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.