Non-contact inspection system and method for transformer substation

The system comprises an inspection terminal, a power unit is arranged in the inspection terminal, a detection module is arranged on the inspection terminal, and a signal processing unit, a GPS positioning unit and a communication unit are arranged in the inspection terminal. The signal processing unit is electrically connected with the power unit, the detection module, the GPS positioning unit and the communication unit, and a path navigation module is embedded in the signal processing unit; the communication unit is in communication connection with the monitoring host, and the monitoring host is in communication connection with the plurality of alarm ends and the GIS system. The inspection terminal automatically inspects the interior of the transformer substation according to the established inspection path to obtain acoustic imaging and thermal imaging data of each transformer, a short message prompt is sent to the alarm terminal after the abnormal transformer is determined, the inspection path is updated a