Which device minimizes outage time after a temporary fault?

Reclosers are automatic switching devices designed specifically to minimize outage time following temporary faults in the electrical grid. When a fault occurs, such as a short circuit caused by fallen tree branches or a lightning strike, the recloser detects the fault and temporarily disconnects the affected section of the circuit. It then automatically attempts to re-energize the line after a preset amount of time, allowing the system to restore power quickly if the fault clears itself.

This functionality is particularly advantageous because many faults are temporary, and restoring power rapidly can reduce the duration of service interruptions. If the fault persists after several attempts, the recloser will lock out the circuit to allow maintenance crews to safely address the underlying issue.

In contrast, cutout switches are primarily used as protective devices for equipment rather than minimizing outage time, while sectionalizers are used in conjunction with reclosers to isolate faulty sections but do not inherently restore power. Gang-operated switches require manual intervention to operate, which contrasts with the automatic nature of reclosers. Thus, reclosers stand out as the most effective solution for reducing outage time after a temporary fault.