FIELD: electrical engineering.
SUBSTANCE: invention relates to the field of electrical engineering, in particular, to the power transmission sections and redundancy devices and is intended for the electric network switching, protection, electric power accounting, control of electric power quality, control of quantity and time of voltage disconnection in distribution networks of three-phase current. Technical result is achieved due to multi-contact switching system, which has independent control of six power contact groups connected in a mixed circuit, comprises first output switching element of manual control, first remote control switching element, second remote control switching element, third remote control switching element, fourth remote control switching element, fifth remote control switching element, a sixth remote control switching element, second output switching element of manual control, third output switching element of manual control, control unit of first remote switching element, control unit of second remote control switching element, control unit of third remote control switching element, fourth remote switching control element control unit, fifth remote control switching element control unit, sixth remote switching control element control unit, multi-contact switching system control unit, unit for receiving and transmitting data, unit for uninterrupted power supply.
EFFECT: improved reliability and efficiency of power supply systems for consumers.
1 cl, 1 dwg
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