Title :
1.5 kA Bi-2223 HTS current leads for SMES magnets
Author :
Jang, Hyun-Man ; Oh, Sang-Soo ; Ha, Hong-Soo ; Cho, Jeon-Wook ; Ha, Dong-Woo ; Kim, Hae-Jong ; Seong, Ki-Chul ; Kwon, Young-Kil ; Ryu, Kang-Sik ; Kim, Sang-Hyun
Author_Institution :
Korea Electrotechnol. Res. Inst., Changwon, South Korea
fDate :
3/1/2001 12:00:00 AM
Abstract :
1.5 kA class Bi-2223 HTS current leads for superconducting magnetic energy storage (SMES) magnets were fabricated and tested. The HTS leads were composed of Bi-2223/Ag-1 at%Au tapes fabricated by PIT process and stainless steel former and they were connected to conventional gas-cooled copper leads, Using a calorimetric method, heat input to the liquid helium through the HTS leads was estimated to be 0.395 W/lead when the warm end part´s temperature was 65 K, which was slightly greater than the calculated value of 0.35 W/lead. The measured critical current of the HTS leads was about 1.6 kA when the warm end part´s temperature was 80 K. This measured value was well consistent with computed values
Keywords :
bismuth compounds; calcium compounds; copper compounds; high-temperature superconductors; lead compounds; silver; strontium compounds; superconducting cables; superconducting magnet energy storage; superconducting magnets; superconducting tapes; (BiPb)2Sr2Ca2Cu3O 10-Ag; (BiPb)2Sr2Ca2Cu3O 10-Ag HTSC current leads; 1.5 kA; 1.6 kA; 65 K; 80 K; PIT process; SMES magnets; calorimetric method; critical current; heat input; liquid helium; stainless steel former; superconducting magnetic energy storage; Copper; Critical current; Current measurement; Helium; High temperature superconductors; Magnets; Samarium; Steel; Superconducting magnetic energy storage; Testing;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
