FIELD: electronics.
SUBSTANCE: invention relates to an on-load tap changer for switching among different winding taps of a step transformer without interruption. Switch comprises selector contact unit, electrically connected with individual winding taps. For uninterrupted switching for each phase are provided two vacuum switch tubes, selector contact unit and switching means for uninterrupted of load switching are triggered through a common motor drive without intermediate connection of energy accumulator.
EFFECT: technical result is higher operational reliability.
19 cl, 11 dwg
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