In the background of “large operation”

the wide area distributed prefecture-county integrated dispatching automation system can greatly conform to the construction need of prefecture-county smart grid dispatching automation. But the wide area distribution of data acquisition

various applications and the computer nodes is bound to bring about the risks of more faults and lower reliability as well as the data inconsistency caused by the network faults. The design of network division/recovery mechanism is intended to solve the problems of the prefecture-county dispatching operation due to the network faults. The wide area distributed prefecture-county integrated dispatching automation system is briefly described

with emphasis on the key technology and principles of the network division/recovery mechanism. It is proved that the communication network division/recovery mechanism can effectively safeguard the operation of the wide area distributed prefecture-county integrated dispatching automation system as can be seen from field projects in operation.