Skip to Content
Find More Like This
Return to Search

Method and apparatus to trigger superconductors in current limiting devices

United States Patent

October 26, 2004
View the Complete Patent at the US Patent & Trademark Office
A method and apparatus for magnetically triggering a superconductor in a superconducting fault current limiter to transition from a superconducting state to a resistive state. The triggering is achieved by employing current-carrying trigger coil or foil on either or both the inner diameter and outer diameter of a superconductor. The current-carrying coil or foil generates a magnetic field with sufficient strength and the superconductor is disposed within essentially uniform magnetic field region. For superconductor in a tubular-configured form, an additional magnetic field can be generated by placing current-carrying wire or foil inside the tube and along the center axial line.
Yuan; Xing (Albany, NY), Hazelton; Drew Willard (Selkirk, NY), Walker; Michael Stephen (Albany, NY)
SuperPower, Inc. (
10/ 606,467
June 26, 2003
The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of Contract No. DE-FC36-03G013033 awarded by the Department of Energy.