Patent · US Expired

Coupling capacitor having an integrated connecting cable

US6255935A · kind A · utility

42Cited by

5References

12Claims

0Family size

Assignee

ABB RESEARCH LTD. · CH

Inventors

Josef Lehmann · Waldshut-Tiengen, DE
Jakob Rhyner · Zürich, CH
Ate Postma · Küssaberg-Rheinheim, DE
Bernhard Doser · Waldshut-Tiengen, DE

Key dates

Filing date	Sep 13, 1999
Grant date	Jul 3, 2001
Priority date	—
Expiry date	Sep 13, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH04B2203/5483
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

The invention relates to a simplified and cost-effective apparatus for injecting signals into electrical power lines at the high-voltage or medium-voltage level. A coupling unit which is simple to assemble and is protected against direct contact is proposed, in which the connecting cable 9 is integrated in the housing 10 of the coupling capacitor 8. In the region where the conductor 20 passes through the grounded housing 10 of the coupling capacitor 8, the electrical field is reduced by means of the housing wall having a special shape 10a. A smooth field distribution is achieved by suitable rounding of the formed region 10a which is provided for the insertion of the connecting cable 9.

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