FIELD: electrical engineering.
SUBSTANCE: invention relates to the field of electric engineering, in particular to devices of sectioning and redundancy of power transmission lines, and is intended for switching, electric network protection, electric power metering, electric energy quality control, number and time monitoring of voltage disconnection in three-phase current distribution networks. Technical result is achieved due to multi-contact switching system with three power contact groups and four leads, containing input manual switching element, first remote control switching element, second remote control switching element, third remote control switching element, first output switching element of manual control, 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, multi-contact switching system control unit, unit for receiving and transmitting data, unit for uninterrupted power supply.
EFFECT: technical result of claimed invention is increase in reliability and efficiency of consumer power supply systems.
1 cl, 1 dwg
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