Patent ID: 7589941

Claim:
A fault current limiter, comprising: a pancake type current limiting module, comprising at least two pancake type bifilar winding modules stacked and connected to each other in series, each of the bifilar winding modules comprising: a bobbin, comprising: a cylindrical main body provided with a wire insertion groove, which has a depth greater than a width of a first superconducting wire that guides the first superconducting wire from one position to another position on the main body; and a cylindrical support base, having at least a pair of metal block-fixing notches, that is disposed under the main body; the first superconducting wire wound around the bobbin in a bifilar manner, which maintains a predetermined tension while a medial portion of an entire length of the first superconducting wire is bent and disposed in the wire insertion groove of the bobbin; and at least a pair of first metal blocks installed and fixed to a pair of metal block-fixing notches of the support base of the bobbin, the first metal blocks being attached to the first superconducting wire while the first superconducting wire maintains the predetermined tension; and a superconducting bypass reactor that has the current limiting module disposed therein, and is connected in parallel with the current limiting module.