Power function: Dual power switching, automatically and seamlessly switching to backup power supply in case of AC power loss, while achieving automatic management function for backup power supply;Communication function: multiple network and serial ports, supporting multiple communication protocols;Wireless communication: capable of wireless communication through touch laptops;Status indication: There are obvious local status indication signals for operation, communication, line faults, etc;Data processing function: arbitrary configuration and combination of data sent by the main station; Distribution transformer load rate, three-phase imbalance, remote sensing exceeding limit, extreme value, qualification rate statistics, etc;Fault detection: receiving and forwarding fault indicator signals; Identification and judgment of single-phase grounding faults in variable load cabinets;

