The Yunnan–Guangdong HVDC is a
high-voltage direct current
A high-voltage direct current (HVDC) electric power transmission system (also called a power superhighway or an electrical superhighway) uses direct current (DC) for electric power transmission, in contrast with the more common alternating curre ...
transmission system connecting
Chuxiong in the
Yunnan
Yunnan , () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is ...
to Suidong,
Zengcheng in
Guangdong
Guangdong (, ), alternatively romanized as Canton or Kwangtung, is a coastal province in South China on the north shore of the South China Sea. The capital of the province is Guangzhou. With a population of 126.01 million (as of 2020) ...
,
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
. It is the first HVDC link in the world operating at a transmission voltage of 800 kV.
[
] The transmission line is operated by
China Southern Power Grid
China Southern Power Grid Company Limited (CSG; ) is one of the two Chinese state-owned enterprises established in 2002 according to the precept to reform the power system promulgated by the State Council, the other being State Grid Corporatio ...
. In 2007, the order to supply the system was awarded to
Siemens Energy.
[
] The first pole was put into operation in December 2009 with the second pole to follow in June 2010.
[
]
The transmission system has a transmission capacity of 5,000 MW and a rated DC current of 3,125 A. It has a total length of .
[
] It transmits electricity from the hydropower plants in the Yunnan to the Guangdong, including cities of Guangzhou and Shenzhen.
[
Yunnan–Guangdong HVDC shares the grounding electrode together with HVDC Guizhou - Guangdong II at Linwu ( coordinates:
23°44′48″ N 113°17′09″E ).
]
See also
* Southern Hami–Zhengzhou UHVDC
The Southern Hami–Zhengzhou UHVDC is an ultra high-voltage direct current power transmission line from the north-west to central China.
Background
It is the first ultra high-voltage project implemented by the Northwest China Grid Company, a ...
References
{{DEFAULTSORT:Yunnan-Guangdong HVDC
Energy infrastructure completed in 2010
Electric power infrastructure in China
HVDC transmission lines
2010 establishments in China