SELECTIVE AUTOMATED SYSTEM FOR DIAGNOSING AND MONITORING THE STATE OF INSULATION OF POWER CABLE LINES Russian patent published in 2019 - IPC G01R31/08 

FIELD: measuring equipment.

SUBSTANCE: invention relates to electric measuring equipment and can be used in electric installations, at electric stations and substations, electric networks and communication networks. Summary: selective automated system for diagnostics and monitoring of insulation state of power cable lines includes two measuring sets. One set is installed at the beginning of the controlled line, and the other set is installed at its end. Each measuring set contains zero-sequence current transformers by number of connections, zero sequence current sensors, zero-sequence voltage measurement transformer, zero sequence voltage sensor, current transformers by number of phases of protected connection, measuring voltage transformer, negative sequence current and voltage filters, microcontroller, personal computer, interface converter, power supply unit of microcontroller.

EFFECT: determination of insulation state and prediction of insulation service life.

1 cl, 3 dwg