Based on the research of fault diagnosis technology of power transformer

GIS and switch cabinet in the existing GIS intelligent substation

a modeling method of GIS intelligent substation digital twin model is proposed combined with the digital twin technology.Through analysis

this paper suggests that the model can not only synchronously display the data of each instrument of the substation

but also carry out health assessment and fault diagnosis based on the real-time and historical data of the substation and display the corresponding position in the three-dimensional model

so that the running state of each device is clear

and the fault type and position indication is accurate.