FIELD: electrical engineering.
SUBSTANCE: invention relates to the field of electrical engineering, in particular to devices for sectioning and redundancy of power lines, and is intended for switching, protecting the electrical network and equipment of a multicontact switching system from emergency modes of operation and switching and atmospheric overvoltages, electricity metering, power quality control, quantity and time control disconnection of voltage in distribution electric networks of three-phase current. The effect is achieved by the presence in the multi-contact switching system with six power contact groups connected in a mixed circuit, three output switching elements of manual control, six switching elements of remote control, six control units for switching elements of remote control, a unit for receiving and transmitting data, a control unit for a multi-contact switching system, an uninterruptible power supply unit, three surge suppressors.
EFFECT: increasing reliability of the multicontact switching system, reducing the undersupply of electricity to consumers and increasing the reliability and efficiency of consumer power supply systems.
1 cl, 1 dwg
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