Intelligent transformer station protection device running state evaluation device and maintenance decision method

The invention discloses an intelligent transformer station protection device running state evaluation device. A station side protection device inspection device comprises a first signal interface module, a second signal interface module, a third signal interface module, a signal decoding module, a time synchronization module, an information coding module, a station side man-machine interaction module, a feature data pre-processing module and an inspection report module, and a main station side protection device evaluation device comprises a signal interface module, a main station side human-computer interaction module, a signal correction module, an evaluation operation module, an operation and maintenance auxiliary strategy module. The invention further discloses an intelligent transformer station protection device maintenance decision method. The evaluation device is advantaged in that based on operational data of intelligent substation protection equipment alarm, abnormal displacement, action, online monit