POWERCHINA has done power transmission and transformation engineering work on various voltages -- 110 kV, 220 kV, 330 kV, 500 kV, 660 kV, 750 kV, 800 kV, 1,000 kV -- and has the equipment for power transmission and transformation engineering work at various voltages, as well as an international traction machine and tensioner.
By the end of 2012, it had completed work on 27,117 km of power transmission lines at or above 110 kV, and had 14,059 km of lines of 220 kV or higher, 4,264 km of lines at 110 kV or higher under construction, and 2,272 km of 220 kV or higher. It had completed 780 transformer substations and convertor stations at 110 kV or higher, including 380 transformer substations and convertor stations at 220 kV or higher.
Jindongnan-Nanyang-Jingmen 1,000 kV extra-high voltage AC test demonstration project done by POWERCHINA.
Fengxian convertor station, Xiangjiaba-Shanghai ±800-kV extra-high voltage DC power transmission demonstration.
POWERCHINA's Zhoukou 500 kV transformer substation, winner of a China Construction Engineering Luban Prize.