Electric installation maintenance method and device

A maintenance device of an electric installation comprising electric equipment, the maintenance device comprising:

• circuitry configured to
• enter data representative of an electric installation to be monitored in a database,
• store data representative of electric equipment settings and parameters,
• store data representative of events occurring in said electric installation to be monitored in a database so as to constitute an events history,
• store criticality criteria used to determine a criticality level of malfunctions;
• detect malfunctioning of at least one electric protection equipment in the electric installation or of the electric installation itself,
• analyze causes of the malfunctioning according to data of the events history and a state of the installation,
• determine a criticality level of the malfunctioning based on the causes of the malfunction and the criticality criteria, and
• manage restoration of operation of a part of the installation that is out of service according to the causes of malfunctioning, a state of electric lines of the installation and the criticality level, according to a predefined decision tree,
• wherein in managing restoration of operation, the circuitry prevents automated restoration of operation of the part of the installation that is out of service when the criticality level of the malfunction indicates an Earth leakage or short circuit.

An electric installation comprising:

• electric equipment;
• and
• circuitry configured to
• enter data representative of an electric installation to be monitored in a database,
• store data representative of electric equipment settings and parameters,
• store data representative of events occurring in said electric installation to be monitored in a database so as to constitute an events history,
• store criticality criteria used to determine a criticality level of malfunctions;
• detect malfunctioning of at least one electric protection equipment in the electric installation or of the electric installation itself,
• analyze causes of the malfunctioning according to data of the events history and a state of the installation,
• determine a criticality level of the malfunctioning based on the causes of the malfunction and the criticality criteria, and
• manage restoration of operation of a part of the installation that is out of service according to the causes of malfunctioning, a state of electric lines of the installation and the criticality level, according to a predefined decision tree,
• wherein in managing restoration of operation, the circuitry prevents automated restoration of operation of the part of the installation that is out of service when the criticality level of the malfunction indicates an Earth leakage or short circuit.