Patent · US Active

Dry-type transformer

US11532429B2 · kind B2 · utility

0Cited by

3References

9Claims

0Family size

Assignee

Siemens Energy Global GmbH & Co. KG · DE

Inventors

Bernd Hofmann · Erlangen, DE
Benedikt Hönisch · Erlangen, DE
Tim-Felix Mai · Wendlingen, DE
Christian Seidel · Stockdorf, DE
Steffen Weinert · Opfingen, DE

Key dates

Filing date	Feb 9, 2017
Grant date	Dec 20, 2022
Priority date	—
Expiry date	Apr 15, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH01F2027/329
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present disclosure relates to electrical windings for a dry transformer which allows construction of a compact dry transformer even in relatively high voltage classes. For this purpose, the electrical winding has multiple windings of a winding conductor wound to form a coil. The coil has been embedded into a solid insulation body. In some embodiments, a coating of an electrically conductive material, comprising a resin matrix with at least 0.05% by weight of nanoscale filler, has been applied to at least one surface of the insulation body.

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