PIPELINE SYSTEM PROTECTION FROM EXPOSURE accumulates and flows of direct and alternating currents induced by an external source of stray currents

摘要

FIELD: electricity.;SUBSTANCE: invention relates to protection of metal articles from corrosion. The device for pipeline protection from action of leaking in and out constant and alternating currents induced from external ground current sources contains the capacitor unit for alternating current filtration placed in an electric cabinet, and it is designed with a possibility of connection to the cathodic protection station of (CPS) and in addition contains a rectifier diode bridge with a possibility of connection between CPS anode grounding conductor and the protected pipeline parallel to CPS output, and a ballast load resistor connected to the output of the rectifier diode bridge parallel to the capacitor unit.;EFFECT: improvement of reliability of the device of pipeline protection from action of external sources of constant and alternating currents and simplification of its design.;1 dwg