Pole change dynamo-electric machines
US4363985A · kind A · utility
7Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1981 |
| Grant date | Dec 14, 1982 |
| Priority date | — |
| Expiry date | Feb 11, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K17/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pole change dynamo-electric machine with three-phase distributed winding is adapted for reconnection to form either one of two different pole numbers and for operation on either one of two different voltages. The adjacent coils of the winding are divided into N coil groups, N being equal to three times the greater one of the pole numbers. Every twelve adjacent coil groups form a set of coil groups. The beginning and end terminals of the specific coil groups within each set are connected and the rest of the terminals are reconnectable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.