During the construction of a distribution automation system

there are too many topological errors

such as ambiguities in feeder management ranges

isolated islands

and inconsistent running modes

etc. Based on the automatic graphing method

the conceptual diagram of distribution network

which stands for the relations of topology in the distribution automation system

is used to display the overview of distribution network models through dynamic model extraction

and tree and spring layout processes. It can be used to provide a great assistance to model validation in distribution automation system technically for users. The validity of this method is verified by specific project application.