Transformer substation cable calibration detection device and method

According to the transformer substation cable calibration detection device and method, cable cores of a to-be-detected cable group are switched through an HMI human-machine interface and a double-pole multi-throw change-over switch of a source end device, it is guaranteed that the switching time is within 2 s, a switching signal is sent to a terminal device in a lora communication mode, a detection loop is formed, cable calibration is completed by one person, and the detection efficiency is improved. And meanwhile, the lora communication mode is high in anti-interference capability and high in timeliness, and is suitable for transformer substations with complex environments. Meanwhile, whether the cable core of the to-be-detected cable group is qualified or not is judged according to the voltage value of the detection loop and the cable core resistance value of the to-be-detected cable group collected by the ADC module, and cable checking detection of the to-be-detected cable group is completed. The transform