Yunnan–Guangdong HVDC

The Yunnan–Guangdong HVDC is a high-voltage direct current transmission system connecting Chuxiong in the Yunnan to Suidong, Zengcheng in Guangdong, China. It is the first HVDC link in the world operating at a transmission voltage of 800 kV.[1] The transmission line is operated by China Southern Power Grid. In 2007, the order to supply the system was awarded to Siemens Energy.[2] The first pole was put into operation in December 2009 with the second pole to follow in June 2010.[3]

Yunnan–Guangdong HVDC
Location
Country	China
Province	Yunnan, Guangdong
General direction	west-east
From	Chuxiong
To	Suidong, Zengcheng
Ownership information
Owner	China Southern Power Grid
Construction information
Manufacturer of substations	Siemens
Construction started	2007
Commissioned	2010
Technical information
Type	overhead transmission line
Type of current	Ultra HVDC
Total length	1,418 km (881 mi)
Power rating	5,000
AC voltage	500 kV
DC voltage	800 kV
No. of poles	2

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 1,418 kilometres (881 mi).[4] It transmits electricity from the hydropower plants in the Yunnan to the Guangdong, including cities of Guangzhou and Shenzhen.[1]

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

References

1. "World's first 800 kV HVDC link goes into operation in China". Power Engineering International. PennWell Corporation. 2009-12-30. Retrieved 2011-10-05.
2. Siemens (2007-06-11). "China to Construct High-Voltage Transmission System Between Yunnan, Guangdong". Transmission & Distribution World. Penton Media, Inc. Retrieved 2010-01-05.
3. "First 800-kV HVDC Link in China Now Fully Operational". Siemens AG. Transmission & Distribution World. June 2009. Retrieved 2010-09-02.
4. Zhang, Donghui; Haeusler, Marcus; Rao, Hong; Shang, Chun; Shang, Tao. "Converter Station Design of the ±800 kV UHVDC Project Yunnan-Guangdong" (PDF). Siemens. Retrieved 2010-01-05.