INSTALLATION OF DETECTION OF FAULT CURRENT SENSITIVE TO ALL CURRENTS, WITH INSTALLATION OF DETECTION OF ALTERNATE OR PULSABLE FAULT CURRENT BY CONTINUOUS FAULT CURRENTS.

摘要

THE INVENTION IS RELATED TO A DEVICE FOR THE DETECTION OF DEFECT CURRENT WITH A PROVISION OF A SUMMARY CURRENT TRANSFORMER (1) THAT HAS THE PRIMARY WINDINGS (2) FOR A SURVEILLED CURRENT CIRCUIT AND A SECONDARY WINDING (3). THROUGH THE CONTINUOUS FAULT CURRENTS, A PREMAGNETIZATION OF THE TRANSFORMER OCCURS, WHICH NOTELY AFFECTS THE ACTIVATION OF THE DEFAULT CURRENT DETECTION DEVICE FOR ALTERNATING PULSING FAULT CURRENTS. THIS DEFECT IS REMEDYED BY CUTTING THE CHARACTERISTIC LINE OF MAGNETIZATION, FOR WHICH THE SECONDARY WINDING (3), FOR EXAMPLE, IS CHARGED WITH A RESISTANCE (4).