Current Transport and Limitation Characteristics of YBCO Coated Conductor Having Different Stabilizer Connected in Series

YBCO coated conductors (CC) with high critical current density and index values are expected to be applied to superconducting power device. In particular, it is characterized by possibilities of selecting a stabilizing material surrounding YBCO CCs so that they could be applied to superconducting fa...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2009-06, Vol.19 (3), p.1727-1730
Main Authors: DU, Ho-Ik, YIM, Seong-Woo, KIM, Min-Ju, HAN, Byoung-Sung, HAN, Young-Hee, LEE, Jeong-Phil
Format: Article
Language:English
Subjects:
Applied sciences
Carbon capture and storage
Conducting materials
Conductors
Conductors (devices)
Connection and protection apparatus
Constraining
Copper
COPPER OXIDE
Critical current density
Electric connection. Cables. Wiring
ELECTRICAL CONDUCTORS
Electrical engineering. Electrical power engineering
ELECTRICAL PROPERTIES
Electromagnets
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Exact sciences and technology
Fault current limiters
Faults
PROPERTIES
Quench protection
STAINLESS STEELS
Steel
STEELS
Superconducting cables
Superconducting devices
Superconducting materials
SUPERCONDUCTIVITY
SUPERCONDUCTORS
Various equipment and components
YBCO coated conductor
YBCO resistive type SFCL
YBCO superconductors
Yttrium barium copper oxide
YTTRIUM OXIDE
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Summary:YBCO coated conductors (CC) with high critical current density and index values are expected to be applied to superconducting power device. In particular, it is characterized by possibilities of selecting a stabilizing material surrounding YBCO CCs so that they could be applied to superconducting fault current limiters (SFCLs) and superconducting cables according to their physical properties. In this study, we conducted experiments by selecting YBCO CCs having different stabilizers of copper and stainless steel. First, we investigated the voltage-current variations with applied over-current beyond their critical currents and temperature variation generated by Joule heating. From the results, YBCO CC with copper stabilizer was more suitable for the current carrying characteristics and the CC with stainless steel showed successful current limiting properties. Finally, The 2 YBCO CCs were connected in series and electrical properties were investigated. From the results, we confirmed that the safe current carrying operation with fault current limitation could be carried out successfully.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2009.2018317