Title :
Quench Detection Method of HTS Model Coil Using a Series-Type Thermocouple
Author :
Kim, Daewon ; Kim, Jin-Geun ; Kim, A. Rong ; Park, Minwon ; Yu, In-Keun ; Sim, Ki-Deok ; Kim, Seockho ; Cho, Jeonwook ; Sohn, Myung-Hwan
Author_Institution :
Dept. of Electr. Eng., Changwon Nat. Univ., Changwon, South Korea
fDate :
6/1/2011 12:00:00 AM
Abstract :
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.
Keywords :
barium compounds; bismuth compounds; high-temperature superconductors; strontium compounds; superconducting coils; thermocouples; yttrium compounds; BSCCO; HTS BSCCO wire; HTS YBCO coil; HTS model coil; YBCO; quench detection method; series-type thermocouple; thermo-electromotive force; Coils; Heating; Temperature measurement; Voltage measurement; Wire; Yttrium barium copper oxide; BSCCO wire; HTS magnet; YBCO wire; quench detection;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2010.2098837