TY - JOUR
T1 - Investigation of an optimum structure for mechanical butt joint of a stacked HTS cable with a metal jacket
AU - Ito, Satoshi
AU - Hashizume, Hidetoshi
N1 - Funding Information:
Manuscript received July 31, 2010; accepted December 11, 2010. Date of publication January 24, 2011; date of current version May 27, 2011. This work was supported in part by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Young Scientists (B), 19760593, 2009.
PY - 2011/6
Y1 - 2011/6
N2 - Mechanical butt joint of a high-temperature superconducting (HTS) cable with a metal jacket has been investigated for a remountable HTS magnet where parts can be mounted and demounted iteratively to allow a superconducting magnet for a fusion reactor to be assembled and repaired. In this study, an optimum structure to achieve relatively uniform contact pressure distribution on joint surface in the mechanical butt joint was suggested by structural analysis. Then, joint resistance in mechanical butt joint of a stacked BSCCO 2223 cable with copper jacket was evaluated experimentally using an experimental setup established based on the structural analysis, to confirm effect of decreasing joint resistance by the joint structure. The results showed that the structure can reduce joint resistance to 140 nΩ for the BSCCO 2223 cable having 1 kA of critical current at liquid nitrogen temperature.
AB - Mechanical butt joint of a high-temperature superconducting (HTS) cable with a metal jacket has been investigated for a remountable HTS magnet where parts can be mounted and demounted iteratively to allow a superconducting magnet for a fusion reactor to be assembled and repaired. In this study, an optimum structure to achieve relatively uniform contact pressure distribution on joint surface in the mechanical butt joint was suggested by structural analysis. Then, joint resistance in mechanical butt joint of a stacked BSCCO 2223 cable with copper jacket was evaluated experimentally using an experimental setup established based on the structural analysis, to confirm effect of decreasing joint resistance by the joint structure. The results showed that the structure can reduce joint resistance to 140 nΩ for the BSCCO 2223 cable having 1 kA of critical current at liquid nitrogen temperature.
KW - Fusion reactors
KW - High-temperature superconductors
KW - Power cable connecting
KW - Superconducting magnets
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U2 - 10.1109/TASC.2010.2100346
DO - 10.1109/TASC.2010.2100346
M3 - Article
AN - SCOPUS:79957925870
SN - 1051-8223
VL - 21
SP - 1995
EP - 1999
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 3 PART 2
M1 - 5699943
ER -