Research on Digital Twins Technology and Its Future Implementation in Transformer Overload Analysis

Overload is a common failure in substation operation. However, for large-capacity oil-immersed transformers which invariably operate at a voltage class of above 110kV, it is difficult to directly measure the hot spot temperature to avoid problems caused by abnormal temperatures considering their more complex internal structure. In recent years, digital twin technology has flourished, which now allows many industries to see its intelligent restructuring. This article discusses the cause, mechanism, and effects of transformer overload and how we can use digital twins technology to achieve comprehensive monitoring and fault analysis in transformer operation.