PROTECTION TECHNOLOGIES AGAINST ZONAL DAMAGES OF DIRECT CURRENT DISTRIBUTION SYSTEMS Russian patent published in 2020 - IPC H02H3/08 

FIELD: electrical engineering.

SUBSTANCE: bus protection unit includes at least one sensor for obtaining sensor data, which are an indicator of one or more characteristics of a direct-current bus, controlled by a bus protection unit. Bus protection unit monitors the sensor data, determines whether the damage occurred based on said sensor data, and determines whether the fault occurred within the area of the bus, which is limited by the said DC bus, in response to the determination of the fact that the fault occurred. In addition, the bus detection unit opens the insulating devices within the bus area in response to the determination that the damage occurred within the said bus area, or to a message from another bus protection unit indicating that the damage occurred within the bus area. Bus protection unit transmits the bus failure indication signal to the other bus protection unit in response to the determination of the damage occurred.

EFFECT: improving reliability and speed of detection of damages of DC distribution systems.

20 cl, 8 dwg