公开(公告)号：EP3373314A1

公开(公告)日：2018-09-12

申请号：EP17382123.2

申请日：2017-03-10

Applicant: ABB Schweiz AG

Inventor： Nogués Barrieras, Antonio ,  Murillo, Rafael ,  Roy Martín, Carlos ,  Cebrian, Lorena ,  Sanchez Lago, Luis

IPC: H01F27/10 ,  H01F27/28 ,  H01F27/32

CPC classification number: H01F27/322 ,  H01F27/10 ,  H01F27/2876 ,  H01F27/327

Abstract: Cooling arrangements for non-liquid immerged transformers are disclosed. In an aspect, a non-liquid immersed transformer comprises a magnetic core having a winding axis and at least two coil windings wound around the magnetic core along the winding axis. Cooling tubes made of dielectric material are arranged inside of at least one of the coil windings to cool down the coil winding using dielectric fluid flowing through the dielectric cooling tubes.