FIELD: electricity.
SUBSTANCE: invention relates to automation of electric circuits and is intended to control recovery of a normal circuit of electric power supply of a ring network with reference automation. The technical result consists in the enlargement of functional capabilities by receiving the information on recovery of the normal circuit of electric power supply of the ring network with reference automation. In order to solve the above task, reduction of operating current is controlled in a line of a standby power supply unit by a value determined by the load of a section of the line, which is adjacent to a network point of automatic transfer switch (ATS); with that, in the delay time of actuation of a protection of the ATS network point for deactivation there expected is an increase of operating current in the line of the main power supply unit by the same value as the reduction of operating current in the line of the standby power supply unit, and if it occurs, then, a conclusion is made on the activation of a sectionalising switch with further deactivation of the switch of the ATS network point and recovery of the normal circuit of electric power supply of the ring network.
EFFECT: proposed method allows receiving the information on recovery of the normal circuit of electric power supply of the ring network with reference automation.
2 dwg
