Contact
QR code for the current URL

Press release Box-ID: 360792

ABB Asea Brown Boveri Ltd Affolternstrasse 44 8050 Zurich, Switzerland http://www.abb.com
Contact Mr Wolfram Eberhardt +41 43 317 65 68
Company logo of ABB Asea Brown Boveri Ltd
ABB Asea Brown Boveri Ltd

ABB commissions world's longest and most powerful transmission link

The world's first ultrahigh-voltage power superhighway starts commercial operation in China

(PresseBox) ( Zurich, )
ABB, the leading power and automation technology group, has achieved another significant milestone with the commissioning of the Xiangjiaba-Shanghai project, the world's first UHVDC (ultrahighvoltage direct current) transmission link to go into commercial operation. ABB was the main technology supplier to State Grid Corporation of China (SGCC) and the project was completed in 30 months, one year ahead of schedule.

The ±800 kV Xiangjiaba-Shanghai UHVDC link has the capacity to transmit up to 7,200 megawatts (MW) of power from the Xiangjiaba hydropower plant in southwest China to Shanghai, the country's leading industrial and commercial center about 2,000 kilometers away. The new link is able to meet the electricity needs of about 24 million people, and sets a new benchmark in terms of voltage levels and transmission capacity, superseding the 600 kV (kilovolt) Itaipu transmission line in Brazil, which was also delivered by ABB.

"800 kV UHVDC will play an important role in providing China with access to remote renewable energy, a key focus area for us," says Zheng Baosen, Executive Vice President, SGCC. "We are extremely pleased with the support and cooperation of ABB and the local Chinese suppliers during the execution of this project which enabled its completion in record time."

The highcapacity power link comprises a single overhead line and occupies less space than the existing system. Moreover, transmission losses on the new line are under 7 percent, again, considerably less than the existing 500 kV system. The electricity saved is equivalent to the power needs of around one million people in China.

"The Xiangjiaba-Shanghai link sets a new standard in ultrahighvoltage power transmission and underlines ABB's global leadership in HVDC technology," said Peter Leupp, head of ABB's Power Systems division. "We congratulate State Grid Corporation of China on this remarkable achievement and acknowledge the excellent cooperation and support of all our local partners."

As part of the turnkey project, ABB was responsible for overall system design and supplied the main equipment. The scope of delivery included 28 high- and ultrahighvoltage converter transformers, ten of which were delivered from Sweden and the rest manufactured with ABB components and technology, in local partnership. Other key products delivered include thyristor valves, DC and AC (direct and alternating current) switchyard equipment and the newly developed DCC800 HVDC control system.

UHVDC transmission is a development of HVDC, pioneered by ABB more than 50 years ago. The new technology with an advanced control system represents the biggest capacity and efficiency leap in power transmission systems in more than two decades. It is particularly suitable for vast countries like China and India, where consumption centers are often located far from power sources, including renewables.

ABB (www.abb.com) is a leader in power and automation technologies that enable utility and industry customers to improve performance while lowering environmental impact. The ABB Group of companies operates in around 100 countries and employs about 117,000 people.
The publisher indicated in each case is solely responsible for the press releases above, the event or job offer displayed, and the image and sound material used (see company info when clicking on image/message title or company info right column). As a rule, the publisher is also the author of the press releases and the attached image, sound and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.
Important note:

Systematic data storage as well as the use of even parts of this database are only permitted with the written consent of unn | UNITED NEWS NETWORK GmbH.

unn | UNITED NEWS NETWORK GmbH 2002–2022, All rights reserved

The publisher indicated in each case is solely responsible for the press releases above, the event or job offer displayed, and the image and sound material used (see company info when clicking on image/message title or company info right column). As a rule, the publisher is also the author of the press releases and the attached image, sound and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.