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Siemens Receives Order for World’s First 1,100-kV HVDC Transformers

Siemens will cooperate with local partners to deliver the world’s first 1,100-kV converter transformers for the first and largest high-voltage direct-current (HVDC) transmission link in the world. The converter transformers have a capacity of 587.1 megavoltamperes, making them the most powerful in the world, according to Siemens.

The planned transmission link will connect Changji and Guquan in China, across more than 2,000 miles. It is operated by State Grid Corporation of China and has a transmission capacity of 12 GW.

Siemens will manufacture the transformers in its network of factories led by its transformer plant in Nuremberg, Germany, in cooperation with its HVDC transformer factory in Guangzhou, China.

“With our transformers and our technology, we support a global power grid, called Global Energy Interconnection, GEI,” said Beatrix Natter, CEO of the Transformers Business Unit within the Siemens Energy Management Division. “In this way, we are also helping to interconnect the global ultra high-voltage three-phase grids and ultra high-voltage DC grids on the 1100 kV DC and 1050 kV AC level.”

The project is expected to begin operation at the end of 2018.