公开(公告)号：US20140035709A1

公开(公告)日：2014-02-06

申请号：US14052285

申请日：2013-10-11

Applicant: ABB TECHNOLOGY AG

Inventor： Marcos BOCKHOLT ,  Frank CORNELIUS ,  Jens TEPPER ,  Burak ESENLIK ,  Bhavesch PATEL ,  Benjamin WEBER

IPC: H01F27/00

CPC classification number: H01F27/008 ,  H01F27/402

Abstract: A dry-type transformer heater includes a closed housing, and at least one transformer winding arranged in the housing. The at least one transformer winding includes at least one corresponding winding conductor and a corresponding insulation layer surrounding the transformer winding, respectively. In addition to the respective winding conductor, at least one coil heating wire is provided in at least one of the insulation layer and on the surface of the insulation layer to input thermal power into the respective insulation layer.

Abstract translation: 干式变压器加热器包括封闭的壳体和布置在壳体中的至少一个变压器绕组。 所述至少一个变压器绕组分别包括至少一个对应的绕组导体和围绕变压器绕组的对应的绝缘层。 除了相应的绕组导体之外，至少一个线圈加热线设置在绝缘层中的至少一个和绝缘层的表面上，以将热功输入相应的绝缘层。