Nexans

Frank Breuer

Joachim Bock

Steffen Elschner

Heribert Walter

Simon Krämer

Werner Kohler

Zülfükil Tas

Electric fault current limiter has superconducting elements inside a cryogenic vessel and bushings for connecting an external circuit. The electric fault current limiter () includes a cryogenic vessel () and superconducting assemblies () including high temperature type superconducting elements (HTSC) immersed in a liquid coolant () such as liquefied nitrogen. Bushings () with conductors () are associated with a main body () of the vessel () such that the conductors () extend horizontally from a surrounding space into an ullage space () situated between a level () of the liquid coolant () inside the vessel () and a cover (). The arrangement of the bushings () according to the invention allows for removing the cover () without dismantling electrical connections between the current limiter () and a circuit to be protected as is necessary with prior art limiters.

Electric fault current limiter having superconducting elements inside a cryogenic vessel and bushings for connecting an external circuit

The present invention is directed to a superconductor componentsuitable as fault current limiter comprising a superconductor bodyprovided with a shunt coiland an electrical contacton at least one end of the superconductor bodywherein the superconductor componentis provided with means for reducing currentsinduced within the electrical contacts

Superconductor component with improved electrical contact

The present invention is directed to a superconducting current limiting component, particularly to a ceramic high temperature superconducting current limiting component which is self triggering, comprising a coil () made of ceramic high temperature superconductor material, wherein around the outer surface of the coil () made of ceramic high temperature superconductor material a second coil () is applied as a shunt and, preferably, wherein the coil () made of ceramic high temperature superconductor material is applied onto a hollow cylindrical body () made of a ceramic high temperature superconductor material.

Compact superconducting current limiting component in coil configuration with low inductance

A resistive current limiter with at least one tubular high temperature superconductor body is disclosed provided with a shunt of a normal conducting material wound in coil configuration around the surface of the tubular superconductor body.

Superconducting resistive current limiter with a shunt

The present invention is directed to a cylindrically shaped superconductor component particularly useful as resistive current limiter composed of a cylindrical superconductor body, in particular of high temperature superconductor material, provided vertically to its longitudinal axis with a number of azimuthal slots, incised in parallel and alternating, and one longitudinal slotrunning parallel to the longitudinal axis over almost the whole length of the cylindrical superconductor body.

Cylindrically shaped superconductor component and its use as resistive current limiter

The present invention relates to a superconducting current limiting device comprising a superconductor component () wherein each superconductor component () comprises a superconductor body () on which a coil () is wound the coil being electrically connected to the superconductor body () wherein in the superconducting current limiting device a magnetic field is generated on transition of the superconductor from the superconducting state to the normal conducting state.

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Bonn, Germany

Frank Breuer