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http://dx.doi.org/10.4313/JKEM.2002.15.11.985

Electrical Breakdown Characteristics of LN2 under Simulated Quenching Conditions for Application of HTS Apparatus  

백승명 (경상대학교 전기공학과 및 컴퓨터 - 자동화응용 기술 연구소)
정종만 (경상대학교 전기공학과 및 컴퓨터 - 자동화응용 기술 연구소)
김상현 (경상대학교 전기공학과 및 컴퓨터 - 자동화응용 기술 연구소)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.15, no.11, 2002 , pp. 985-990 More about this Journal
Abstract
The electrical breakdown characteristics of liquid nitrogen(LN$\sub$2/) were studied under simulated quenching conditions for application of HTS apparatus. The experimental results for various quenching condition revealed that the breakdown voltage of LN$\sub$2/ with bubble flow velocity and gap spacing. In the case, breakdown voltage decreases gradually with the bubble velocity. When it is bubble velocity from 0 to 1 $\ell$ /min, breakdown voltage rapidly decreases but decreases from 2 $\ell$/min to 10 $\ell$/min slowly. The breakdown voltage for vertical electrode arrangement is higher than that for horizontal electrode arrangement. Also, it did a electric field and potential distribution interpreting at the liquid nitrogen when the bubble existed. The plots of equipotential lines for three cases are also shown.
Keywords
Electrical breakdown; Liquid nitrogen; Quenching conditions; HTS apparatus;
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Times Cited By KSCI : 3  (Citation Analysis)
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