OREANDA-NEWS. The HVDC link will be operated by the State Grid Corporation of China and is expected to enter service at the end of 2018. Siemens is manufacturing 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, as well as with local partners.

HVDC technology reduces the loss of electrical power during transmission over long distances. At the beginning and end of every HVDC line, the direct current is converted into alternating current, and vice-versa, at converter substations. The transformers feed these substations and provide for the transformation of the high current and voltage.