Patent · US Active

Transformer insulation

US10685773B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

ABB Schweiz AG · CH

Inventors

Adam Michalik · Bibice, PL
Patricia Ricketts · South Boston, US
Massimo Carmignoto · Turri, IT
Jayram Yadava · Ballia, IN
Roberto Zannol · Abano Terme, IT
Miljenko Hrkac · Monselice, IT
Alessandro Mattozzi · Sundbyberg, SE
Claire Pitois · Sundbyberg, SE
Emmanouil Logakis · Baden, CH
Harald Martini · Herzogenaurach, DE
Ilario Scian · Cary, US
Orlando Girlanda · Västerås, SE
Rudi Velthuis · Lauchringen, DE
Spiros Tzavalas · Baden, CH

Key dates

Filing date	Dec 5, 2013
Grant date	Jun 16, 2020
Priority date	—
Expiry date	Dec 5, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49021
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present invention relates to an electrical transformer comprising an electrical insulator and a winding of an electrical conductor around a core, said insulator being formed of an essentially non-porous composite material comprising a resin matrix and up to 85% by weight of insulating fibres surrounded by the resin matrix, the composite material having a maximum moisture content of less than 0.5% by weight at 23° C. and 50% relative humidity.

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