Title :
The change of coupling losses in aluminum-stabilized superconductors due to the Hall effect
Author :
Sumiyoshi, F. ; Kawabata, S. ; Ono, H. ; Kawashima, T. ; Mito, T. ; Yanagi, N. ; Takahata, K. ; Satow, T. ; Yamamoto, J.
Author_Institution :
Kagoshima Univ., Japan
fDate :
6/1/1995 12:00:00 AM
Abstract :
The change of coupling losses in aluminum-stabilized superconductors due to the Hall effect is investigated experimentally and numerically. The Hall effect is here taken to be an interaction between the inter-strand coupling current and the external DC magnetic field. The loss measurement of the R&D conductor for the helical coil of the Large Helical Device is carried out under the coexistence of the transverse and the longitudinal magnetic fields. The measured coupling loss of the real conductor induced by the changing transverse magnetic field is increased by the existence of the longitudinal DC field. These loss features are compared with those by numerical analysis, based on the two dimensional finite element method, of a real conductor with complex cross-sectional structure.<>
Keywords :
Hall effect; finite element analysis; loss measurement; losses; magnetic fields; niobium alloys; power cable testing; superconducting cables; titanium alloys; 2D finite element method; Hall effect; NbTi; R&D; cables; coupling loss; coupling losses; inter-strand coupling current; magnetic fields; measurement; numerical analysis; superconductors; Conductors; Couplings; Finite element methods; Hall effect; Loss measurement; Magnetic field measurement; Numerical analysis; Research and development; Superconducting coils; Superconductivity;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
