Power network device state monitoring and diagnostic system

The invention relates to a power network device state monitoring and diagnostic system which comprises an application server, a database server, a trunk switchboard, a disk array, a SUB data bus, a main station workstation, a plasma display device, a video terminal and a video processor. The trunk switchboard calls external power network device state data and transmits the called data to the SUB data bus in the power network device state monitoring and diagnostic system in an ESB mode, the SUB data bus is respectively connected with the application server, the database server, the disk array, the main station workstation and the video terminal, the output of the main station workstation is connected with the video processor, and the output of the video processor is connected with the plasma display device. By means of the power network device state monitoring and diagnostic system, the state information of electric transmission and transformation equipment is collected in real time on line, technical persons can conveniently analyze and master the device state, the routine experiment power-off time is effectively shortened, and the technical persons can easily use various device information data to conduct effective state evaluation and diagnose device states.