公开(公告)号：US20190195697A1

公开(公告)日：2019-06-27

申请号：US14123125

申请日：2012-05-25

Applicant: KOREA BASIC SCIENCE INSTITUTE

Inventor： Jalal CHENGAOU ,  Kai HAEMEL ,  Sebastian HOLLUNDER ,  Martin KUBICZEK

IPC: G01K1/08 ,  G01K7/42 ,  G01K1/16 ,  G01K1/14 ,  H01F27/40

CPC classification number: G01K1/08 ,  G01K1/14 ,  G01K1/16 ,  G01K7/42 ,  G01K2007/422 ,  H01F27/402 ,  H01F2027/406

Abstract: The invention relates to a thermometer, especially for determining the winding temperature of an electric power transformer. The invention is characterised in that, in a thermometer for determining the winding temperature of an electric power transformer, an electric temperature sensor, a mechanical temperature sensor and a heating element are arranged inside a coupling part formed from a heat-conductive material, and an insulating sleeve consisting of a thermally stable material is provided between an outer wall of the coupling part and an inner wall of the housing, the housing, the insulating sleeve and the coupling part forming a coaxial structure without leaving any air gaps such that thus definable heat transfers are generated between the individual components, namely the coupling part, the insulating sleeve and the tubular housing.