METHOD AND DEVICE FOR SEASONAL POWER SUPPLY BACKUP WITH SELECTION OF A BACKUP POWER SUPPLY SOURCE Russian patent published in 2022 - IPC H02J13/00 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, in particular to the automation of electrical networks. In the power supply redundancy method with the selection of a backup power supply source, the backup and additional backup power supply sources are connected, the first group of time intervals is set and counted during which the backup is performed from the backup source, the second group of time intervals is set and counted during which the backup is performed from the additional backup source, control the shutdown of the main source, when the main source is turned off at the moment of time when the countdown of one of the first group of time intervals is turned on, they give a signal to connect consumers to the backup source, when the main source is turned off at the moment of time when the countdown of one of the second group of intervals is turned on time, then give a signal to connect consumers to an additional backup source, when the main source turns on again, give a signal to switch consumers from a backup or additional backup and source on the main.

EFFECT: increasing the reliability of power supply to consumers with the seasonal nature of the operation of backup power sources.

2 cl, 1 dwg