COUPLING CAPACITOR LEAKAGE CURRENT CONTROL DEVICE Russian patent published in 2024 - IPC G01R27/00 

FIELD: electrical equipment.

SUBSTANCE: invention can be used in power engineering for automatic control and monitoring of the state of coupling capacitors at power facilities, to determine the beginning of the process of destruction of the coupling capacitor and its timely replacement. Leakage current control device of coupling capacitor, including coupling capacitor 8, connected to power transmission line, connection filter 7 and leakage current sensor 3 of coupling capacitor 8, wherein the number of sensors 3 corresponds to the number of coupling capacitors 8 and connection filters 7, leakage current sensor 3 of coupling capacitor 8 is fixed on pin 1 of connection filter 7, and its output is connected to input of controller (PLC) 10, wherein, according to the invention, the leakage current sensor 3 of coupling capacitor 8 is located outside the housing of connection filter 7 and is equipped with protective housing 4, wherein the output of controller 10 is connected to the computer.

EFFECT: simplifying the design of the leakage current monitoring device of the coupling capacitor and reducing the accident rate at the power facility and, as a result, increasing the service life of the equipment.

5 cl, 1 dwg