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Switch drive for contact system of electrical switch, has piezo-motor comprising resonator connected with piezoelectric component and cooperating with transmission body such that body is movable based on movement of resonator
Switch drive for contact system of electrical switch, has piezo-motor comprising resonator connected with piezoelectric component and cooperating with transmission body such that body is movable based on movement of resonator
The drive has a piezo-motor (20) comprising a resonator (22) connected with a piezoelectric component (21), where the drive is in effective connection with a contact partner of a contact system (4) such that the contact partner is movable into switching positions in a motor-driven manner. The resonator cooperates with a transmission body (3) for transmitting motor torque to the system such that the body is movable based on movement of the resonator. The transmission body has a wheel (30) in friction-contact with the resonator. An independent claim is also included for an electrical switch comprising a switch drive.
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