A recloser can operate a predetermined number of times before "locking out." What is the range of these operations?

The range of operations for a recloser before it locks out is correctly identified as 1 to 4. This function is critical in electrical distribution systems, where reclosers are designed to improve reliability by attempting to automatically reset themselves after detecting a fault. The predetermined range allows for a balance between giving the system a chance to clear transient faults—like those caused by branches touching power lines—and protecting the equipment from prolonged faults.

Typically, reclosers will try to reenergize the line a few times within this range, allowing the power restoration process to proceed efficiently while also ensuring that if a fault persists, the recloser will lock out to prevent further damage. By allowing between 1 to 4 operations, the system can effectively manage fault conditions without compromising safety or equipment integrity.