NDLI: Quench Development in Superconducting Fault Current Limiters Based on YBCO Films

Content Provider	IEEE Xplore Digital Library
Author	Hye-Rim Kim Seong-Woo Yim Sung-Yong Oh Seung-Deok Yoo Ok-Bae Hyun
Copyright Year	2002
Abstract	We measured and analyzed quench development in superconducting fault current limiters (SFCLs) based on Au/YBa₂Cu₃O₇ thin films, taking temperature dependence of thermal parameters into consideration. The SFCLs were fabricated by patterning Au/YBCO films grown on 100 mm-diameter sapphire substrates. They were subjected to simulated AC fault currents for quench development measurement. The samples were immersed in liquid nitrogen during the experiment. The quench resistance increased rapidly first and then moderately fast. The increase slowed down afterwards. Data were analyzed quantitatively with the concept of heat transfer within the SFCLs. A heat balance equation was derived and solved, taking into consideration temperature dependence of thermal parameters of sapphire substrates. The solutions agreed with data well. They explained the quench behavior both prior to and after completion of quench propagation. Dependence of quench development on applied voltages could be also understood quantitatively.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1926
Ending Page	1929
Page Count	4
File Size	207911
File Format	PDF
ISSN	10518223
Volume Number	19
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Superconducting films Fault current limiters Yttrium barium copper oxide Current measurement Gold Temperature dependence Superconducting thin films Thermal quenching Fault currents Electrical resistance measurement YBCO films Heat transfer quench superconducting fault current limiter
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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