Full name of the project:Guangdong Hong Kong Macao Greater Bay Area DC Back-to-Back Power Grid Project
1. Basic information of the project
a) Voltage level: ± 300kV
b) Production date: May 2022
c) For the first time in the world, reasonable zoning has been carried out for the complex structure of the power grid, and flexible DC technology has been used to flexibly interconnect the partitioned power grids. Normally, power can be transmitted to each other, and in case of faults, power support can be quickly provided in less than 0.1 seconds, greatly improving the safety and stability level of the Guangdong Hong Kong Macao Greater Bay Area power grid
2. Bid winning situation
1) Number of winning bids
21 specifications and models, 24602 composite insulators, including
Pillar FZSW - ± 300/25( φ 180) 776 pieces
Pillar FZSW - ± 300/30( φ 165) 776 pieces
2) Installation position
a) Converter valves and valve halls on the east and Zengcheng sides of the central passage
b) Converter valves and valve halls on the Shajiao and Shiyang sides of Nantong Road