THE ELECTROMAGNETIC ACTUATOR OF THE VACUUM SWITCH

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Useful model relates down electrical engineering, namely to the constructions of the drives of vacuum switches. An increase in the reliability of the fixation of drive before the locked state of magnetic circuit is the technical result of the proposed useful model. Technical result is reached as far as the fact that the outer ring contains as the minimum one unremagnetizable section besides the permanent magnet. The fulfillment of outer ring with the unremagnetizable section from the permanent magnet increases the reliability of the fixation of drive before the locked state, since permanent magnets possess larger value by magnetic induction in comparison with the magnetically hard materials and larger stability. The magnetic flux of permanent magnets is very stable on the time and practically it does not depend on temperature, impacts, vibrations. The execution of permanent magnet with the rare-earth elements increases value and stability of magnetic field. Useful model can be successfully used for the production of the electromagnetic actuators of vacuum switches.