Patent · US Active

High voltage shielding device and a system comprising the same

US9167731B2 · kind B2 · utility

0Cited by

2References

12Claims

0Family size

Assignee

ABB RESEARCH LTD. · CH

Inventors

Mats Berglund · Ludvika, SE
Uno Gafvert · Hagfors, SE
Ralf Hartings · Ludvika, SE
Tor Laneryd · Enköping, SE
Tommy Larsson · Ludvika, SE
Joachim Schiessling · Säter, SE
Peter Astrand · Bälinge, SE

Key dates

Filing date	Jan 8, 2013
Grant date	Oct 20, 2015
Priority date	—
Expiry date	Sep 2, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH01F27/363
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A high voltage shielding device including a main body having an enclosing outer solid insulating wall, an outer electrode arranged on the solid insulating wall providing a first level of insulation to the outer electrode, and a first inner electrode which is uninsulated or has a coating providing a second level of insulation, which second level of insulation is lower than the first level of insulation. The first inner electrode is oriented relative the outer electrode in such a way that the first inner electrode mainly shields a component of an electric field which is perpendicular to a component of an electric field mainly shielded by the outer electrode.

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