FIELD: electricity.
SUBSTANCE: circuit comprises at least two sources of supply, circuits of supply inputs arranged via T-junctions from breakers with automatic load transfer (ALT), a switchgear 10(6) kV, comprising at least two sections of busbars (sections). These sections are supplied with the help of T-junctions from input breakers of autonomous mutually redundant sources of supply, operating separately, since some input breakers are normally off; at the same time ALT is carried out between normally on and normally off input breakers of each section.
EFFECT: increased reliability of supply and efficiency of protection and reduced costs for construction of power plants.
6 dwg
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