Short-circuiting rings for dynamoelectric machine
US3987325A · kind A · utility
9Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1974 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Sep 30, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dynamoelectric machine, having a laminated stator core and having low impedance short-circuiting rings positioned between end flanges to minimize voltage differences between key bars. Circumferentially spaced key bars are used to effect assembly of the laminations and the end flanges. Circumferentially aligned recesses are formed in the key bars spaced inwardly from the end flanges, and each short-circuiting ring is positioned within aligned recesses. The short-circuiting rings comprise a plurality of arcuate ring segments and are formed of a material of high conductivity. Bolts secure the segments to the key bars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.