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
Arch dam dam stronger foundation is required as it involves overhangs at the abutment sections. The constant angle arch dam is that in which the central angles of the horizontal arch rings are of the same magnitude at all elevations. Arch dam An arch dam is a concrete dam that is curved upstream in plan. The arch dam is designed so that the force of the water against it, known as hydrostatic pressure, presses against the arch, compressing and strengthening the structure as it pushes into its foundation or abutments. An arch dam is most suitable for narrow canyons or gorges with