1000 KV southeast Shanxi to Nanyang to Jingmen UHV ac testing demonstration project [Mar 23,2015]
Operating voltage, the highest in the world's most advanced ac - 1000 KV power transmission and transformation project southeast Shanxi - nanyang - jingmen UHV ac testing demonstration project on August 12, 2010 through the national acceptance, entered the era of UHV ac/dc hybrid power grid operation in China, 2015 years ago in UHV grid will form a "three vertical and three horizontal ring network structure".
1000 KV southeast Shanxi - nanyang - jingmen UHV ac testing demonstration project up in southeast Shanxi Shanxi changzhi from (Changzhi) to stand, and closed by the Henan nanyang in Hubei jingmen substation .All single loop erect, total length of 654 km, crossing the Yellow River and the Han river. Substation capacity of 6 million KVA. System nominal voltage 1000 KV, the highest running voltage 1100 KV, static investment about 5.7 billion Yuan. This line construction began in August 2006, 28 months after construction completion .Engineering in August 2006 to obtain approval of the national development and reform commission issued the approval documents, with the end of construction, fully completed in December 2008, put into operation on December 30, complete system debugging, January 6, 2009, 22 when completed 168 hours test run into commercial operation.