Abstract
As the core equipment in many construction power fields, the reasonable life management of power transformer plays an important role in ensuring the safe production and economic benefits of the public and enterprises. Based on lambert-w function, the exact solution is obtained by calculating the total annual allocated cost. The variable values that may have errors in the function model are deeply analyzed. Combined with the inherent characteristics of power transformer, the factors affecting the economic life in the results are analyzed. The reliability of the method is verified by an example. Compared with the traditional tabular method, this method is convenient to further analyze the influencing factors and change laws of economic life. At the same time, through the analysis of specific problems, this method can also be used to study the economic life of other equipment. It has popularization value.
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