公开(公告)号：US20190218336A1

公开(公告)日：2019-07-18

申请号：US16246631

申请日：2019-01-14

Applicant: ABB Schweiz AG

Inventor： Saskia Scheel ,  Spiros Tzavalas ,  Chau-Hon Ho

IPC: C08G59/72 ,  C08G59/24 ,  C08L63/00 ,  H01B3/40

CPC classification number: C08G59/72 ,  C08G59/24 ,  C08G59/68 ,  C08L63/00 ,  C08L2203/206 ,  H01B3/40 ,  H01L23/293

Abstract: An epoxy resin composition in an outdoor application and/or a high voltage application of an electrical insulation is described. The epoxy resin composition includes an aliphatic epoxy resin; and a catalyst system. The catalyst system is present in a content of 0.5-5 phr in the epoxy composition. The catalyst system includes at least one of the group consisting of: BX amine complex and blocked super acid. The epoxy resin composition is substantially anhydride-free. Further, a power product including insulation is described. The insulation includes a hydrophobic, cycloaliphatic epoxy resin; and a catalyst system. The catalyst system is present in a content of 0.5-5 phr in the epoxy composition. The catalyst system includes at least one of the group consisting of: BX amine complex and blocked super acid. The epoxy resin composition is substantially anhydride-free.

公开(公告)号：US20170301449A1

公开(公告)日：2017-10-19

申请号：US15586201

申请日：2017-05-03

Applicant: ABB Schweiz AG

Inventor： Adam Michalik ,  Patricia Ricketts ,  Massimo Carmignoto ,  Jayram Yadava ,  Roberto Zannol ,  Milijenko Hrkac ,  Allesandro Maltozzi ,  Claire Pitois ,  Emmanouil Logakis ,  Harald Martini ,  Ilario Scian ,  Orlando Girlandra ,  Rudi Velthuis ,  Spiros Tzavalas

IPC: H01F27/00 ,  H01F27/10 ,  H01F27/23 ,  H01F27/02 ,  H01F27/24 ,  H01F27/28 ,  H02J3/18

CPC classification number: H01F27/006 ,  H01F27/008 ,  H01F27/025 ,  H01F27/10 ,  H01F27/12 ,  H01F27/23 ,  H01F27/24 ,  H01F27/28 ,  H01F27/303 ,  H01F27/322 ,  H01F27/323 ,  H01F30/12 ,  H01F2027/406

Abstract: An electrical transformer includes a coil pack including windings, and spacers axially spacing turns of the windings from one another and being formed of a thermoplastic material. Sticks couple and position the spacers. The coil pack has high resistivity to creep and permits temperature rise without degradation of transformer insulation, providing for extended service life and unique methods of transformer system upgrade.

公开(公告)号：US20170194826A1

公开(公告)日：2017-07-06

申请号：US15461676

申请日：2017-03-17

Applicant: ABB Schweiz AG

Inventor： Andrej Krivda ,  Chau-Hon Ho ,  Cherif Ghoul ,  Jan Van-Loon ,  Lei Xie ,  Spiros Tzavalas

IPC: H02K3/30 ,  H01B13/06 ,  H01B3/46 ,  H01B7/02 ,  H01B3/44 ,  H01B3/30

CPC classification number: H02K3/30 ,  H01B3/306 ,  H01B3/308 ,  H01B3/441 ,  H01B3/443 ,  H01B3/46 ,  H01B7/02 ,  H01B13/06 ,  H02K3/40

Abstract: It is proposed a wound conductor arrangement for an electrical machine: the wound conductor includes ma wound conductor comprising an electrically conductive material having an electrical conductivity value, and an insulation layer being at least partially provided around the wound conductor by a shrinkable tube comprising insulating material. The wound conductor arrangement further includes an intermediate layer provided between the wound conductor and the insulation layer. The intermediate layer has a conductivity value less than the conductivity value of the wound conductor. Further, an electric machine is proposed including the wound conductor arrangement. A method is described for insulating a wound conductor for an electrical machine.

公开(公告)号：US10685773B2

公开(公告)日：2020-06-16

申请号：US14652716

申请日：2013-12-05

Applicant: ABB SCHWEIZ AG

Inventor： Adam Michalik ,  Patricia Ricketts ,  Massimo Carmignoto ,  Jayram Yadava ,  Roberto Zannol ,  Miljenko Hrkac ,  Alessandro Mattozzi ,  Claire Pitois ,  Emmanouil Logakis ,  Harald Martini ,  Ilario Scian ,  Orlando Girlanda ,  Rudi Velthuis ,  Spiros Tzavalas

IPC: H01F27/10 ,  H01F27/14 ,  B29C45/00 ,  H01F27/24 ,  H01F27/28 ,  H01F41/00 ,  H01B3/47 ,  H01F27/32 ,  B29K101/12 ,  B29K309/00 ,  B29K105/12 ,  B29L31/34

Abstract: The present invention relates to an electrical transformer comprising an electrical insulator and a winding of an electrical conductor around a core, said insulator being formed of an essentially non-porous composite material comprising a resin matrix and up to 85% by weight of insulating fibres surrounded by the resin matrix, the composite material having a maximum moisture content of less than 0.5% by weight at 23° C. and 50% relative humidity.