公开(公告)号：US20220037079A1

公开(公告)日：2022-02-03

申请号：US17297690

申请日：2019-10-22

Applicant: ABB Power Grids Switzerland AG

Inventor： Yong Wang ,  Jens Tepper ,  Wei Wu ,  Ava-Ye Xu

IPC: H01F27/28 ,  H01F27/20

Abstract: A transformer cooling system is described. The transformer cooling system includes a dry transformer and a housing for the dry transformer. The dry transformer includes a core including a leg. Additionally, the dry transformer includes a winding body arranged around the leg. Further, a cooling channel extending in a direction of a longitudinal axis of the winding body is provided. Additionally, the transformer cooling system includes a heat exchanger adapted to dissipate heat from the housing. Further, the transformer cooling system includes a flow generating device arranged in the housing for providing a cooling flow in the cooling channel. The flow generating device is connected to the heat exchanger.

公开(公告)号：US20210383956A1

公开(公告)日：2021-12-09

申请号：US17286021

申请日：2019-10-02

Applicant: ABB POWER GRIDS SWITZERLAND AG

Inventor： Bernardo Galletti ,  Andreas Blaszczyk ,  Wei Wu

IPC: H01F27/14 ,  H01F27/02

Abstract: Radiator for a transformer comprising a plurality of radiator panels with at least a first and a second radiator panel extending in a substantially vertical direction, wherein the first and the second radiator panel form an air duct providing a gap there-between having a width of smaller than 90 mm, and wherein a first radio panel bottom edge is located at a lower vertical height position than a second radiator panel bottom edge, wherein the first radiator panel is located at a side of the radiator panel such that the first radiator panel and a transformer side form a transformer air duct wherein the second radio panel bottom edge is located at a larger height than the first radio panel bottom edge and wherein the radiator panels have an aspect ratio greater than 8 of a depth of the radiator panel over a width of the air duct.