FIELD: electrical engineering.
SUBSTANCE: invention relates to the field of electric engineering, in particular to devices for sectioning and redundancy of power transmission lines, and is intended for switching, protection of electric network, 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 four power contact groups connected by bridge circuit, comprising 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, manual control second output switching element, third output switching element of manual control, fourth 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, unit for remote control of power circuits of multi-contact switching system, local control unit of multi-contact switching system power circuits, current control unit, power metering unit with electric energy quality control function, switching elements position monitoring unit, data transmission unit and voltage control unit.
EFFECT: improved reliability and efficiency of power supply systems for consumers.
1 cl, 1 dwg
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