There are many applications where maintaining continuous power is critical, and for locations that are remote and unmanned, even more important when electrical faults occur – in particular, earth leakage.
It is therefore important to re-establish power as quickly as possible, and Earth Leakage Relays with an auto-reclosing operation will do this quickly and efficiently.
Their main purpose is to constantly monitor and detect earth leakage faults, trip in the event of a fault occurring, but then automatically re-connect the supply provided the fault has cleared. They can be preset to re-try after a set “number of attempts”. If the fault still exists, it will then remain tripped until manually reset.
The auto-reclosing ELR therefore has several key benefits:
– Reduces the risk of electric shocks and fire hazards