FIELD: electricity.
SUBSTANCE: in method short circuit is registered on connection, command is sent to connect breaker of resistor plant, command is sent to disconnect breakers of damaged connection, and after short circuit command is sent to disconnect breaker of resistor plant. Then command is sent to disconnect breakers of damaged connection with time delay in the range between minimum own and maximum full times of disconnection of any of breakers installed in circuit of damaged connection, current value is measured in each phase of resistor plant, compared to two specified values, and in case current value in one or more phases is below the first specified or higher than the second specified values, command is sent to disconnect breakers installed in circuit at least one autotransformer connected to assembled buses, and with time delay sufficient for their disconnection, command is sent to disconnect breakers of adjacent connections.
EFFECT: disconnection of short circuit with application of resistor plant and circuit division with preservation of maximum number of connections in operation.
3 cl, 1 dwg
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