Reclosers
A recloser is a device whose main function is the automatic disconnection and reconnection of partial sections of an electrical distribution network, when a short-circuit event or similar transient fault occurs.
Main Use
Used to automatically restore the energy supply when a failure has occurred in the distribution network. Reclosers are self-controlled equipment, whose main characteristic is to interrupt transient and permanent regime overcurrents using fast and slow reclosing according to the time-current curves defined in the relay, in order to carry out an adequate coordination with other devices located on the same circuit.
When a failure occurs at a point in the network, the recloser detects it, and at that moment it automatically proceeds to disconnect the portion of the network that is connected to it. After a certain period of time, the recloser reconnects the section of the network that was inactive, and if the failure is temporary, the service will be automatically restored when the equipment reconnects it. If for some reason the failure persists, the network will not be reconnected. In three-phase systems, even if a fault affects only one phase, the recloser disconnects all three.
