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    HIGH-TEMPERATURE SUPERCONDUCTIVE ELEMENT AND ITS MANUFACTURING METHOD
    1.
    发明专利
    HIGH-TEMPERATURE SUPERCONDUCTIVE ELEMENT AND ITS MANUFACTURING METHOD 失效

    公开(公告)号：JP2001217470A

    公开(公告)日：2001-08-10

    申请号：JP2000368367

    申请日：2000-12-04

    Applicant: ABB RESEARCH LTD

    Inventor： CHEN MAKAN DR ,  PAUL WILLI

    IPC: H01L39/24 ,  H01L39/14 ,  H01L39/16 ,  H02H9/04

    Abstract: PROBLEM TO BE SOLVED: To provide a high-temperature superconductive element for preventing hot spots. SOLUTION: A contact formation layer (4) is provided between a high- temperature superconductor (1) and an electrical bypass (2), and contact formation layer (4) has anisotropic, electrical conductivity, thus assuring the low- contact resistance between the superconductor 1 and the bypass (2) without increasing admittance in a main current direction (3). The anisotropy is generated by the discontinuous surface of the contact formation layer (4). For example, the anisotropy is generated by the discontinuous surface in the contact formation layer (4) by separating into regions (41) that are not interconnected in the contact formation layer (4). Further, the contact formation layer (4) is applied to the superconductor (1) by cosintering or sintering post process, and then is joined or soldered to the bypass (2) by an intermediated layer (5).

    HIGH-TEMPERATURE SUPERCONDUCTOR ELEMENT
    2.
    发明专利
    HIGH-TEMPERATURE SUPERCONDUCTOR ELEMENT 失效

    公开(公告)号：JP2002076455A

    公开(公告)日：2002-03-15

    申请号：JP2001164843

    申请日：2001-05-31

    Applicant: ABB RESEARCH LTD

    Inventor： CHEN MAKEN ,  PAUL WILLI

    IPC: H01L39/24 ,  H01L39/16

    Abstract: PROBLEM TO BE SOLVED: To prevent formation or enlargement of cracks perpendicularly in the current direction in a high-temperature superconductor element. SOLUTION: In this high-temperature superconductor element having a superconductor 1 an electrical bypass (2), thermal coefficients of expansion αSC, αBP are chosen such that the bypass applies compression pressure to the superconductor. According to the invention, this situation occurs even when there is a considerable temperature difference ΔT between the bypass and the superconductor, as can be induced by fault currents in the case of current limiters. Formation or enlargement of cracks in the superconductor is prevented by the thermomechanical compressive pressure. The bypass is preferably made of steel, and is soldered or bond onto the superconductor with a press fit.

    HIGH-TEMPERATURE SUPER CONDUCTING ELEMENT
    3.
    发明专利
    HIGH-TEMPERATURE SUPER CONDUCTING ELEMENT 失效

    公开(公告)号：JP2001223399A

    公开(公告)日：2001-08-17

    申请号：JP2000368368

    申请日：2000-12-04

    Applicant: ABB RESEARCH LTD

    Inventor： CHEN MAKAN DR ,  PAUL WILLI

    IPC: C08K3/00 ,  C08K7/02 ,  C08L63/00 ,  C08L101/00 ,  H01L39/16

    Abstract: PROBLEM TO BE SOLVED: To reduce thermo-mechanical stress which occurs during cooling of a high-temperature super conducting element. SOLUTION: During cooling of the high-temperature super conducting element where an electric-conductive transition layer 3 of polymer composite material base is provided between a super conducting body 1 and an electric by-pass 2, a thermo-mechanical stress occurs at the transition layer. To reduce it and to prevent formation of crack, thermal expansion factor of the transition layer 3 is made smaller. This is done by adding a polymer composite material with an appropriate filler material 32 such as SiO2, Al2O3, or AlN.

