Method for producing a conductor bar of transposed stranded conductors
US7346974B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2005 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Feb 9, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49117
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for producing a conductor bar including transposed stranded conductors for a large, rotating electric machine. The method includes a first step of cabling a plurality of electrically insulated individual wires to form a plurality of identical stranded conductors having an essentially circular cross section. In a second step the stranded conductors are helically wound around a winding spindle in the manner of a Roebel transposition so as to form a conductor loop, wherein the winding has a profile adapted to a final cross sectional shape of the conductor bar. In a third step, the winding spindle removed from the conductor loop. In a fourth step, the conductor loop undergoes a press-forming procedure that gives it the final cross sectional shape, especially, for example, a rectangular shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.