To give the best quality of supply to customers, it is oftennecessary to implement a set of technical solutions, in order torestrict as much as possible the consequences of various incidents whichcan affect power delivery continuity. Among these solutions, the authorsexamine decentralized reflex-action devices (sensitive and highlyavailable protective relays, simple automatic devices scattered on thenetwork, such as autoreclosers) which must inform the control centrelevel of all the switching operations they make. This centralized levelis the only one able to implement a fast and reliable power restorationfor all types of incidents
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