Superconducting Fault-Current Limiting Element and the Process for Producing the Same

摘要

[Problem] To prepare a superconducting fault-current limiting element having a high sharing electric field at low cost. ;[Means for Resolution] A superconducting fault-current limiting element including an insulator substrate; a superconductive thin film 3 formed on the insulator substrate; and an alloy layer 4 formed on the superconducting thin film 3, said alloy layer having a room-temperature resistivity higher by twice or more than the room-temperature resistivity of a pure metal, in which, when the superconducting thin film 3 goes into a normal conductive state by an overcurrent, the overcurrent flowing through the superconducting thin film 3 is transferred only to the alloy layer 4.