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:
Apr. 21, 2015
Filed:
Oct. 25, 2011
Baoliang Sheng, Ludvika, SE;
Andreas Bergvall, Gothenberg, SE;
Björn Jacobson, Grängesberg, SE;
Peter Klee, Ludvika, SE;
Baoliang Sheng, Ludvika, SE;
Andreas Bergvall, Gothenberg, SE;
Björn Jacobson, Grängesberg, SE;
Peter Klee, Ludvika, SE;
ABB Technology AG, Zürich, CH;
Abstract
A direct current breaker for a high voltage direct current application includes: two high voltage electron tubes arranged in an anti-parallel connection, and a control circuit for receiving, from a control system, infrared pulses including control information, the control circuit further including a device configured to convert the infrared pulses into electrical control signals, for controlling a switching status of the direct current breaker. An electrical power system includes such direct current breaker.