Method for preventing corona surface damage in end windings of air-cooled motors and generators
US6181042A · kind A · utility
19Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1998 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | May 30, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An end winding (10) of a high voltage air-cooled ac generator or motor is made more resistant to surface deterioration by corona activity by using a paint whose binder contains at least 20% by weight silicone. An end winding, including its insulated conductors and separator and support structures, are coated with the paint whose composition includes a solvent or thinner, optional pigments, and the binder containing at least 20% by weight silicone. The balance (if any) of the binder can be, for example, an alkyd, acrylic, phenolic or epoxy resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.