公开(公告)号：WO2014099344A8

公开(公告)日：2014-07-31

申请号：PCT/US2013072741

申请日：2013-12-03

Applicant: ABB TECHNOLOGY AG ,  BALLARD ROBERT C

Inventor： BALLARD ROBERT C ,  WIMMER EDGAR A

IPC: H01F27/02

CPC classification number: F16K15/00 ,  H01F27/02 ,  Y10T137/0396

Abstract: An enclosure for a dry-type transformer includes a bottom wall, a plurality of sidewalls coupled to and extending from the bottom wall, and a top wall coupled to the sidewalls so as to be spaced from the bottom wall. The top wall includes an opening therein. The bottom wall, sidewalls and top wall define an enclosed space for housing a dry-type transformer. Pressure relief structure is associated with the top wall and has at least one flap constructed and arranged in a closed position, to cover the opening. In the event an arc flash occurs in the enclosure creating gas pressure in the enclosure, the flap is constructed and arranged to move from the closed position to an opened position due to the gas pressure acting thereon, permitting the gas pressure to escape from the top of the enclosure through the opening.

Abstract translation: 用于干式变压器的外壳包括底壁，联接到底壁并从底壁延伸的多个侧壁，以及联接到侧壁以与底壁间隔开的顶壁。 顶壁在其中包括开口。 底壁，侧壁和顶壁限定了用于容纳干式变压器的封闭空间。 减压结构与顶壁相关联并且具有至少一个构造并布置在关闭位置中的盖板以覆盖开口。 如果在外壳中发生电弧闪光而在外壳中产生气体压力，则由于作用在其上的气体压力，活板被构造并布置成从关闭位置移动到打开位置，从而允许气体压力从顶部逸出 的外壳通过开口。

公开(公告)号：CA2860380C

公开(公告)日：2019-11-26

申请号：CA2860380

申请日：2012-12-19

Applicant: ABB TECHNOLOGY AG

Inventor： SINGH BANDEEP ,  HARTMANN THOMAS A ,  BALLARD ROBERT C

IPC: H01F27/23

Abstract: A protective coating system for application to exposed surfaces of a transformer core prevents corrosion of the core. The protective coating is suitable for use in industrial and marine environments where many factors impact the life of the transformer core. The protective coating comprises at least three coating layers. The first coating layer is an inorganic zinc silicate primer. The second coating layer is a polysiloxane. The third coating layer is a room temperature or high temperature vulcanizing silicone rubber. A silicone rubber sealant may be further applied to outer edge surfaces of the core.

公开(公告)号：CA2773980A1

公开(公告)日：2011-03-17

申请号：CA2773980

申请日：2010-09-10

Applicant: ABB TECHNOLOGY AG

Inventor： LIM JONG-YUN ,  LIM CHANG-YEOL ,  HA YOUNG-JIN ,  CHANG HYEON LEE ,  JOHNSON CHARLES W ,  YANG HAE-SUN ,  MURILLO RAFAEL ,  BALLARD ROBERT C

IPC: H01F27/08

Abstract: A method of manufacturing a transformer that includes forming a disc-wound coil using a plurality of pre-formed cooling ducts. Each cooling duct may be supported by a support pipe secured between walls of the cooling duct, or by a removable insert. First and second conductor layers are formed, each of which include plurality of disc windings arranged in an axial direction of the disc-wound coil. A spacer layer is formed between the first and second conductor layers to form a plurality of axially-extending passages. The cooling ducts are slid into the axially- extending passages so as to be disposed between the first and second conductor layers.

公开(公告)号：CA2860380A1

公开(公告)日：2013-06-27

申请号：CA2860380

申请日：2012-12-19

Applicant: ABB TECHNOLOGY AG

Inventor： SINGH BANDEEP ,  HARTMANN THOMAS A ,  BALLARD ROBERT C

IPC: H01F27/23

Abstract: A protective coating system for application to exposed surfaces of a transformer core prevents corrosion of the core. The protective coating is suitable for use in industrial and marine environments where many factors impact the life of the transformer core. The protective coating comprises at least three coating layers. The first coating layer is an inorganic zinc silicate primer. The second coating layer is a polysiloxane. The third coating layer is a room temperature or high temperature vulcanizing silicone rubber. A silicone rubber sealant may be further applied to outer edge surfaces of the core.