The utility model discloses a change management system is joined in marriage to low pressure intelligence sets up an at least switch board, every in the system be equipped with at least one residual current circuit breaker in the switch board, every residual current circuit breaker's output all is equipped with current -voltage acquisition unit, every all be equipped with sub - watch -dog in the switch board, every interior sub - watch -dog of signal to this cabinet that the interior current -voltage acquisition unit output of switch board was gathered, main watch -dog are equipped with main communication unit, the main communication unit signal owner processing unit of receipt, the display element who receives main processing unit parametric signal who receives sub - communication unit signal, the alarm unit of receiving main processing unit acquisition unit 0. The utility model has the advantages of through the collection to platform district power consumption information and the scientific analysis of system, platform district fortune dimension personnel can be to the equipment operating mode in platform district, and line earth leakage, load condition have an audio -visual understanding, effectual improvement troubleshooting efficiency, enhancing power supply reliability and user satisfaction greatly.