公开(公告)号：US20140327506A1

公开(公告)日：2014-11-06

申请号：US14299265

申请日：2014-06-09

Applicant: ABB TECHNOLOGY AG

Inventor： Andreas GUSTAFSSON ,  Erik Wedin ,  Johan Engström ,  Erik Forsberg ,  Lars E. Schmidt ,  Hartmut Brendel

IPC: H01F27/12

CPC classification number: H01F27/12 ,  H01F27/025 ,  H01F27/322

Abstract: An oil transformer includes a transformer vessel, a transformer core mounted in the vessel, at least one upright hollow cylindrical transformer coil including at least one axial cooling channel arranged around a limb of the transformer core, and an oil chamber arranged at an axial front side of the transformer coil. At least one first opening leading from the inner chamber to the belonging front side of the transformer coil is provided, and at least one second opening is provided within the surrounding boundaries of the oil chamber. The oil chamber is an under-pressure chamber, wherein the at least one first opening is an inlet port and the at least one second opening is an outlet port.

Abstract translation: 油变压器包括变压器容器，安装在容器中的变压器铁心，至少一个直立的中空圆柱形变压器线圈，其包括围绕变压器铁芯的支柱布置的至少一个轴向冷却通道，以及布置在轴向前侧的油室 的变压器线圈。 提供了从内腔引导到变压器线圈的所属​​前侧的至少一个第一开口，并且至少一个第二开口设置在油室的周围边界内。 油室是低压室，其中至少一个第一开口是入口端口，并且至少一个第二开口是出口端口。