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Yunnan–Guangdong HVDC

HVDC overhead power line in China

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 6, 2026
Entity authorityQ1563640 ↗
Source-derived summary

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. The transmission line is operated by China Southern Power Grid. 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 1,418 kilometres (881 mi). 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).

Editorial summary

This brief starts where responsible research should: with the source description of “Yunnan–Guangdong HVDC” as hVDC overhead power line in China. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—2007, 2009, 2010—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Yunnan, Guangdong and HVDC can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as hVDC overhead power line in China. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 6, 2026. The linked authority identifier is Q1563640. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2007, 2009 and 2010.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

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Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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Source & attribution

This entry incorporates text from “Yunnan–Guangdong HVDC” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.