Quench Detection Method of HTS Model Coil Using a Series-Type Thermocouple

This paper proposes a quench detection method applied to a HTS coil and also discusses the results of tests on an HTS BSCCO wire and an HTS YBCO coil. A series-type thermocouple was fabricated to detect quench, where several thermocouples were welded in series. As the series-type thermocouple has ma...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2011-06, Vol.21 (3), p.2462-2465
Main Authors: KIM, Daewon, KIM, Jin-Geun, KIM, A.-Rong, PARK, Minwon, YU, In-Keun, SIM, Ki-Deok, KIM, Seockho, CHO, Jeonwook, SOHN, Myung-Hwan
Format: Article
Language:English
Subjects:
Applied sciences
BSCCO wire
Coils
Electrical engineering. Electrical power engineering
Electromagnets
Electronics
Exact sciences and technology
Heating
HTS magnet
quench detection
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Temperature measurement
Thermoelectric, pyroelectric devices, etc
Various equipment and components
Voltage measurement
Wire
YBCO wire
Yttrium barium copper oxide
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Summary:This paper proposes a quench detection method applied to a HTS coil and also discusses the results of tests on an HTS BSCCO wire and an HTS YBCO coil. A series-type thermocouple was fabricated to detect quench, where several thermocouples were welded in series. As the series-type thermocouple has many points of detection, variation in temperature was detected at each point by using thermo-electromotive force. The feasibility of the proposed method was investigated through the quench detection tests on the YBCO coil. This method has advantages such as a simple structure and cost effectiveness and also protects the HTS coil by detecting partial quench and its propagation.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2010.2098837