The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2012
Filed:
May. 26, 2011
Benjamin Weber, Winterberg, DE;
Frank Cornelius, Olsberg, DE;
Jens Tepper, Brilon, DE;
Oliver Becker, Schriesheim, DE;
Paul Szasz, Plankstadt, DE;
Benjamin Weber, Winterberg, DE;
Frank Cornelius, Olsberg, DE;
Jens Tepper, Brilon, DE;
Oliver Becker, Schriesheim, DE;
Paul Szasz, Plankstadt, DE;
ABB Technology AG, Zurich, CH;
Abstract
A method is provided for producing windings for a dry-type transformer with in each case one winding for the low voltage (LV winding) and one for the high voltage (HV winding). The LV and HV windings are each electrically insulated from one another and have layers which are electrically insulated from one another by virtue of, initially, the winding for the low voltage being produced from electrically conductive wire or tape material and an insulating layer including resin-impregnated fibre material. Prior to the application of the HV winding, the maximum insulating thickness for the layer insulation and the number of fiber rovings corresponding to this insulating thickness can be determined, and each winding layer and the associated insulating layer can be produced simultaneously with a physical offset with respect to one another. To produce the winding, fiber polymer layers can be applied, as layers of insulation, simultaneously with the winding conductor between the individual winding layers of the winding, and the finished winding is subjected to a curing operation.