Polyamide electrical insulation for use in liquid filled transformers
US8193896B2 · kind B2 · utility
1Cited by
17References
18Claims
0Family size
Inventor
Key dates
| Filing date | Aug 15, 2009 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Oct 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B3/305
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An aliphatic polyamide film or fibrous material is employed for electrical insulation in individual conductors, groups of conductors, magnet wire, magnet wire coils, and layers in liquid filled electrical transformers. The material is stabilized with additives that produce improved moisture resistance, moisture stability, thermal stability, thermal conductivity, reduced insulation thickness, reduced shrinkage, and improved insulation elasticity for the insulation material thereby providing a longer useful life for the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.