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Quench and Recovery Characteristics of a SFCL Applied Into Neutral Line of a Three-Phase Power System

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7 Author(s)
Sung-Hun Lim ; Dept. of Electr. Eng., Soongsil Univ., Seoul, South Korea ; Jin-Seok Kim ; Jong-Fil Moon ; Jae-Chul Kim
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We suggested that the neutral line is a more effective location for a superconducting fault current limiter (SFCL) in a three-phase power system. To confirm it, we analyzed the quench and recovery characteristics of SFCL applied into the neutral line in cases of non-symmetrical ground faults, such as single line-to-ground and double line-to-ground faults. Through a comparative analysis based on the experimental results for two SFCLs applied either to the neutral line or to the three-phase power line, it was confirmed that the SFCL applied into the neutral line of the power system was more advantageous from the viewpoint of both the practical use of the SFCL and the SFCL's coordination with other related protective devices in the power system.

Published in:

IEEE Transactions on Applied Superconductivity  (Volume:19 ,  Issue: 3 )