Design and Application of Generator-transformer Group Protection Device in Intelligent Hydropower Station

With the smart grid and substation technology continues to improve,development of hydropower station is also following the intelligent direction.New requirements for generator-transformer group protection of smart hydropower station are put forward.The main structure and design features of the generator-transformer group protection device with the new requirements are introduced.In addition,the equipments concerned for intelligent generator-transformer protection device and process-layer interfaces as well as its application and design scheme in the smart hydropower station are also introduced.