HVDC Three Gorges – Changzhou River using tall pylons. The electrode at Chujiahu is also used by HVDC Hubei - Shanghai for grounding. HVDC Three Gorges – Changzhou The HVDC Three Gorges – Changzhou is an long bipolar HVDC transmission line in China for the transmission of electric power from the Three Gorges power plant to the area of Changzhou. The transmission line went into service in 2004. It runs from the static inverter station, Longquan, away from the Three Gorges power plant to the static inverter plant, Zhengping, near Changzhou. The HVDC Three Gorges-Changzhou is a bipolar 500 kV powerline with a maximum transmission
Three Gorges Dam spillway gates of the dam might pose a risk of cavitation, similar to that which severely damaged the poorly designed and cavitating spillways of the Glen Canyon Dam in the US state of Arizona, which was unable to properly withstand the Colorado river floods of 1983. However, 163,000 concrete units of the Three Gorges dam all passed quality testing and the deformation was within design limits. An experts group gave the project overall a good quality rating. In order to maximize the utility of the Three Gorges Dam and cut down on sedimentation from the Jinsha River, the upper course