Information modeling for line selection device and section locating device of single-phase earthing-fault is done based on IEC 61850 and object oriented method. The logical nodes of line selection and section locating of earthing-fault based on transient fault signals are defined. Using these logical nodes, the device models for fault line selection and feeder terminal unit(FTU) with fault section locating function are developed. The methods to obtain transient signals of zero sequence voltage and current are analyzed.
College of Electrical and Electronic Engineering, Shandong University of Technology
School of Electrical Engineering and Automation, Qilu University of Technology
School of Electrical Engineering, Shandong University
Key Laboratory of Control of Power Transmission and Conversion,Ministry of Education,School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University
Key Lab of Power Electronics for Energy Conservation and Motor Drive of Hebei Province, Yanshan University