Title :
Ramp-rate limitation test results of the Nb3Sn Demo Poloidal Coil (DPC-EX)
Author :
Nishi, M. ; Nakajima, H. ; Ando, T. ; Hiyama, T. ; Takahashi, Y. ; Okuno, K. ; Yoshida, K. ; Kato, T. ; Kawano, K. ; Isono, T. ; Sugimoto, M. ; Koizumi, N. ; Hamada, K. ; Sasaki, T. ; Imahashi, K. ; Iwamoto, S. ; Ebisu, H. ; Ouchi, T. ; Ohtsu, K. ; Okayam
Author_Institution :
Superconducting Magnet Lab., JAERI, Ibaraki, Japan
Abstract :
As a high-field pulse-poloidal test coil in the development program of superconducting coils for fusion machines, a 1 m-inner diameter superconducting coil named DPC-EX wound with 10 kA Nb3 Sn cable-in-conduit forced-cooled conductor was fabricated and its various performances were investigated. In its second test, the ramp-rate limitation phenomenon, i.e. the dependence of the coil current at quench on the current ramp speed, was studied in detail and a lot of important data for the design of large pulse coils were achieved
Keywords :
fusion reactor design; fusion reactor materials; niobium compounds; superconducting coils; 1 m-inner diameter superconducting coil; 10 kA Nb3Sn cable-in-conduit forced-cooled conductor; DPC-EX; Nb3Sn; Nb3Sn Demo Poloidal Coil; fusion machines; high-field pulse-poloidal test coil; large pulse coils; ramp-rate limitation test results; superconducting coils; Communication channels; Conductors; Cooling; Magnetic fields; Niobium-tin; Superconducting cables; Superconducting coils; Superconducting magnets; Testing; Wounds;
Conference_Titel :
Fusion Engineering, 1993., 15th IEEE/NPSS Symposium on
Conference_Location :
Hyannis, MA
Print_ISBN :
0-7803-1412-3
DOI :
10.1109/FUSION.1993.518359
