Full name of the project：Chongqing Hubei DC back-to-back networking project
1. Basic information of the project
a) Voltage level: ± 420kV
b) Production date: July 2019
c) At that time, the flexible DC transmission project with the highest voltage level and largest transmission capacity in the world solved the instability problem of the 500 kV cross regional long chain power grid between Sichuan, Chongqing, and the four provinces of central and eastern China, optimized the security and stability control strategy of the power grid, and improved the flexibility and reliability of the power grid operation.
2. Bid winning situation
1) Number of winning bids
9 specifications and models, 9680 composite insulators, including
Pillar FZSW - ± 420/25（ φ 165) 560 pieces
2) Installation position
North Channel Converter Valve Insulator
1. Basic information of the projecta) Voltage level: ± 420kVb) Production date: July 2019c) At that time, the flexible DC transmission project with the highest voltage level and largest transmission capacity in the world solved the instability problem of the 500 kV cross regional long chain power g
1. Basic information of the projecta) Voltage level: ± 500kVb) Production date: June 2020c) Serving the Green Winter Olympics project and providing 100% green electricity for the Beijing Winter Olympics; The world's first four terminal flexible DC power grid that delivers large-scale wind power
1. Basic information of the projecta) Voltage level: ± 800kVb) Production date: December 2020c) The first national demonstration project for ultra-high voltage multi terminal DC, the world's first ultra-high voltage flexible DC project, and currently, the world's voltageThe highest level an
