Abstract: Abstract:The security and stability of the power system are always the main objectives of the system operation. In order to ensure the power grid errorfree operation, the realtime error correcting and checking has become a key requirement. In “large operation” support system, the highsoon realtime database is used as information storage stack to record the operation status of the equipments realtime, and the wiring diagram error correcting and checking system is used to detect the faults immediately and reduce the error probability. Simultaneously, the system can provide realtime error information early warning and auxiliary judgment, which are helpful for power grid dispatchers to improve the correctness of fault information judgment.

Key words: Keywords:power grid dispatch, wiring diagram error correcting and checking, realtime data monitoring, dispatch automation