Wudongde Hydropower Station is located on the border of Sichuan and Yunnan provinces in the lower reaches of the Jinsha River in southwest China. It is undergoing an unprecedented 800 kV flexible DC short-circuit test, the success of which would further boost the operation capability of the dam project that already boasts a number of world records in the application of hydropower technologies. Join CGTN to witness the great moment for China's fourth largest hydropower plant, the seventh largest in the world.