公开(公告)号：EP2487697A1

公开(公告)日：2012-08-15

申请号：EP11153738.7

申请日：2011-02-08

Applicant: ABB Technology AG

Inventor： Roy, Carlos ,  Murillo, Rafael ,  Cebrian Lles, Lorena

IPC: H01F27/28 ,  H01F27/32 ,  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 comprising:
- a coil assembly including at least one winding, said at least one winding comprising an electrical conductor (2) wound around a longitudinal axis into a plurality of concentric turns (3);
- at least one cooling sector (4) defined between adjacent turns of said plurality of concentric turns;
- a plurality of spacers (40) which are positioned inside said at least one cooling sector and are spaced from each other so as to allow having a plurality of air ducts (41) each defined between two adjacent spacers of said plurality of spacers; and
- at least one electrical shield (50) which is positioned in said at least one cooling sector and is arranged so as to electrically shield said plurality of air ducts.

Abstract translation: 一种干式电变压器，包括： - 线圈组件，其包括至少一个绕组，所述至少一个绕组包括围绕纵向轴线缠绕成多个同心匝（3）的电导体（2）; - 在所述多个同心匝的相邻匝之间限定的至少一个冷却扇区（4） - 多个间隔件（40），其定位在所述至少一个冷却扇区内部并且彼此间隔开，以便允许具有多个空气管道（41），每个空气管道限定在所述多个间隔件的两个相邻间隔件之间; 以及 - 至少一个电屏蔽（50），其被定位在所述至少一个冷却扇区中并且被布置成电屏蔽所述多个风道。

公开(公告)号：EP2439755A1

公开(公告)日：2012-04-11

申请号：EP10187072.3

申请日：2010-10-08

Applicant: ABB Technology AG

Inventor： Murillo, Rafael ,  Roy, Carlos

IPC: H01F27/32

CPC classification number: H01F27/324

Abstract: Dry-type electrical transformer comprising a magnetic core, an inner winding which is arranged around a portion of the magnetic core and has a first rated voltage, at least one outer winding which is arranged around the inner winding and has a second rated voltage which is different from the first rated voltage, wherein the outer winding is spaced apart from the inner winding so as a desired total air-gap is formed there between. A plurality of electrically insulating barriers are positioned between the inner and outer windings and are spaced apart from each other and from the windings so as the total air-gap is divided into a plurality of sub-air-gaps.

Abstract translation: 干式电变压器，包括磁芯，围绕所述磁芯的一部分布置并具有第一额定电压的内绕组，布置在所述内绕组周围的至少一个外绕组，并且具有第二额定电压， 不同于第一额定电压，其中外部绕组与内部绕组间隔开，从而在其间形成期望的总气隙。 多个电绝缘屏障位于内绕组和外绕组之间并且彼此间隔开并且与绕组间隔开，使得总气隙被分成多个次气隙。

公开(公告)号：EP2405451A1

公开(公告)日：2012-01-11

申请号：EP10007133.1

申请日：2010-07-10

Applicant: ABB Technology AG

Inventor： Murillo, Rafael ,  Roy, Carlos ,  Bockholt, Marcos ,  Cornelius, Frank ,  Esenlik, Burak ,  Patel, Bhavesh ,  Tepper, Jens ,  Weber, Benjamin

IPC: H01F27/32

CPC classification number: H01F5/06 ,  H01F27/324 ,  H01F30/12

Abstract: Es wird ein ein- oder mehrphasiger Trocken-Transformator mit mindestens zwei Spulen (1, 2, 3) vorgeschlagen, wobei eine Zwischen-Phasen-Barriere (4, 6, 7, 8, 10, 11) aus einem elektrisch isolierenden Material im Zwischenraum zwischen den einzelnen Spulen angeordnet ist.

Abstract translation: 变压器具有由电绝缘材料制成并且布置在线圈（1-3）之间的中间空间中的中间相屏障（4）。 屏障形成为线形，平面和矩形板形的板状屏障。 漏电路径突起布置在屏障的外边缘处，其形成为具有突起的单件模制部件。 隔板通过由电绝缘材料制成的间隔件彼此连接。 在一侧封闭凹槽以锁定屏障的拐角区域。

公开(公告)号：EP2400512A1

公开(公告)日：2011-12-28

申请号：EP10167486.9

申请日：2010-06-28

Applicant: ABB Technology AG

Inventor： Murillo, Rafael ,  Roy, Carlos

IPC: H01F27/36

CPC classification number: H01F27/362 ,  H01F27/26

Abstract: The invention relates to the electric shielding of yokes of a transformer, and in particular to a yoke and electric shielding arrangement for a transformer and a transformer with the arrangement.
An electric shielding arrangement for a transformer is provided with a yoke (109, 301) for connecting limbs (113) of the transformer (101) and an electric shielding device (112, 301). The electric shielding device (112, 302) is arranged at the yoke (109, 301) between the yoke (109, 301) and a winding (103) of the transformer (101). The first electric shielding device (112, 302) may be a rounded cover (112, 302) and is adapted for shielding the yoke (109, 301) from an electric field of the winding (103) thus smoothing an electric field.

Abstract translation: 本发明涉及变压器磁轭的电屏蔽，特别涉及用于变压器的磁轭和电屏蔽装置以及具有该装置的变压器。 用于变压器的电屏蔽装置设置有用于连接变压器（101）的分支（113）和电屏蔽装置（112,301）的轭（109,301）。 电屏蔽装置（112,302）布置在磁轭（109,301）与变压器（101）的绕组（103）之间的轭架（109,301）处。 第一电屏蔽装置（112,302）可以是圆形盖（112,302）并适于将轭（109,301）与绕组（103）的电场屏蔽，从而使电场平滑。