Research On The Practical Application Of State Maintenance Of Relay Protection Equipment In Intelligent Substation

Relay protection plays a very important role in the power system.However,with the expansion of the power grid,there is a deeper requirement on the reliability and economy of the power supply.Promote the use of substation relay protection and other secondary equipment,state maintenance can significantly reduce the time spent on equipment,increase the economic benefits of power grids.At present,the status maintenance of relay protection equipment in smart substation has become the development direction of the current overhaul technology of secondary equipment.At the same time,the structure and technology of the intelligent station itself pose a challenge to the status maintenance.Research on intelligent substation relay protection equipment status maintenance in practical engineering applications to improve substation operation and maintenance management level,for promoting the large-scale application of intelligent stations of great significance.Based on the experience of Relay Protection in the Year of the New Year,considering the actual technical requirements of the project,the author starts from the application of the project and conducts systematic research and analysis on the practical application of the state-of-the-art relay protection equipment in the intelligent substation.On the basis of understanding the structure of intelligent substation,this paper constructs the relay protection status maintenance process of intelligent substations taking state monitoring,condition diagnosis and maintenance decision as the main body from the perspective of engineering application.Based on the actual operation status of the equipment,a detailed analysis of each link is made.Analysis of the status quo of intelligent substation status maintenance practical application,select four typical cases of Liaocheng region to illustrate the practical application of state maintenance in the region of some attempts and work.According to the existing technical specifications,combined with the author many years of experience in relay protection,from the entire process of acceptance,personnel training,secondary safety measures and other standardized management and technical measures for the intelligent station status maintenance provide engineering application guide,intelligent substation relay protection specific equipment The practical application of state maintenance promotion has important guiding significance.Finally,the future development of intelligent substation relay protection equipment status maintenance application trends are prospected.