FIELD: electrical engineering; augmented operating mechanisms for switching devices. SUBSTANCE: augmented operating mechanism designed for switching devices incorporating vacuum arc-control chambers where high contact pressure is required has electromagnet coil, controlled electronic switch, timer with operating- mechanism end-position and/or time setting, periodic square pulse generator, two-position switch, and electromagnet coil shunting diode. EFFECT: reduced power requirement. 2 cl, 2 dwg
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