Real-time power grid monitoring system

The invention relates to a real-time power grid monitoring system comprising a terminal, a fault indicator, a fault locator, and a database server. The terminal is used for inquiring and invoking therunning state of a distribution network by a user; the fault indicator is used for indicating a device having a fault in a distribution network; the fault locator is used for locating the device having a fault in the distribution network; and the data server is used for storing device information in the distribution network. The fault locator locates the device having a fault in the distribution network; the fault indicator indicates the device having a fault in the distribution network and sends the information to the terminal via the network; and the data server stores information of the device having the fault. Therefore, the running situation of the line is monitored in real time by using the network topology technology; the zone in which the fault is located is determined once the fault occurs; and thus the r