Patent · US Active

Enhanced track resistant dome structure for dry-type cast coil transformer

US9847167B2 · kind B2 · utility

0Cited by

1References

11Claims

0Family size

Assignee

ABB Schweiz AG · CH

Inventors

Robert C. Ballard · Wytheville, US
Ryan Christian Tyler Alkire · Christiansburg, US
Brian J. Akers · Ivanhoe, US
Thomas A. Gburek · Lewisville, US
Pascal Schutt · Borchen, DE

Key dates

Filing date	Jul 18, 2013
Grant date	Dec 19, 2017
Priority date	—
Expiry date	Jul 18, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH01F41/127
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A dry type cast coil transformer (28) includes a hollow body (29), a dome structure (26) extending from the body, and undulation structure (30), defining at least a portion of an outer surface of the dome structure, constructed and arranged to increase an electrical track path in the dome structure.

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