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http://dx.doi.org/10.4313/JKEM.2021.34.3.2033

Quench Properties of GBCO Coated Conductors Under Repeated Short-Circuit Conditions  

Ahn, Bong-Man (Industrial Cooperation Foundation, Jeonbuk National University)
Han, Byung-Sung (Department of Electric Engineering, Jeonbuk National University)
Kim, Hye-Rim (KEPCO Research Institute)
Hwang, Jee Won (Department of Information Technology and Engineering, Jeonbuk National University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.34, no.3, 2021 , pp. 203-208 More about this Journal
Abstract
Durability of superconductors used to fabricate superconducting power machines is important, since the machines need to operate stably. Quench properties of GBCO (GdBa2Cu3O7) coated conductor tapes laminated with brass were measured and analyzed to investigate the durability of tapes under repeated short-circuit conditions. With short currents applied to the tapes repeatedly, the quench properties of tapes were measured, and bubbles generated during quenches were observed. The results showed that quench resistance and distribution were maintained after repeated quenches. They were maintained after repeated quenches at various applied voltages, which show durability of the tapes under repeated short-circuit conditions. The quench distribution was uniform throughout repeated quenches, which contributed to the durability of tapes.
Keywords
GBCO coated conductor; Quench properties; Repeated quenches;
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Times Cited By KSCI : 2  (Citation Analysis)
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