Title :
MgB2 Sample Tests for Possible Applications of Superconducting Fault Current Limiters
Author :
Ye, Lin ; Majoros, M. ; Campbell, A.M. ; Coombs, T. ; Harrison, S. ; Sargent, P. ; Haslett, M. ; Husband, M.
Author_Institution :
CAU, Beijing
fDate :
6/1/2007 12:00:00 AM
Abstract :
Cheap to make and easy to shape, Magnesium Di-boride (MgB2) throws the field of applied superconductivity wide open. Great efforts have been made to develop a superconducting fault current limiter (SFCL) using MgB2. With a superconducting transition temperature of 39 K, MgB2 can be conveniently cooled with commercial cryocoolers. A cryogenic desktop test system, an ac pulse generation system and a real time data acquisition program in LabView/DAQmx were developed to investigate the quench behavior of MgB2 wires under pulse overcurrents at 25 K in self-field conditions. The experimental results on the current limitation behavior show the possibilities for using MgB2 for future SFCL applications.
Keywords :
fault current limiters; magnesium compounds; superconducting device testing; superconducting devices; MgB2; ac pulse generation system; cryogenic desktop test system; current limitation behavior; quench behavior; real time data acquisition program; superconducting fault current limiters; superconducting transition temperature; temperature 25 K; wires; Automatic testing; Cryogenics; Fault current limiters; Magnesium; Pulse generation; Real time systems; Shape; Superconducting transition temperature; Superconductivity; System testing; Cryocooler; LabView/DAQ; current limitation; magnesium diboride $({rm MgB}_{2})$; overcurrent; quench; real time data acquisition; superconducting fault current limiter (SFCL);
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2007.898345
