ABB develops most powerful high-voltage direct current transformer

Power and automation technology group, ABB, has developed and tested a 1,100 kV ultrahigh-voltage direct current (UHVDC) converter transformer breaking the record for the highest DC voltage levels ever, and facilitating more power to be transmitted efficiently over longer distances.
The Xiangjiaba-Shanghai link, commissioned by ABB was the world’s first commercial 800 kV UHVDC connection. It has a capacity of 6,400 MW and covers a distance of just over 2000 kms, making it the longest of its kind in operation. The new 1,100 kV converter transformer technology will make it possible to transmit more than 10,000 MW of power across distances as long as 3,000 km.

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