Abstract
Fault current limiters (FCLs) are devices to suppress fault currents in electric power systems, and they play an extremely important role in the electric power industry. This paper first reviews the necessity of FCLs, and the research and development status of various types of FCLs in the world. Second, an experimental evaluation of a single-phase FCL system is provided. This FCL system was fabricated by assembling the various components required, such as superconducting coils, high-Tc superconducting current leads, refrigeration devices, etc. Current limitation was completed almost instantaneously, and fully adequate current limiting performance was achieved.
