한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)
- 제13권12호
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- Pages.1058-1062
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- 2000
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- 1226-7945(pISSN)
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- 2288-3258(eISSN)
15 kVA급 박막형 초전도 전류제한기의 한류특성
Characteristics of 15 kVA Superconducting Fault Current Limiters Using Thin Films
초록
We investigated resistive superconducting fault current limites (SFCLs) fabricated using YBCO thin films on 2-inch diameter sapphire substrates. Nearly identical SFCL units were prepared and tested. The units were connected in series and parallel to increase the current and voltage ratings. A serial connection of the units showed significantly unbalanced power dissipation between the units. This imbalance was removed by introducing a shunt resistor to the firstly quenched unit. Parallel connection of the units increased the current rating. An SFCL module of 4 units in parallel, each of which has minimum quench current rating. An SFCL module of 4 units in parallel, each of which has minimum quench current 25 A
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