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:
May. 26, 2020
Filed:
Nov. 22, 2017
Abb Schweiz Ag, Baden, CH;
ABB Schweiz AG, Baden, CH;
Abstract
An electrical DC switching system for extinguishing an electric arc, wherein the electrical DC switching system includes: a contact arrangement having a first contact and a second contact, a current injection circuit including a resonance circuit configured to be connected across the contact arrangement, and a first switch connected to the resonance circuit and to the first contact, wherein the first switch is configured to be switched between an open state and a closed state, wherein in the closed state the first switch is configured to enable an injection current to flow through the resonance circuit in a first flow direction and into the contact arrangement in a direction opposite to a flow direction of a contact arrangement arc current, and an arc chute assembly including a plurality of splitter plates configured to extinguish an electric arc across the first contact and the second contact, wherein each splitter plate of the plurality of splitter plates has a layered configuration including a magnetic layer and two non-magnetic layers.