Patent · US Expired

Bushing for high electrical voltage

US6452109B1 · kind B1 · utility

6Cited by

17References

7Claims

0Family size

Assignee

Hochspannungsgerate Porz GmbH · DE

Inventors

Norbert Koch · Ulm, DE
Gunter Trojan · Bochum, DE

Key dates

Filing date	Apr 17, 2001
Grant date	Sep 17, 2002
Priority date	—
Expiry date	Apr 17, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH01B17/28
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A bushing for a high electric voltage has a casing through which a central conductor is passed so that it is electrically insulated. Conducting liners spaced a distance apart are arranged concentrically around the central conductor, a combination which functions as a dielectric and is composed of one layer of film and one layer of a nonwoven being provided between the liners. The film and the nonwoven material are each made of plastic, so their water content is very low, and therefore the drying time in manufacturing of the bushing is shortened.

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