Switch arrangement and method for operating a switch arrangement
AssigneeSiemens Aktiengesellschaft
InventorsThomas Hintze, Martin Bindrich, Detlef Schwope, Malte Georg Hirte, Mario Schäfer, Stefan Lecheler
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Abstract
A switch arrangement has a vacuum switch device with a movable contact and a fixed contact. A magnet drive with at least one coil is configured, in the connected state, to exert an attractive force on an armature and to move it. A transmission mechanism is configured to convert a movement of the armature into a movement of the movable contact towards the fixed contact. A polarity reversal device is configured to reverse the polarity of a current flow through the at least one coil. There is also described a corresponding method.
Claims11
A switching arrangement, comprising:
- a vacuum switch having a movable contact and a fixed contact;
- a solenoid actuator having at least one coil and a magnet armature, said at least one coil being configured, in an on-state thereof, to exert an attractive force on said magnet armature and to move said magnet armature;
- a transmission mechanism configured to convert a movement of said magnet armature into a movement of said movable contact toward said fixed contact;
- and
- a polarity-reversal device configured to reverse a polarity of a current flow through said at least one coil, said polarity-reversal device comprising controllable switches for said at least one coil;
- and
- a first actuation device configured to actuate said controllable switches to reverse the polarity of the current flow during each switch-on of said at least one coil, said first actuation device comprising a bistable relay.
A method for operating a switching arrangement, the method comprising:
- providing a vacuum switching device having a movable contact and a fixed contact;
- providing a solenoid actuator having at least one coil which is configured, in an on-state, to exert an attractive force on, and move, a magnet armature;
- transmitting a movement of the magnet armature into a movement of the movable contact toward the fixed contact by way of a transmission mechanism;
- and
- reversing a polarity of a current flow through the at least one coil by a polarity-reversal device having controllable switches for the at least one coil;
- and
- providing an actuation device with a bistable relay, and actuating the controllable switches by the actuation device configured to actuate the controllable switches to reverse the polarity of the current flow during each switch-on of the at least one coil.
Dependencies are inferred from the claim text.