A Transformer Insulation Life Assessment Method Considering Variational Annual Load Coefficient
摘要
The transformer insulation life determines the operating state and useful life of the transformer, and accurately predicting the remaining useful life can effectively improve the transformer maintenance efficiency. A10 kV oil-immersed stereo roll core amorphous metal transformer is taken as the research object in this paper, based on the calculation of hot spot temperature, the transformer insulation life loss under variable load coefficient was studied, and the remaining insulation and useful life of transformer were predicted. The results show that the proposed method can improve the practicability of transformer insulation life assessment in the actual operation and maintenance of transformers.