Patent · US Active

High voltage capacitive device

US10937597B2 · kind B2 · utility

1Cited by

3References

15Claims

0Family size

Assignee

ABB Schweiz AG · CH

Inventors

Cecilia Forssen · Västerås, SE
Francisco Penayo · Söderbärke, SE
Joachim Schiessling · Säter, SE
Nils Lavesson · Västerås, SE
Peter Sjöberg · Ludvika, SE
Roger Hedlund · Champlin, US
Ylva Granbom · Falun, SE
Peter Dyreklev · Linköping, SE
Staffan Nordlinder · Norrköping, SE

Key dates

Filing date	Jun 19, 2018
Grant date	Mar 2, 2021
Priority date	—
Expiry date	Jun 19, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH01G4/183
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A high voltage capacitive device having: a non-impregnatable film having a plurality of physically separated regions each defined by a conductive coating provided on the non-impregnatable film, wherein the non-impregnatable film is wound in a plurality of turns to form a plurality of layers, wherein the regions are arranged in overlapping layers in the radial direction, wherein the non-impregnatable film forms a dielectric between adjacent layers of the regions, and wherein the conductive coating of at least some of the regions is provided with a plurality of first radial openings extending through the conductive coating to the non-impregnatable film, which delimits a radial extension of each first radial opening.

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