Title :
Increase in transient resistance of Bi2223 superconducting bulk by applying external magnetic field
Author :
Kato, E. ; Noda, T. ; Shimizu, H. ; Yokomizu, Y. ; Matsumura, T. ; Murayama, N.
Author_Institution :
Dept. of Electr. Eng., Nagoya Univ., Japan
fDate :
3/1/2001 12:00:00 AM
Abstract :
The critical current and the transient change of resistance in a Bi2223 bulk applied DC magnetic field were experimentally investigated. Taking account of the decreasing rate of critical current and the increasing rate of resistance obtained from the measurement, we estimated the condition under which the gross resistance of the bulk rises while maintaining the critical current and bulk volume. Furthermore, it is discussed whether the bulk should be used with the applied magnetic field or not from the viewpoint of the bulk volume required to obtain the critical current and resistance designated
Keywords :
bismuth compounds; calcium compounds; critical current density (superconductivity); fault current limiters; high-temperature superconductors; strontium compounds; superconducting devices; Bi2223 superconducting bulk; Bi2Sr2Ca2Cu3O; applied DC magnetic field; applied magnetic field; critical current; external magnetic field; superconducting fault current limiters; transient resistance; Conductors; Copper; Critical current; Current measurement; Electric resistance; Fault current limiters; High temperature superconductors; Magnetic field measurement; Magnetic fields; Power system transients;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
