Insulating oil is an important component of transformers.Its quality directly affects the performance of the insulation system and the operation safety of the transformer.As working years increase,insulating oil interacts with oxygen,water,and other impurities in the environment to form a variety of aging products.This results in a decrease in its insulation and heat dissipation performance,which in turn causes failures.Therefore,analyzing and detecting transformer insulating oil is an important means to understand the working status of transformers.The analysis results are the reference basis for transformer maintenance and replacement of new oil.The ultraviolet-visible absorption spectrum was used to analyze insulating oil of different working years.The correlation between the aging degree of insulating oil and its ultraviolet spectral characteristics was obtained.The ultraviolet spectrum of furfural,a symbolic aging product,was studied by quantum chemical calculation.The mechanism corresponding to the ultraviolet-visible spectral characteristics of furfural was analyzed.The research results confirm the effectiveness of UV-visible spectroscopy in analyzing the aging degree of transformer insulating oil.The relevant results can be used as a reference for transformer detection.
关键词
紫外-可见光谱/绝缘油/糠醛/量化计算
Key words
UV-vis spectroscopy/insulating oil/furfural/quantum chemical calculation
维普
万方数据