Investigation of ±800 kV UHVDC Transmission Standard System and the Standards for Main Equipments

A whole scheme of design standars for ±800 kV UHVDC transmission is not yet available in the world.Based on the theoretical study and practic,and taking the exist standards for ±500 kV voltage level into account,this paper investigates the architecture principle of standards for ±800 kV UHVDC transmission,especially with focus on the standards for its main equipments such as converter transformer,converter valve,smoothing reactor,bush and insulator.All these proposed standards are pioneers in the world.