| 摘要 |
A superconducting fault current limiter is provided which is capable of ensuring a sufficient impedance for restricting an excessive current flow caused by an accident and completely satisfying a canceling condition of a magnetic field during normal operation without using an iron core. The fault current limiter includes first superconducting coils (1) and second superconducting coils (2) including windings of superconducting lines. First superconducting coils (1) are electrically connected in series with second superconducting coils (2). First superconducting coils (1) and second superconducting coils (2) generate magnetic fields in opposite directions by application of currents. The fault current limiter further includes a component (R2) selected from a group consisting of a resistor and an inductor, the component being electrically connected in parallel with second superconducting coils (2). First superconducting coils (1) and second superconducting coils (2) are alternately arranged in a ring form such that a coil axis is circular. <IMAGE> |
