DIFFERENTIAL PROTECTION DEVICE FOR DETECTING A FAULT CURRENT

The subject of the present invention is a differential protection device (1) for detecting a leakage or fault current in an electrical installation. Said device (1) comprises, on the one hand, a transformer with a ferromagnetic core (T), with a primary consisting of at least two of the aforementione...

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Bibliographic Details
Main Authors DOLISY, Bastien, JOYEUX, Patrice
Format Patent
LanguageEnglish
French
German
Published 29.05.2024
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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Summary:The subject of the present invention is a differential protection device (1) for detecting a leakage or fault current in an electrical installation. Said device (1) comprises, on the one hand, a transformer with a ferromagnetic core (T), with a primary consisting of at least two of the aforementioned conductors (P1, P2, P3, N) and with at least one secondary winding (BS), and, on the other hand, at least one processing and control circuit (ETC) suitable for processing the signal induced across the terminals of the secondary in the event of a fault and for controlling an electromagnetic actuator (MC). Differential protection device (1) characterized in that a passive circuit (CP) comprising at least one inductor (L) as well as at least one resistor and/or at least one capacitor (C) in series is connected to the terminals of the secondary winding (BS), in parallel thereto.
Bibliography:Application Number: EP20180736993