    LOW-TEMPERATURE DEVICE
    4.
    发明专利
    LOW-TEMPERATURE DEVICE 失效

    公开(公告)号：JP2001148520A

    公开(公告)日：2001-05-29

    申请号：JP2000298332

    申请日：2000-09-29

    Applicant: ABB RESEARCH LTD

    Inventor： PAUL WILLI

    IPC: F25D3/10 ,  F17C3/08 ,  F17C13/00 ,  H01H33/66 ,  H01L39/04 ,  H02H9/02

    Abstract: PROBLEM TO BE SOLVED: To provide a low-temperature device in the technical field of transmission, that has a superconducting element or an element to be cooled in a cryostat. SOLUTION: When electrical faults occur, through heat conduction via an electric cable 4 of an element 3, a vacuum switch 6 is provided to prevent heat from being introduced into a cryostat. The vacuum switch 6 is integrated into a bushing 5 in the electrical cable 4 so that the heat insulation of the cryostat 1 is completely achieved by the vacuum.

    CURRENT-LIMITING DEVICE UTILIZING SUPERCONDUCTING TRANSFORMER
    5.
    发明专利
    CURRENT-LIMITING DEVICE UTILIZING SUPERCONDUCTING TRANSFORMER 失效

    公开(公告)号：JP2000354326A

    公开(公告)日：2000-12-19

    申请号：JP2000133141

    申请日：2000-05-02

    Applicant: ABB RESEARCH LTD

    Inventor： ZUEGER HARRY ,  BONMANN DEITRICH ,  PAUL WILLI

    IPC: H01F6/04 ,  H01F36/00 ,  H02H7/00 ,  H02H9/02

    Abstract: PROBLEM TO BE SOLVED: To obtain a current-limiting device capable of continuing to supply electric power to a load, even if a short circuit occurs. SOLUTION: In a current-limiting device based on a superconducting transformer 30, electric power can be supplied to a load 21 without interruption by providing an auxiliary winding 14 parallel to the superconducting primary winding 12 of the transformer 30. The auxiliary winding 14 carries an excess current if a short circuit occurs, thereby enabling the primary winding 12 heated by this current-limiting device to be cooled. The instant the short circuit is removed, the primary winding is made capable of carrying a rated current again without loss. The auxiliary winding 14 made of a normal conducting material has additional stray impedance.

    LIMITADOR DE CORRIENTE SUPERCONDUCTOR RESISTIVO.
    6.
    发明专利
    LIMITADOR DE CORRIENTE SUPERCONDUCTOR RESISTIVO. 未知

    公开(公告)号：ES2316427T3

    公开(公告)日：2009-04-16

    申请号：ES01811059

    申请日：2001-10-31

    Applicant: ABB RESEARCH LTD

    Inventor： CHEN MAKAN ,  PAUL WILLI ,  LAKNER MARTIN ,  RHYNER JAKOB

    IPC: H01L39/16

    Abstract: Limitador de corriente superconductor resistivo con un circuito impreso aplicado sobre un soporte de un compuesto conductor que comprende un superconductor de alta temperatura y una derivación eléctrica, donde el circuito impreso comprende dos secciones rectilíneas de circuito impreso (10, 11) con la anchura de circuito impreso b y un elemento de esquina (15) dispuesto entre las dos secciones rectilíneas de circuito impreso (10, 11), las dos secciones rectilíneas de circuito impreso (10, 11) presentan un primer corte transversal conductor transversal Q1, el elemento de esquina (15) comprende una sección de anillo circular (12) con una capa superconductora (20) no modificada en cuanto al grosor con respecto a las secciones rectilíneas de circuito impreso (10, 11) con la anchura b, que une las dos secciones rectilíneas de circuito impreso (10, 11), caracterizado porque la sección de anillo circular (12) presenta localmente un segundo corte transversal conductor radial, que es diferente del primer corte transversal conductor Q1 con respecto a geometría y/o conductividad.

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