公开(公告)号：US20130113597A1

公开(公告)日：2013-05-09

申请号：US13721670

申请日：2012-12-20

Applicant: ABB Technology AG

Inventor： Carlos ROY ,  Rafael Murillo ,  Jens Tepper ,  Jasmin Smajic ,  Jesús Letosa Fleta ,  Antonio Usón ,  Maria Teresa Villén ,  Miguel Samplón

IPC: H01F27/28

CPC classification number: H01F27/2885 ,  H01F27/26 ,  H01F27/306 ,  H01F27/362

Abstract: The present disclosure provides for the shielding of clamps of a transformer, and including an electric shielding arrangement for a transformer and a transformer with the arrangement. An electric shielding arrangement for a transformer is provided, with a clamp which is attached at a yoke and stabilizes the yoke of the transformer. The arrangement includes an electric shielding device arranged at the clamp between the yoke and a winding of the transformer and having a trough-like form. The electric shielding device may have the form of a rounded cover and is configured to shield the clamp from an electric field of the winding.

Abstract translation: 本公开提供了对变压器的夹具的屏蔽，并且包括用于变压器的电屏蔽装置和具有该装置的变压器。 提供了一种用于变压器的电屏蔽装置，其具有附接在磁轭处并使变压器的磁轭稳定的夹具。 该装置包括一个电屏蔽装置，该电屏蔽装置设置在磁轭与变压器绕组之间的夹具处，并具有槽形形式。 电屏蔽装置可以具有圆形盖的形式，并且被配置为将夹具与绕组的电场屏蔽。

公开(公告)号：US20130321113A1

公开(公告)日：2013-12-05

申请号：US13961577

申请日：2013-08-07

Applicant: ABB Technology AG

Inventor： Carlos ROY ,  Rafael Murillo ,  Lorena Cebrian Lles

IPC: H01F27/00 ,  H01F41/06

CPC classification number: H01F27/008 ,  H01F27/288 ,  H01F27/322 ,  H01F27/362 ,  H01F41/06 ,  H01F41/063 ,  H01F2027/328 ,  Y10T29/49071

Abstract: A dry-type electrical transformer includes a coil assembly having at least one winding wound into a plurality of concentric turns, at least one cooling sector defined between adjacent concentric turns, spacers positioned inside the cooling sector and spaced from each other to allow a plurality of air ducts each defined between two adjacent spacers, and at least one electrical shield positioned in the cooling sector and arranged to electrically shield the air ducts. At least one electrical shield is positioned in the cooling sector and arranged to electrically shield the air ducts. The electrical shield include a first end edge connected to the turn at the inner side of the cooling sector, a second end edge which is free and electrically insulated from the surrounding parts, and a central portion extending between the first and second end edges and is positioned at the outer side of the spacers.

Abstract translation: 干式电变压器包括线圈组件，该线圈组件具有缠绕成多个同心匝的至少一个绕组，在相邻的同心匝之间限定的至少一个冷却扇区，位于冷却扇区内的间隔件并且彼此间隔开以允许多个 每个限定在两个相邻间隔件之间的空气管道和至少一个电气屏蔽件，其定位在冷却扇区中并被布置成电气屏蔽空气管道。 至少一个电气屏蔽件定位在冷却扇区中并且布置成电屏蔽空气管道。 电屏蔽包括在冷却扇区的内侧连接到转弯的第一端边缘，与周围部分自由且电绝缘的第二端边缘和在第一和第二端边缘之间延伸的中心部分， 位于间隔件的外侧。