.DELTA.-Connected, two-layer, three-phase winding for an electrical machine
US4200817A · kind A · utility
57Cited by
9References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 5, 1978 |
| Grant date | Apr 29, 1980 |
| Priority date | — |
| Expiry date | Jan 5, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S174/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A winding for a .DELTA.-connected, two-layer, three phase electrical machine with at least two shunt connected sets of coils per phase wherein the winding is arranged such that two adjacent sets of coils are connected with the coils of one set being cross connected and the other set being uncrossed. The coil end overhangs of the crossed set are longer than the overhangs of the uncrossed set. The voltage difference between adjacent conductor rods of one layer thus amounts, at all phase changes, at most to one winding voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.