Non-encapsulated-winding stereo wound-core dry-type amorphous alloy transformer
US8659382B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2011 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Oct 31, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2027/328
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A non-encapsulated-winding stereo wound-core dry-type amorphous alloy transformer. The core of the transformer has a stereo structure. Three lower yokes are placed on a base of a lower clamp, and an upper clamp and the lower clamp are connected with each other by several press screws. Low-voltage windings include a foil-wound or wire-wound cylindrical structure, while its high-voltage windings are wound with oxygen-free copper wires wrapped in an insulate paper and processed through vacuum pressure impregnation. Upper and lower padding blocks support and compress the high-voltage and low-voltage windings, so that the product is formed in a rigid stereo frame structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.