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:
Aug. 08, 2017
Filed:
Aug. 28, 2012
Tor-eivind Moen, Nesøya, NO;
Wojciech Piasecki, Krakow, PL;
Knut Rongve, Fyllingsdalen, NO;
Jan Wiik, Oslo, NO;
Tor-Eivind Moen, Nesøya, NO;
Wojciech Piasecki, Krakow, PL;
Knut Rongve, Fyllingsdalen, NO;
Jan Wiik, Oslo, NO;
ABB SCHWEIZ AG, Baden, CH;
Abstract
A switching device is provided for disconnecting or connecting an electric machine, a converter or a plurality of electrical loads supplied with AC power from a power supply and controlled by a control unit. The switching device includes a current sink and at least one mechanical switch in the switching device are arranged in a circuit. The current sink is arranged, upon receipt of a signal, to close and sink the current, and the at least one mechanical switch is arranged to open and break the current on receipt of a signal to open supplied to the electric machine when the current load is at or close to zero. A method and a computer program for carrying out the method are described.