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. 01, 2014
Filed:
May. 11, 2011
Javier Mantilla, Baden, CH;
Nicola Gariboldi, Nussbaumen, CH;
Stephan Grob, Baden, CH;
Oliver Cossalter, Fislisbach, CH;
Mathias-dominic Buergler, Wettingen, CH;
Javier Mantilla, Baden, CH;
Nicola Gariboldi, Nussbaumen, CH;
Stephan Grob, Baden, CH;
Oliver Cossalter, Fislisbach, CH;
Mathias-Dominic Buergler, Wettingen, CH;
ABB Technology AG, Zurich, CH;
Abstract
A high-voltage switch includes a contact arrangement having two arcing contacts, one of which is supported displaceably against the action of a pretensioned spring. When the contact arrangement is closed, the free ends of the two arcing contacts are supported on one another. When the contact arrangement is opened, the two arcing contacts separate and during this process an arcing zone, accommodating compressed arc gas, is produced which is limited axially by free ends of the two arcing contacts and radially by an insulating nozzle toward the outside. To prevent the displaceably supported arcing contact from returning against the action of the pretensioned spring when a large short-circuit current is interrupted, the switch includes a piston/cylinder system functioning as a restoring device, which communicates with the arcing zone and which, with increasing pressure of the compressed arc gas produced in the arcing zone, generates a restoring force supporting the repelling force of the pretensioned spring.