6. Protection system

6.1 Purpose of the system

Industrial network protection [4] is designed to :

• protect people and property;

• maintain network stability and continuity of operation;

• avoid partial or total destruction, following the appearance of anomalies in certain components and the risk of fire due to ignition.

To this end, the protection system must detect abnormal electrical operation due to :

• insulation faults between conductors and earth or between conductors;

• prolonged overload or fault current ;...