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- Q7937990 subject Q15254881.
- Q7937990 subject Q8399870.
- Q7937990 subject Q8411126.
- Q7937990 subject Q8416942.
- Q7937990 abstract "The Vizag back to back HVDC station, or Visakhapatnam back to back HVDC station, is a back to back HVDC connection between the eastern and southern regions in India, located close to the city of Visakhapatnam, and owned by Power Grid Corporation of India.It consists of two independent poles, each with a nominal power transmission rating of 500 MW, referred to as Vizag 1 and Vizag 2. Vizag 1 was built by Alstom between 1996 and 1999 and has nominal DC voltage and current ratings of 205 kV, 2475 A. Its design is very similar to that of the Chandrapur back to back HVDC converter station.Vizag 2 was built by ABB between 2002 and 2005 and has nominal DC voltage and current ratings of 176 kV, 2841 A.Both Vizag 1 and Vizag 2 use air-insulated, water-cooled thyristor valves.On 31 December 2013, the Northern, Eastern and Western grids were synchronised with the Southern regional grid, creating a single synchronous AC grid over the whole of India. As a result the converter station is no longer required for its original purpose of asynchronously linking the Eastern and Southern grids, although it can still be used as an embedded power flow device to help control power flow within the AC system. The stations could potentially be dismantled and moved to elsewhere to export/import power from other countries. Sometimes the excess power fed to the southern grid by this HVDC link is flowing back to Western region through the 765 KV AC lines between Southern grid and the Western grid which is not desired.".
- Q7937990 wikiPageExternalLink 59bff8013f29b39bc1257749004e8e48.aspx.
- Q7937990 wikiPageExternalLink grid.
- Q7937990 wikiPageExternalLink www.powergridindia.com.
- Q7937990 wikiPageWikiLink Q1159.
- Q7937990 wikiPageWikiLink Q15254881.
- Q7937990 wikiPageWikiLink Q200016.
- Q7937990 wikiPageWikiLink Q309084.
- Q7937990 wikiPageWikiLink Q3400886.
- Q7937990 wikiPageWikiLink Q370607.
- Q7937990 wikiPageWikiLink Q5071436.
- Q7937990 wikiPageWikiLink Q52825.
- Q7937990 wikiPageWikiLink Q5636212.
- Q7937990 wikiPageWikiLink Q668.
- Q7937990 wikiPageWikiLink Q8399870.
- Q7937990 wikiPageWikiLink Q8411126.
- Q7937990 wikiPageWikiLink Q8416942.
- Q7937990 point "17.6425 83.1325".
- Q7937990 type SpatialThing.
- Q7937990 comment "The Vizag back to back HVDC station, or Visakhapatnam back to back HVDC station, is a back to back HVDC connection between the eastern and southern regions in India, located close to the city of Visakhapatnam, and owned by Power Grid Corporation of India.It consists of two independent poles, each with a nominal power transmission rating of 500 MW, referred to as Vizag 1 and Vizag 2.".
- Q7937990 label "Vizag back to back HVDC converter station".
- Q7937990 lat "17.6425".
- Q7937990 long "83.1325".