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System and method for quench protection of a superconductor

United States Patent

March 11, 2008
View the Complete Patent at the US Patent & Trademark Office
A system and method for protecting a superconductor from a quench condition. A quench protection system is provided to protect the superconductor from damage due to a quench condition. The quench protection system comprises a voltage detector operable to detect voltage across the superconductor. The system also comprises a frequency filter coupled to the voltage detector. The frequency filter is operable to couple voltage signals to a control circuit that are representative of a rise in superconductor voltage caused by a quench condition and to block voltage signals that are not. The system is operable to detect whether a quench condition exists in the superconductor based on the voltage signal received via the frequency filter and to initiate a protective action in response.
Huang; Xianrui (Clifton Park, NY), Sivasubramaniam; Kiruba Haran (Clifton Park, NY), Bray; James William (Niskayuna, NY), Ryan; David Thomas (Niskayuna, NY)
General Electric Company (Niskayuna, NY)
10/ 878,589
June 28, 2004
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH & DEVELOPMENT This invention was made with Government support under contract number DE-FC36-02GO11100 awarded by U.S. Dept. of Energy. The Government has certain rights in the invention.