Title :
R&D status of fault current limiters for utility applications
Author :
Noe, M. ; Steurer, M.
Author_Institution :
Forschungszentrum Karlsruhe, Inst. for Tech. Phys., Karlsruhe
Abstract :
Power systems have to be designed to withstand mechanical and thermal stresses caused by short-circuits. Fault current limiters (FCLs) are new and attractive devices to reduce short-circuit current levels significantly without adding additional impedance during normal operation. This paper summarizes the present R&D status of new FCL technologies, in particular superconducting FCLs (SCFCLs). At present SCFCLs are not commercially available but first field tests of medium voltage demonstrators showed the technical feasibility. In general, different types of SCFCLs have been developed and it depends very much on the specific application which type fits best the requirements. For the future, the two major R&D objectives are to develop high voltage SCFCLs (>100 kV) and simple and low cost SCFCLs for medium voltage levels (6-36 kV)
Keywords :
electricity supply industry; fault current limiters; power system faults; short-circuit currents; superconducting devices; superconductivity; 6 to 36 kV; R&D status; fault current limiters; mechanical stresses; medium voltage demonstrators; short-circuit current reduction; superconducting FCL; thermal stresses; utility applications; Fault current limiters; Impedance; Medium voltage; Power system faults; Power system interconnection; Power system measurements; Research and development; Superconducting coils; Testing; Type II superconductors; Fault current limiter; short-circuit current; superconductivity;
Conference_Titel :
Power Engineering Society General Meeting, 2006. IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0493-2
DOI :
10.1109/PES.2006.1709166
