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Characteristics of Matrix Type SFCL with $2{\times}3$ Array According to the Trigger Coil and Shunt Resistance  

Jung, Byung-Ik (조선대학교 전기공학과)
Choi, Hyo-Sang (조선대학교 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.58, no.1, 2009 , pp. 85-89 More about this Journal
Abstract
We investigated the quench characteristics in accordance with increase of turns number of trigger coil and shunt resistance of matrix-type superconducting fault current limiter (SFCL) with $2{\times}3$ array. The matrix-type SFCL consists of the trigger part to apply magnetic field and the current-limiting part to limit fault current. The fault current limiting characteristics according to the increase of magnetic field and applied voltage were nearly same. This is because the application of magnetic field hasn't an affect on total impedance of the SFCL. When turns number of a reactor increased, the voltage difference between two superconducting units in the current-limiting part according was decreased. The resistance difference generated in two superconducting units was also decreased. Therefore, we confirmed that the differences of the critical behaviors between superconducting units were reduced by application of magnetic field. By this results, we could decide the optimum turns number of reactor to apply magnetic field.
Keywords
The Matrix-Type SFCL; Trigger Part; Current-Limiting Part; Trigger Coil; Shunt Resistance;
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