FIELD: physics; control.
SUBSTANCE: invention relates to telemechanics and automated systems for measuring, monitoring, adjusting, diagnosing and controlling remote objects, and specifically to systems for corrosion monitoring of electrochemical protection of gas pipelines, particularly cathodic protection units. The telemechanical system for monitoring and controlling cathodic protection units of gas pipelines comprises cathodic protection units, a control station with an automated workstation for a controller and a communication channel between cathodic protection stations and the control station. The communication channel is set up by connecting an overhead power line to high-frequency chokes and coupling capacitors, connected to coupling filters which are provided with grounding blades and are connected to high-frequency communication units, one of which is installed at the control station and is linked to the automated workstation of the controller, and the other are installed in the cathodic protection units and are linked to monitoring and control units; furthermore, each anode grounding connection and each pipeline drainage point is connected to a measuring transducer which is linked to the monitoring and control unit.
EFFECT: high reliability of cathodic protection units of gas pipelines.
2 dwg
