Distributed arc light protection system

The utility model provides a distributed arc light protection system, which relates to the field of medium and low voltage bus feeder switch cabinets, and comprises a main station, a plurality of arc light protection main control units, a plurality of arc light units and a plurality of VAMP arc light sensors, the arc light unit is used for collecting signals of the VAMP arc light sensors, the multiple VAMP arc light sensors are installed in a bus chamber, a circuit breaker handcart chamber, a cable chamber and an instrument chamber of a switch cabinet respectively, the arc light protection main control units are connected through single-mode communication optical cables, and the arc light unit is connected with the VAMP arc light sensors through special optical cables. The arc light units are connected with the in-station monitoring system through the arc light protection main control units, the main station is connected with a plurality of arc light protection main control units, each arc light protection ma