ST-HG620 Busbar Arc Light Protection Device

Overview: In Chinas medium and low-voltage busbar short-circuit faults, the key equipment damage and personnel injuries are mainly caused by arc light. However, most of China medium and low-voltage busbars are not equipped with fast busbar protection, and only simple arc suppression devices and transformer backup protection are used. These protections have low intelligence and slow action speed, often prolonging the fault clearing time, thereby further expanding the extent of equipment damage, and even causing vicious accidents offire spreading across camp, impacting the primary operation of transformers, and even causing major safety accidents. Therefore, configuring dedicated arc light protection for important medium and low-voltage busbars is an important measure to ensure the safe and stable operation of the power system. The busbar arc light protection device adopts a dual-criterion principle of arc light + current, with extremely fast action speed, capable of clearing faults within several milliseconds, effectively limiting the damage of arc light faults to equipment and personnel, with the characteristics of high reliability, fast action, and convenient configuration.