DEVICE FOR DETECTING A FAULT IN AN ELECTRICAL NETWORK, ELECTRICAL NETWORK OR EQUIPMENT COMPRISING SUCH A DEVICE AND METHOD FOR DETECTING A FAULT

摘要

The invention relates to a device (D) for detecting a fault in an electrical network (1), comprising at least one electrical equipment (E) which is electrically connected to a first power conductor (C1) and to a second power conductor (C2), the electrical network (1) being provided with a common conductor (Cc). The device comprises a first measuring member (O1) of the common mode voltage present on the power conductors (C1, C2) and a second measuring member (O2) of a current flowing in the power conductors (C1, C2). The device also comprises a calculator (UP) configured to determine over a determined observation period a mixed energy (Emix) transported in the measurement region from the first variable (Vres) and the second variable (Inet). The invention also relates to an equipment, a localization system and a method for detecting a fault in an electrical network.