Murraylink

from Wikipedia, the free encyclopedia

The Murraylink is an underground, bipolar, high-voltage direct current line in Australia that connects the small town of Berri in the state of South Australia with Red Cliffs in the state of Victoria . With a length of 176 kilometers (or 180 kilometers), the Murraylink - apart from HVDC submarine cables - is currently the longest underground HVDC line in the world.

Murraylink (Australia)
Berri
Berri
Red Cliffs
Red Cliffs
Location of the endpoints of the HVDC Murraylink

The line was built by ABB on behalf of the operating company Murraylink Transmission Company Pty Ltd (MTC) and went into operation in 2002. The two cables were generally laid along existing roads at a depth of 1.2 meters, which shortened construction time. The service life is expected to be 40 years. The total cost was A $ 180 million .

The Murraylink was built to carry electricity from the state of Victoria to the state of South Australia, as the Riverland region there suffered from a power shortage. However, it is also possible to conduct electricity in the opposite direction if this should become necessary.

Technical specifications

The HVDC consists of two cables with a maximum transmission capacity of 220  megawatts ; the current is 739  amps and the voltage is ± 150  kilovolts . In Berri there is a connection to a 132-kilovolt line, in Red Cliffs to a 220-kilovolt line. The VSC converter technology (voltage sourced converter) is used (ABB calls this HVDC Light).

owner

At the time of establishment, MTC was each 50% owned by SNC Lavalin (through the subsidiary SNC-Lavalin Investment Australia Pty Ltd ) and Hydro-Québec (through the subsidiary Murraylink HQI Australia Pty Limited ). On March 30, 2006, Australian Pipeline Trust acquired MTC for A $ 153 million.

As of 2012, MTC is 100% owned by Energy Infrastructure Investments Pty Ltd (EII). EII, in turn, is owned by a consortium made up of Dalmeny Gas & Power Holdings BV (24.95%), Midstream Investment First BV (24.95%), Osaka Gas Energy Europe BV (30.20%) and Australian Pipeline Limited (19.90%) exists.

Individual evidence

  1. ↑ a b c Murraylink HVDC Light Interconnection. (PDF 247 KB pp. 1–4) ABB, accessed on September 14, 2014 (English).
  2. ↑ a b c Murraylink The world's longest underground power transmission system. ABB, accessed on September 14, 2014 (English).
  3. ^ A b Acquisition of Murraylink Transmission Company. (PDF 731 KB p. 16) Australian Pipeline Trust, March 30, 2006, accessed September 15, 2014 .
  4. ^ A b Network Interconnection: Murraylink: the underground connection. Power Engineering International, May 1, 2001, accessed September 14, 2014 .
  5. ↑ SNC-LAVALIN PARTNERS WITH HYDRO-QUEBEC IN AN INTERCONNECTION PROJECT IN AUSTRALIA. SNC-Lavalin, March 13, 2001, accessed September 15, 2014 .
  6. ↑ ANNUAL REPORT CONCERNING FOREIGN UTILITY COMPANIES. (txt) In: Securities and Exchange Commission. January 30, 2003, accessed September 17, 2014 .
  7. ^ APA acquires Murraylink. (PDF 175 KB) Australian Pipeline Trust, March 30, 2006, accessed September 15, 2014 .
  8. ^ Murraylink Revenue Proposal. (PDF 823 KB p. 13) (No longer available online.) Murraylink Transmission Company Pty Ltd, May 2012, archived from the original on March 29, 2014 ; accessed on September 14, 2014 (English).