330kV Substation of Maerdang Hydropower Station is located on the mainstream of the Yellow River at the junction of Tongde County, Hainan Tibetan Autonomous Prefecture, Qinghai Province and Maqin County, Golog Tibetan Autonomous Prefecture, with an elevation of 4,400 meters, steep terrain, rainy and snowy climate, and the minimum temperature of -40℃. The operating environment of the equipment is extremely poor. With an installed capacity of 2,200MW, the power station is the highest hydropower station in the Yellow River Basin. It is of long-term significance to improve the reliability and stability of the power supply of Golog Power Grid and to promote the eco-environment of the three river source region and promote the economic development in this region. Xi'an Shendian has upgraded the system design against the harsh natural conditions in Maerdang. The system has been working very well since it is put into operation and is praised highly by the user!

(Qinghai Maerdang 330kV substation lightning arrester on-line monitoring)