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Novel design and operational characteristics of inductive high-Tc superconducting fault current limiter

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2 Author(s)
Minseok Joe ; Dept. of Electr. Eng., Yonsei Univ., Seoul, South Korea ; Tae Kuk Ko

A novel prototype of an inductive superconducting fault current limiter with an iron core and an air gap was fabricated and tested. If its impedance is not high enough to limit the fault current, then destructive damage occurs in the power system. The authors attained 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 70 V.

Published in:
Applied Superconductivity, IEEE Transactions on  (Volume:7 ,  Issue: 2 )

Date of Publication: June 1997

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