Schaltbau Gmbh

Andrej Ignatov

Robert Kralik

Korbinian Kreuzpointner

Johannes Schmid

Martin Geschke

Korbinian Kreuzpointer

Switching device with closable contacts and an extinguishing chamber which is associated with the contacts and has a first extinguishing area and a second extinguishing area arranged directly adjacent to the first extinguishing area, the first extinguishing area and the second extinguishing area being spatially separated from each other by a partition wall, and the switching device being configured in such a way that a switching arc which is generated when opening the contacts is always blown away from the point where it is generated in one of the two extinguishing areas by means of an arc blowing means of the switching device and is caused to be extinguished, whereas the respective other of the two extinguishing areas is not used for extinguishing, characterized in that the partition wall between the first extinguishing area and the second extinguishing area has at least one overflow opening which connects the first extinguishing area to the second extinguishing area in such a way that plasma which is generated by the switching arc can flow from the extinguishing area in which the switching arc is caused to be extinguished into the respective other, unused extinguishing area.

Switching device with at least two intercommunicating extinguishing areas

The present invention relates to an arc chamber to extinguish electric arcs for a contactor with an extinguishing system, a blowing device which blows electric arcs into the extinguishing system, and a plurality of lamellar electric arc extinguishing elements between which flow channels are formed, wherein the flow channels each have a scattering section and wherein the scattering sections of adjacent flow channels are formed with different inclinations so that the blown air is deflected into different directions by the flow channels. The invention further relates to a contactor with such an arc chamber.

Arc chamber for a contactor and contactor to extinguish electric arcs

Disclosed is a DC contactor comprising a double break with two contact points, each having a fixed and a movable contact, the movable contacts arranged on a contact bridge. The contactor includes an arc extinguishing device and a blowing device configured to blow a switch arc, which forms at the first contact point when the contact points are being opened, into the arc extinguishing device, when switching takes place in the preferential current direction. A commutating plate is arranged adjacent the movable contact of the first contact point, the contact bridge and the commutating plate being electrically insulated from one another and the commutating plate being potentially connected to the fixed contact of the second contact point, so that, when switching takes place in the preferential current direction, the switch arc forming at the first contact point jumps from the contact bridge to the commutating plate by the blowing device.

Direct-current contactor with additional switching capability for AC loads and a polarity against the preferential current direction

Disclosed is an electric contactor, in particular to be used in roadways, with the stator and an armature, the armature being connected with a contact region and being movable, during a switching-on operation and/or a switching-off operation of the contactor, from a first to a second position, the contact region being connected in at least one of these positions with a counter-contact region for closing an electric circuit, wherein a pushing device is connected with the armature which is rotational relative to the armature, wherein the pushing device at least temporarily pushes the armature supportively in the movement from the first to the second position of the switching-on and/or switching-off operation.

Electric contactor with flywheel drive and method of switching an electric contactor on and/or off

Disclosed is a unidirectionally switching direct-current contactor, having a double break having two contact points, which each have a fixed contact and a movable contact, wherein the movable contacts are arranged on a contact bridge and wherein a switch arc is formed at each of the contact points when the contact points open, and including an arc quenching device and having at least one blowing device for blowing at least one of the switch arcs from the corresponding contact point. The contactor includes a jumper plate arranged adjacently to the movable contact of the first contact point, wherein the contact bridge and the jumper plate are electrically insulated from each other and the jumper plate is connected potentially to the fixed contact of the second contact point.

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Munich, Germany

Andrej Ignatov