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:
Jun. 02, 2020
Filed:
Aug. 11, 2017
Abb Schweiz Ag, Baden, CH;
Sauro Macerini, Bucine, IT;
ABB SCHWEIZ AG, Baden, CH;
Abstract
An arc fault detection arrangement for a DC electric bus, the DC electric bus having a plurality of electric lines adapted to electrically connect a source section and a load section of an electric apparatus, the arc fault detection arrangement including an arc fault detector adapted to receive and process detection signals indicative of AC currents flowing along the electric lines characterized in that it includes a current sensing device. The current sensing device includes: primary winding means including a plurality of first primary winding conductors adapted to be electrically connected in series with source portions and load portions of corresponding first line conductors of the electric lines; secondary winding means magnetically coupleable with the first primary winding means, the secondary winding means comprising at least a first secondary winding conductor electrically connected with the arc fault detector to provide the detection signals to the arc fault detector.