PR550-B Bus Arc Protection

PR550-B bus arc light protection device provides fast protection for medium and low voltage buses and switch cabinets in substations, power plants, industrial enterprises and other occasions. When an arc short circuit occurs, it can be located quickly. The arc protection device can cut off the fault current quickly to minimize the damage to equipment and personnel caused by arc light. The device can carry a large number of monitoring paths and is highly scalable. When there are no more than 24 arc monitoring points, only one bus arc light protection device can be used. When there are more than 24 arc monitoring points, the switch cabinet can be protected by multiple bus arc protection devices, one bus arc protection device and at most one extension unit.