Patent · US Expired

Winding for a transformer or a coil and method for producing the winding

US6778060B2 · kind B2 · utility

0Cited by

6References

10Claims

0Family size

Assignee

ABB T&D Technologies Ltd. · CH

Inventors

Roland Hoffmann · Augsburg, DE
Meinolf Otto · Brilon, DE
Benjamin Weber · Winterberg, DE

Key dates

Filing date	Nov 25, 2002
Grant date	Aug 17, 2004
Priority date	—
Expiry date	Nov 25, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/4902
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A winding for a transformer or coil includes a ribbon electrical conductor and at least one ribbon insulation material layer fitted thereto or applied as ribbon material thereto. The conductor and the insulating material layer are wound to form turns around a winding core along a winding axis. The individual turns of the winding have a predetermined winding angle with respect to the winding axis. A number of turns are located axially alongside one another form one layer, and at least two radially adjacent layers of turns are provided. A first layer of turns is radially adjacent to a second layer produced by changing the winding direction by folding the electrical conductor and the insulating material layer. The total angle, which is produced by the folding, between the longitudinal direction of the ribbon insulating material in the first layer and the corresponding direction of the second layer corresponds to twice the winding angle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.