The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2001
Filed:
Sep. 13, 1999
Josef Lehmann, Waldshut, DE;
Jakob Rhyner, Zürich, CH;
Ate Postma, Küssaberg-Rheinheim, DE;
Bernhard Doser, Waldshut, DE;
ABB Research Ltd., Zurich, CH;
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,is integrated in the housing,of the coupling capacitor,In the region where the conductor,passes through the grounded housing,of the coupling capacitor,the electrical field is reduced by means of the housing wall having a special shape,A smooth field distribution is achieved by suitable rounding of the formed region,which is provided for the insertion of the connecting cable