Intelligent substation

The utility model provides an intelligent transformer station. The system comprises a main transformer, a body intelligent terminal and a spare power automatic switching device. The main transformer is connected with the body intelligent terminal. The body intelligent terminal is connected with the spare power automatic switching device through an optical cable. wherein the body intelligent terminal is provided with a first input point and a second input point, the first input point is positive voltage, a locking loop is arranged between the first input point and the second input point, the locking loop comprises a non-electric quantity outlet relay contact and a hard pressing plate which are connected in series, and the non-electric quantity outlet relay contact is connected with the bodyintelligent terminal. According to the utility model, GOOSE locking information can be isolated during live-line maintenance or defect elimination, thereby preventing error locking of the spare powerautomatic switching devic