Superconducting fault current limiter and core structure adopting air gap

摘要

The present invention relates to a superconducting fault current limiter incorporating an air gap, which detects an accident current by using the characteristics of a superconductor without any external control device and operates in an extremely short time, Thereby limiting the fault current in the system. In order to prevent saturation, unlike a conventional iron core, a lag having an air gap is usually added to an iron core. In general, a superconductor is short-circuited with a primary winding in a lag of an iron core, And a passing path is connected in parallel.