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A Study on Design, Fabrication Techniques and Test Results of 1.2kV 180A Inductive Superconducting Fault Current Limiter by Conduction-Cooled System  

강형구 (연세대 대학원 전기전자공학과)
전우용 (연세대 공과대 전기전자공학과)
이승제 (연세대 대학원 전기전자공학과)
안민철 (연세대 대학원 전기전자공학과)
배덕권 (연세대 대학원 전기전자공학과)
윤용수 (연세대 대학원 전기전자공학과)
고태국 (연세대 공과대 전기전자공학과)
Publication Information
Progress in Superconductivity and Cryogenics / v.5, no.2, 2003 , pp. 30-35 More about this Journal
Abstract
The inductive superconducting fault current limiter (SFCLJ limits the fault current with its dc reactor. To fabricate the optimal dc reactor for inductive SFCL, several design and manufacturing technologies are necessary. In this paper, the manufacturing technology for dc reactor and cryogenic cooling method are described in detail. GM-cryocooler was used enlarge the critical current of dc reactor by cooling down the temperature of dc reactor about 20 K. Moreover, the results of short circuit test were described. Finally, the thermal characteristics of conduction-cooled system were discussed and then, sub-cooled nitrogen system was proposed to enhance the thermal stability of dc reactor.
Keywords
SFCL; inductive SFCL; dc reactor; conduction -cooled system; cryocooler-cooled system; BSCCO-2223; superconducting magnet;
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