| 主权项 |
1. A direct current switch including a device configured for arc extinction independent of current direction, the direct current switch comprising:
at least two interconnected switch units, wherein each switch unit has a current path, the current path including an interruption surface, and the current path including at least two switch contact elements configured to form the interruption surface; an arc extinction device associated with one or more current paths of the switch units; and a magnetic field generation device configured to generate one or more magnetic fields each generated magnetic field being assigned to an interruption surface of a different switch unit of the switch units, and the magnetic field generation being oriented such that its field lines run substantially transversely to the respective interruption surface, wherein, at a predetermined direction of current flow, deflection forces of at least two generated magnetic fields act through current paths counter to arcs extending in a longitudinal direction of the respective interruption surface such that at least one arc is deflected towards the arc extinction device and a further arc is deflected away from the arc extinction device, wherein the switch units are rotatory double interrupters, and wherein the arc deflected away from the arc extinction device is directed onto a selector shaft or a selector shaft segment of a double interrupter. |
