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 the multicontact switching system from emergency modes of operation and switching and lightning surges, electricity metering, power quality control, quantity and time control disconnection of voltage in distribution electric networks of three-phase current. A multi-contact switching system with four power contact groups connected to a common point, contains four output switching elements of manual control, four switching elements of remote control, four control units of 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, four surge suppressors.
EFFECT: increasing reliability and functionality by ensuring uninterruptible power supply of its nodes by including an uninterruptible power supply unit in its circuit, as well as simplifying the device circuit due to the implementation of most functions by one control unit of a multi-contact switching system.
1 cl, 1 dwg
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