FIELD: electrical engineering.
SUBSTANCE: step switch comprises accurate selector of transformer winding taps and if required preliminary selector designed for selection winding tap for switch without power consumption, as well as power switch of winding taps. At least one three-phased torque drive is provided in connection with transmission devices of various performances. Torque drive functions in different ways for certain structural assemblies.
EFFECT: design simplification due to reduction of part count, advanced compactness, high operation dynamics enabling stick-slip motion and improved performance.
16 cl, 20 dwg
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