Title :
Study on cause of quenching at the joint between multifilamentary superconducting cable and normal conducting cable using 3D FEM
Author :
Takahashi, N. ; Nakata, T. ; Fujii, Y. ; Funaki, K. ; Takeo, M.
Author_Institution :
Dept. of Electr. Eng., Okayama Univ., Japan
fDate :
9/1/1992 12:00:00 AM
Abstract :
Investigates the cause of quenching at the joint between a multifilamentary superconducting cable and a normal conducting cable. The 3D current distribution is analyzed. It is found that the cause of quenching is the extreme concentration of current in the joint due to the pronounced skin effect at liquid helium temperature. The mechanism of the concentration of current which is affected by the twist pitch and skin depth is also clarified quantitatively by numerical analysis
Keywords :
cable jointing; finite element analysis; quenching (thermal); skin effect; superconducting cables; 3D FEM; 3D current distribution; conducting cable; current concentration; extreme concentration; liquid helium temperature; multifilamentary superconducting cable; numerical analysis; quenching; skin depth; skin effect; twist pitch; Conductivity; Conductors; Current distribution; Eddy currents; Joining processes; Magnetic analysis; Multifilamentary superconductors; Power cables; Superconducting cables; Superconducting magnets;
Journal_Title :
Magnetics, IEEE Transactions on
