Research And Maintenance Of Electrical Primary System And Relay Protection In 110kV Intelligent Substation

The development of intelligent substation will better serve the development of the smart grid, intelligent substation as an significant hub, its development level directly affects the safe and stable operation of the entire grid. Intelligent substationunlike traditional substation, but the effect is still the same, while can realize the energy conversion, is the nucleus of the intelligent control foundation platform and energy conversion, one of its importance is self-evident.110kV Xia Zhang substation is located in Daiyue District of Tai’an City, Xia Zhang Zhen, October 28,2014, which put into production after equipment installation is completed, thai city area. Shoulders on the responsibility of power supply in taian in western area power supply, is an important component of taian western grid has always been to promote local economic development to provide a strong power protection.The Taian new 110kV Xia Zhang intelligent substation as a model, through study of the system and chooses separately in the engineering construction scale and scope of design, the main electrical wiring, short-circuit current and main equipment selection, insulation coordination and overvoltage protection, cable facilities were investigated.Analysis and application of state detection, comprehensive optimization design, improve operation and maintenance management. Respectively in the dispatch automation systems, integrated power systems, communication systems, and the station, the second set of equipment cabinets and layout, component protection and automatic devices, analysis, focusing on online monitoring, research and operating sequence of operation and maintenance management. With the on-line monitoring technology matures, and sequence manipulation techniques to achieve real-time systems and fiber-optic network applications, will better enhance the safety level and operation and maintenance management intelligent substation.Study of intelligent substation, forming convenient operational management system, a typical experience, etc. the typical experience, of intelligent operation and maintenance of power plants has important significance, and the intelligent network development has laid a very good foundation and valuable experience accumulated.