FIELD: electricity.
SUBSTANCE: switch comprises selector to select winding tap to be reswitched and load switch with at least one tap of current circuit and at least two auxiliary current taps; in each of them in load switch operating both with vacuum circuit breakers and switching cells, besides selector contacts, there are auxiliary switches connected in series with them and the respective winding tap, and in stationary mode the above auxiliary switches perform complete galvanic interruption of vacuum circuit breakers.
EFFECT: providing required dielectric strength to the load switch without increase in dimensions of vacuum circuit breakers.
5 cl, 3 dwg
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