Patent · US Active

High voltage electromagnetic induction device

US9672969B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

ABB Schweiz AG · CH

Inventors

Anders Bo Eriksson · Ludvika, SE
Erik Wedin · Karlstad, SE
Jan Lindgren · Ludvika, SE
Mats Berglund · Ludvika, SE
Mats Ramkvist · Ludvika, SE
Stina Bertilsson · Smedjebacken, SE
Tina Brunstrom · Ludvika, SE

Key dates

Filing date	May 6, 2015
Grant date	Jun 6, 2017
Priority date	—
Expiry date	May 6, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH01F27/022
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A high voltage electromagnetic induction device including: a lead-through device-receiving structure having an opening for receiving a lead-through device, a lead-through device extending through the opening, wherein an internal portion is tapering in a direction along the central axis of the lead-through device away from the opening, and an electrical insulation barrier which is arranged in the lead-through device-receiving structure, arranged around and distanced from the internal portion, and which electrical insulation barrier is tapering in the direction, whereby a duct is formed between the internal surface of the electrical insulation barrier and the external surface of the internal portion of the lead-through device, wherein the electrical insulation barrier is tapering relative to the lead-through device such that the distance between the internal surface of the electrical insulation barrier and the external surface of the lead-through device increases in the direction.

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