Siemens Aktiengesellschaft

Innomotics Gmbh

Jürgen Einschenk

Norbert Steinemer

Karsten Freundt

Frank Schremmer

Frank Graskowski

Werner Schmidt

Bernd Specht

Jochen Ermisch

Ulf Schümann

Unni Suresh

Stephan Welzel

Peter Stracke

Ralf-Reiner Volkmar

Christoph RÖHLING

Jürgen Jäger

An electrical short-circuiting device includes a fixed contact piece and a movable contact piece. The fixed and movable contact pieces are distanced from one another in a basic position and electrically conductively connected to one another in a short-circuit position. A drive transfers the movable contact piece from the basic position into the short-circuit position, and a trigger device includes an electrically driven actuator for triggering the drive.

Short-circuiting device, converter and short-circuiting method

A drive for a switching device having a contact system with a fixed contact and a moving contact, includes a force initiation element for initiating a drive force, an actuator for actuating the moving contact to close or open the contact system and a transmission disposed between the force initiation element and the actuator. The transmission allows both transferring the contact system from the closed to the open state and transferring the contact system from the open to the closed state to be triggered by a drive force in the same direction, making the drive cost-effective and compact.

Drive for a switching device

The invention relates to a drive device for a switching tube with a fixed and movable contact part, said movable contact part being controlled by a plastic switch rod (SS) which remains substantially unstressed when the contact parts are connected or disconnected and the force of the contact spring (KF) when the contact parts are connected is approximately fully exerted on the movable contact part of the switching tube. The actuating lever and the pendulum lever are replaced by drive levers (AH, AH') having a triangular contour and which are fitted with a pivoting rotational bearing (SL . . . ) in each corner area, said drive levers (AH . . . ) being provided with a centrical pivoting bearing (SLm) for receiving the rotationally mounted contact spring (KF) and the centrical pivoting rotational bearing (SLm) between an upper pivoting rotational bearing (Slo) connected to the switch rod (SS) and a lower pivoting rotational bearing (SLu) connected to the drive (AT) of the movable contact part and the contact spring (KF) is mounted on one side in a fixed spherical cap guide (KG). The contact pressure force for the drive (AT) of the movable contact part can be regulated by altering the active path length of the contact spring (KF). The active path length of the contact spring can be continuously adjusted by a regulating screw (RS) which is accessible from the outside.

Drive device for a switching tube with a fixed and movable contact part

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Panketal, Germany

Jürgen Einschenk