Reasons for the Duration of Defect Handling in the L W9-72.5 Type SF6 Circuit Breaker and Corrective Measures

The L W9-72.5 type SF6 circuit breaker is a critical component in high-voltage power systems. It is responsible for breaking and connecting no-load current and load current under normal conditions, and it can also work in conjunction with protection and automation devices to interrupt fault currents, prevent accident escalation, and ensure the safe operation of the power system. During maintenance and inspection, Benxi Company has observed frequent occurrences of defects in the L W9-72.5 type SF6 circuit breaker, resulting in extended defect handling times. This can lead to worker fatigue and prolonged power outages, which can impact user satisfaction and pose significant safety risks.[1]