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    POLYMER CONCRETE ELECTRICAL INSULATION SYSTEM
    23.
    发明专利
    POLYMER CONCRETE ELECTRICAL INSULATION SYSTEM 未知

    公开(公告)号：CA2701333A1

    公开(公告)日：2009-04-16

    申请号：CA2701333

    申请日：2007-10-08

    Applicant: ABB RESEARCH LTD

    Inventor： CLIFFORD STEPHEN ,  SOYEUX FAUSTINE ,  KRIVDA ANDREJ ,  TILLIETTE VINCENT ,  ZANT NIKOLAUS ,  SINGH BANDEEP ,  GREUTER FELIX ,  RITZER LEOPOLD

    IPC: H01B3/40 ,  C08K3/36 ,  C08L63/00

    Abstract: Polymer concrete electrical insulation system comprising a hardened epoxy resin composition filled with an electrically non-conductive inorganic filler composition, wherein said polymer concrete electrical insulation system optionally may contain further additives, and wherein (a) the epoxy resin composition is based on a cycloaliphatic epoxy resin; (b) the inorganic filler composition is present within the range of about 76 % by weight to about 86 % by weight, calculated to the total weight of the polymer concrete electrical insulation system; (c) the inorganic filler composition comprises a uniform mixture of (i) an inorganic filler with an average grain size within the range of 1 micron (µm) to 100 micron (µm) [component c(i)], and (ii) an inorganic filler with an average grain size within the range of 0.1 mm (100 micron) to 2 mm [component c(ii)]; wherein (d) the inorganic filler with an average grain size within the range of 1 micron (µm) to 100 micron (µm) [component c(i)] is present in an amount within the range of 22 % to 42 %, calculated to the total weight of the polymer concrete electrical insulation system; and (e) the inorganic filler with an average grain size within the range of 0.1 mm to 2 mm [component c(ii)] is present within the range of 41 % to 61 % by weight, calculated to the total weight of the polymer concrete electrical insulation system; and method of producing said electrical insulation system.

    25.
    发明专利
    未知

    公开(公告)号：DE59609316D1

    公开(公告)日：2002-07-18

    申请号：DE59609316

    申请日：1996-04-23

    Applicant: ABB RESEARCH LTD

    Inventor： BRUEHL DR ,  JUELKE DR ,  KALTENEGGER DR ,  NIEMEYER DR ,  RITZER LEOPOLD

    IPC: H01H33/98 ,  H01H33/70 ,  H01H33/76

    Abstract: The arc extinguishing chamber has a pair of electrical power connections (1,2) and in between are switching contacts that are in the form of fixed spring contacts (3) and an axially movable pin (4). The chamber has a toroidal shaped heating space (7) formed between a cylindrical isolator (8) and an isolating nozzle stage (9). A ring shaped channel is created (10) between the parts. An arc extinguishing material is formed as a coating and during an arc generating switching operation, when the contacts separate, extinguishing gas is produced. The material has a microcapsular structure that releases that gas.

    Insulator for high voltage switchgear
    26.
    发明专利
    Insulator for high voltage switchgear 未知

    公开(公告)号：DE19621710A1

    公开(公告)日：1997-12-04

    申请号：DE19621710

    申请日：1996-05-30

    Applicant: ABB RESEARCH LTD

    Inventor： GREUTER FELIX DR ,  RITZER LEOPOLD

    IPC: H02G5/06 ,  H01B17/14 ,  H02B5/06

    Abstract: An insulator for installation in an HV switching plant has a body (4) of hardened resin and at least one moulded metal armature 91) subject to high voltage and at least one electrode (10) cast into the body with connecting parts (12). The electrode(s) is/are made of a cast material containing at least one coarse and at least one fine electrically conducting filling agent. For the former, nickel flakes or small balls are used and for the latter, powdered rust is used. The nickel flakes or balls have a size between two and a hundred microns, the majority being about thirty microns in size. The rust particles have a size of 5 nanometres up to one micron.

    HIGH VOLTAGE INSTALLATION
    29.
    发明专利
    HIGH VOLTAGE INSTALLATION 未知

    公开(公告)号：CA2164481A1

    公开(公告)日：1996-06-29

    申请号：CA2164481

    申请日：1995-12-05

    Applicant: ABB RESEARCH LTD

    Inventor： JUELKE ELIAS ,  BRUEHL BODO ,  RITZER LEOPOLD

    IPC: H02B13/025 ,  H01B3/10 ,  H02B13/02 ,  H02G5/06 ,  H05K5/04

    Abstract: This high-voltage installation has a metallic housing (1, 5) which is filled with insulating gas and surrounds voltage-carrying active parts (3, 7). It is provided with insulators for the electrically insulating support of the active parts (3, 7) in the housing (1, 5), with drive means formed in an electrically insulating manner for the actuation of the mobile sections of the active parts and with at least one protective coating (11) which covers at least the insulators and the drive means formed in an electrically insulating manner. It is intended to provide a high-voltage installation having a protective layer which is impermeable to liberated chemically aggressive decomposition products, in particular hydrofluoric acid, during the entire service life of the installation. This is achieved by the protective coating (11) being formed in such a way that decomposition products formed in the insulating gas during operation of the installation penetrate into the protective coating (11), and by the protective coating (11) having at least one component which reacts with the decomposition products to form at least one solid, nonhygroscopic reaction product. The reaction product produced by the reaction remains thereafter in the protective coating (11).

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