公开(公告)号：US20140166329A1

公开(公告)日：2014-06-19

申请号：US13716241

申请日：2012-12-17

Applicant: ABB TECHNOLOGY AG

Inventor： Robert C. Ballard ,  Edgar A. Wimmer, JR.

IPC: H05K5/02 ,  F16K15/00

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，耦合到底壁并从底壁延伸的多个侧壁，以及耦合到侧壁以与底壁间隔开的顶壁。 顶壁包括其中的开口。 底壁，侧壁和顶壁限定了用于容纳干式变压器的封闭空间。 压力释放结构与顶壁相关联并且具有构造和布置在关闭位置以覆盖开口的至少一个挡板。 如果在外壳中发生电弧闪光，产生外壳中的气体压力，则翼片被构造和布置成由于作用在其上的气体压力而从关闭位置移动到打开位置，允许气体压力从顶部逸出 的外壳通过开口。