated electric energy of power system immediately after fault. Therefore most of inductors are designed with air core since magnetic core inductor is too easy saturated to absorb the energy. Therefore the inductor consumes so much superconducting wire to make large inductance and these expensive coils are weak point of DC reactor type SFCL. To solve this problem, Reverse Magnetization Bias (RMB) method is introduced. The energy capacity of magnetic core is expanded to several times. With the shorter length of HTC superconducting wire, the more good effect was obtained in 40V prototype SFCL.

Original languageEnglish
Pages (from-to)2016-2019
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number2 II
Publication statusPublished - 2003 Jun
Event2002 Applied Superconductivity Conference - Houston, TX, United States
Duration: 2002 Aug 42002 Aug 9

Bibliographical note

Funding Information:
Manuscript received August 6, 2002. This work was supported by a grant from the Center for Applied Superconductivity Technology of the 21st Century Frontier R&D Program funded by the Ministry of Science and Technology, Republic of Korea.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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