Title :
Characteristics of critical current of high-Tc superconducting magnets wound with various tensions
Author :
Ahn, Min Cheol ; Kim, Min Chul ; Bae, Duck Kweon ; Lee, Seungje ; Yoon, Yong Soo ; Lee, Sang Jin ; Ko, Tae Kuk
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
fDate :
6/1/2003 12:00:00 AM
Abstract :
High-Tc superconducting fault current limiters (SFCLs) with a DC reactor limit fault currents using the inductance of the DC reactor. Therefore, manufacture of the DC reactor is very important in developing this type of SFCL. The DC reactor makes use of high-Tc superconducting (HTS) magnets. Because high-Tc superconducting wires are rectangular tape and contain ceramic compounds, the winding method and the tension control of the HTS magnet are different from those of normal conductor magnets. In this research, we design and manufacture a winding machine for HTS magnets. We fabricate four HTS magnets wound with various tension. Characteristics of the fabricated magnets are observed through measurements of critical currents. This paper suggests an optimal winding method of HTS magnets.
Keywords :
critical currents; fault current limiters; high-temperature superconductors; superconducting magnets; superconducting tapes; winding (process); DC reactor inductance; DC reactor manufacture; HTS magnet; critical current characteristics; high-Tc superconducting magnets; optimal winding method; rectangular tape; superconducting fault current limiter; tension control; winding machine; winding method; winding tension; Critical current; Fault current limiters; Fault currents; High temperature superconductors; Inductance; Inductors; Manufacturing; Superconducting filaments and wires; Superconducting films; Superconducting magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.812994
