Evaluation of the state of transformer area according to the basic data is the basis for making decisions in transformer area management. In view of such problems as the large number of transformer areas

lack of standardized management

and the incomplete data with the low-voltage distribution network

a transformer area management-oriented comprehensive evaluation method of transformer area state is proposed. First

an indicator system covering grid and load characteristics is established because of the easy accessibility of data. A state evaluation model of transformer area is then designed based on the improved rank correlation analysis method for calculating the evaluation value to quickly evaluate the state of transformer area. Owing to the adjustability of the rank relation

the method with its strong adaptability and generalization provides a reference for transformer area management. Finally

an example analysis according to the actual data of a power supply bureau is given to prove the effectiveness and universal applicability of this method. This work is supported by National Natural Science Foundation of China (No. 50937001) and Fundamental Research Funds for the Central Universities (No. 2012ZM0018).