FIELD: power supply.
SUBSTANCE: group of inventions relates to the field of electrical power supply networks. To reduce the cost of the network operator to recognize and localize triggered interrupt units (16a, 16b, 16c), device (17) is proposed, which has sensor interface (21a) for connecting sensor unit (21b) for specific for interrupt (16a, 16b, 16c) unit measuring value (M), processing unit (20) connected to sensor interface (21a), which is designed to recognize changes in the current passing through interrupt unit (16a, 16b, 16c) based on measuring value (M), and connected to processing unit (20) is communication interface (22a), through which, in the case of recognition of a change in current, the transmission of warning signal (S), which indicates the critical state of the interrupt unit, is provided to communication unit (22b).
EFFECT: to reduce the cost of the network operator to recognize and localize triggered interrupt blocks.
15 cl, 4 dwg
