Patent · US Active

Dry-type transformer with a polymer shield case and a method of manufacturing the same

US8188823B2 · kind B2 · utility

5Cited by

21References

17Claims

0Family size

Assignee

ABB TECHNOLOGY AG · CH

Inventors

Hoan D. Le · Knightdale, US
Steve Shaw · Greenville, US
Stephen Clifford · Bremgarten, CH

Key dates

Filing date	Sep 19, 2008
Grant date	May 29, 2012
Priority date	—
Expiry date	Dec 5, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49073
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention is directed to a transformer and a method of manufacturing the same, wherein at least a portion of a core is disposed inside a shield case formed from a polymeric resin composition containing conductive particles. An encasement comprising a dielectric resin encapsulates the shield case. An electrical conductor is electrically connected to the shield case and is accessible from the exterior of the encasement.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.