Device for monitoring the operation of electrical cables in a meshed network

A device for monitoring the operation of a plurality of electrical cables, connection or coupling accessories, switchgear and transformers included in a meshed electrical network comprising a plurality of branches comprising a plurality of end branches and a plurality of intermediate branches, said end branches having only one end connected to one of the branches whereby one of the intermediate branches and said intermediate branches having two ends each connected to one of the branches, said device comprising:

• said meshed network;
• at least two inductive sensors suitable for detecting a partial discharge occurring in said meshed electrical network, said at least two inductive sensors are placed only on intermediate branches of said meshed electrical network;
• and
• a means for locating the source of said partial discharge.

A device for monitoring the operation of a plurality of electrical cables, connection or coupling accessories, switchgear and transformers included in a meshed electrical network comprising a plurality of branches including a plurality of end branches and a plurality of intermediate branches comprising at least one intermediate branch to which are connected several end branches of the plurality of end branches, said end branches having only one end connected to one of the branches, said device comprising:

• said meshed network;
• at least two inductive sensors suitable for detecting a partial discharge occurring in said meshed electrical network, said at least two inductive sensors are placed on said intermediate branch to which are connected several end branches of the plurality of end branches so that several end branches are contained between the two inductive sensors;
• and
• a means for locating the source of said partial discharge.

A device for monitoring the operation of a plurality of electrical cables and pieces of electrical equipment included in a meshed electrical network comprising a plurality of branches comprising a plurality of end branches and a plurality of intermediate branches, said end branches having only one end connected to one of the branches whereby one of the intermediate branches and said intermediate branches having two ends each connected to one of the branches, said device comprising:

• said meshed network;
• at least two inductive sensors suitable for detecting a partial discharge occurring in said meshed electrical network;
• and
• a means for locating the source of said partial discharge, adapted to apply a time-of-flight algorithm, comprising transmitting a signal, obtaining the travel time of this signal between its transmission and its reception and deducing therefrom the location of the partial discharge in the meshed electrical network and identifying the cable or other piece of electrical equipment which has suffered anomaly which provoked this partial discharge.