Repair method for bar or coil of rotating electrical machine
US11277058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2019 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Jan 30, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/105
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A bar or coil includes a conductor arranged in a rotating electrical machine and an insulating layer having a predetermined insulation thickness disposed on a surface of the conductor. The repair method includes: extracting a part of the bar or coil as a repair target; removing the insulating layer in a part of the bar or coil as the repair target; disposing a first insulating layer in the part where the insulating layer is removed, the first insulating layer having an insulation thickness thinner than the predetermined insulation thickness; and disposing a second insulating layer on a surface of the first insulating layer to form an insulating layer after a repair where the first insulating layer and the second insulating layer are added, the insulating layer after the repair having a thickness of the predetermined insulation thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.