Study Of Relay Protection And Fault Information System Based On Double Standby Channels

Relay protection and fault information system (RFIS) is monitoring, controlling and managing of secondary device. It is a technology support system as well as an information support, fault analysis, diagnosis and decision system. The establishment of RFIS has important theory and application value to improve the level of intelligent and informational in power dispatching, enhance the capacity of analysis and handling in grid fault.The paper described the necessity and significance of developing the RFIS. It has thorough analysis in the study status and architecture of RFIS, and the structure and function of sub-station, master-station and communication system, as well as the deficiency of RFIS. In view of the problem of channel construction in communication system, it presents three proposals of main and standby channel to meet different situation. According to the operation status of Hulunbeir power grid, it researched the building of RFIS in Hulunbeir, and construct suitable main and standby channel for various kinds of sub-station system. It provides guarantee to stable operation of RFIS.