Digitalization Reconstruction of 110kV Libao Substation in Haian

There are many issues to be solved during digitalization reconstruction of conventional substation.So in this paper,110kV Libao substation is taken as an example,the digitalization reconstruction is carried out.This substation realizes standardization of signal collection,transmission,processing and control with IEC61850 communication standard.Electronic transformer is used to implement digital sampling,and the process level intelligent unit is applied to achieve collection of switching signal and digitalization of control.The whole substation network is set up by GOOSE communication program to realize the digitalization of signal collection,network transmission,and standardization of communication,etc.The digitalization reconstruction is finished under normal operation of whole substation,which provides experience of operation and reconstruction.