Title :
Relation between critical current density and flux flow resistivity in Bi2223 bulk element for fault current limiter
Author :
Aritake, T. ; Noda, T. ; Shimizu, H. ; Yokomizu, Y. ; Matsumura, T. ; Murayama, N.
Author_Institution :
Dept. of Electr. Eng., Nagoya Univ., Japan
fDate :
6/1/2003 12:00:00 AM
Abstract :
The relationship between the critical current density and flux flow resistivity in a Bi2223 bulk for fault current limiter application was experimentally investigated. The distributions of Jc and voltage along the longitudinal direction were measured as well as the transport current. As a result, it was found that the flux flow resistivity is higher at positions of lower critical current. Measured results were numerically analyzed to obtain an empirical expression for the flux flow resistivity as a function of the critical current density, accumulated Joule heat and transport current.
Keywords :
bismuth compounds; calcium compounds; critical current density (superconductivity); fault current limiters; flux flow; high-temperature superconductors; strontium compounds; superconducting devices; voltage distribution; Bi2223 bulk element; Bi2Sr2Ca2Cu3O10; Joule heat; critical current density; empirical expression; fault current limiter; flux flow resistivity; longitudinal direction; numerical analysis; overcurrent carrying test; transport current; voltage distributions; voltage-current density characteristics; Conductivity; Critical current; Critical current density; Current measurement; Density measurement; Electrical resistance measurement; Fault current limiters; Fluid flow measurement; High temperature superconductors; Voltage;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.812983