The transformer is the core equipment of the power system

and it is of great significance to reasonably evaluate the performance of the transformer. Based on the causes of transformer faults and the sources of evaluation indicators

this paper proposes a transformer performance evaluation method based on quantitative correction hierarchy theory. Aiming at the complex structure and large number of evaluation factors in the performance evaluation index system of transformers

firstly

according to the accuracy of the transformer faults reflected in the index system

the key indicators that can reflect the insulation performance

oil performance

overheat fault and discharge fault of the transformer are selected. The key index system of transformer performance evaluation is established. Secondly

the analytic hierarchy process is combined with the quantitative correction scoring function to determine the optimal weight of the indicators

and the scores of each indicator are obtained. The influence of subjective factors on performance evaluation is reduced. Finally

two transformers of different voltage levels are selected for performance evaluation to verify the rationality and practicability of the method used.