Solid insulation transformer
US5656984A · kind A · utility
14Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1995 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Apr 6, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F27/022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The solid insulation transformer has a rectangular core covered with a compressible closed-cell foam to eliminate stress during curing of the cast dielectric material surrounding the core and during operation. Heat pipes are placed between the inner coil and the core to extract heat before the temperature builds up. For safety and to eliminate the need for a separate enclosure, an outer multi-layer casing having an incorporated grounded conductive layer is provided to cover the sides of the cast body. The outer casing prevents explosion if dielectric break down and arcing occur, and reduces the danger of electric shock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.