公开(公告)号：US09424974B2

公开(公告)日：2016-08-23

申请号：US13961577

申请日：2013-08-07

Applicant: ABB Technology AG

Inventor： Carlos Roy ,  Rafael Murillo ,  Lorena Cebrian Lles

IPC: H01F27/08 ,  H01F27/32 ,  H01F27/36 ,  H01F27/00 ,  H01F27/28 ,  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。

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。