The project is situated on the Jinsha Jiang River at the Xiluodu dam, and includes seven three-pole systems, each with a length of 620m, while single-tube tube length is about 12.5km.
Xiluodu hydropower plant is designed to produce around 3900 megavolt ampere (MVA) at a voltage of 550 Kilovolt (kV) and a rated current of 4500 ampere (A).
Seven three-pole GIL systems, are expected to carry about 3900 MVA of power to the overhead power lines, as these are inserted vertically in four shafts to the right and left of the dam.
Siemens Energy project manager Mathias Schreiber said the company has completed the world’s longest vertical GIL installation in the Xiluodu project.
"This is also the first time technical figures such as 550 kilovolts of operating voltage and 3900 MVA transmission power per system have been involved. We’re proud that we completed this massive project in such a short time under complex installation conditions at the job site," Schreiber added.
