Discussion about the Structure of the Relay Protection and Fault Information Substation System

The purposes to build the protection relay and fault information system is to monitor, diagnose and find out network faults, also to monitor and control the state of secondary system. Combined with the projects of the relay and fault information system in Zhaoqing power supply bureau, the paper analyses the frameworks of substation system and standardize the accesses of substations. The theory and technology of relay and fault information system are successfully applied to the practical projects, which has important significance to ameliorate them later and more make use of them.