Gec Alsthom Electromecanique S.a.

Alcatel

Gec Alsthom T&d Sa

Pascal Estop

Thierry Verhaege

Van Doan Pham

Alain Lacaze

Christian Cottevieille

Alain Petitbon

Eric Ranchy

Stephane Cazabat

Serge Poullain

Sophie Crouzy

Nadia Broqua

Electronic power module, and electronic power system comprising a

A superconducting switch comprising a portion of cable including a resistive central strand that is non-superconducting having a plurality of super-conducting strands or of superconductors twisted thereabout, and separated from the central strand by electrical insulation, the cable as a whole being insulated from the external cooling medium by thermal insulation. The central strand is electrically connected to the superconducting strands or the superconductors at each end of a portion of cable. A portion of the length of the resistive central strand extends outside the cable at a point along the length of the portion of said cable and is coupled to a control device situated outside the cooling medium, wherein the control device injector an electrical current into the circuit formed by the resistive central strand that is connected at its ends to the superconducting strands or to the superconductors.

Superconducting switch and application to a charger for a

The present invention relates to a superconductive coil assembly which may be used particularly for a current limiter, the coil assembly comprising a plurality of coaxial cylindrical coils electrically connected in series, each coil comprising two windings of superconductive material electrically connected in parallel, arranged coaxially and wound in opposite directions, wherein in each coil, the windings are separated by a material which has a surface resistance in the radial direction lying in the range 10.sup.-5 .OMEGA..m.sup.2 to 10.sup.-2 .OMEGA..m.sup.2 at the temperature of the cryostat, and in which the strands which constitute the superconductive wires may themselves be covered with a layer of the same material.

Superconductive coil assembly particularly for a current limiter, and a

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Vitry sur Seine, France

Pascal Estop