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ABB to supply $440 million power link in China 
 
ABB為中國提供價值4億4千萬美元的電力傳輸系統

Zurich, Switzerland, Dec. 18, 2007 – ABB has won orders worth $440 million from the State Grid Corporation of China and other partners to provide new ultrahigh-voltage technology for the world’s longest power transmission link.

瑞士蘇黎世12月18日消息——ABB從中國國家電網集團和其他合作伙伴手上贏得了價值4億4千萬美元的訂單，為全球最長的電力傳輸網提供新的超高壓技術。

The power superhighway running 2,000 kilometers (1,240 miles) from western China to the highly industrialized coastal area in the east, will have a capacity of 6,400 megawatts (MW). That is enough to meet the needs of about 31 million people in China, based on average consumption per capita. The link from the Xiangjiaba hydropower plant to Shanghai is scheduled for completion in 2011.

該超高速電力傳輸線從中國的西部延伸到工業高度發達的東部沿海地區，全長2千公里（1240英里），容量將達6400兆瓦。根據人均平均消費量，這將可以足夠滿足中國大約3千1百萬人口的用電需求。這條從向家壩水電站到上海的電力線預計在2011年完工。

The ultrahigh-voltage direct current (UHVDC) link comprises two substations and a power transmission system using breakthrough technology to transmit electricity at ultrahigh voltage (800 kilovolts), which will minimize the amount of power lost in transmission.

該超高壓直流輸電(UHVDC)線包括兩個變電站以及一個采用了突破性超高壓（800千伏）電力傳輸技術的電力傳輸系統，這將減少傳輸過程中的電力損失。

Increasing the voltage level of electrical transmission creates considerable advantages for the environment, including lower electricity losses and the use of less land compared to traditional overhead lines. UHVDC is particularly suitable for vast countries like China, where the centers that need power are often located far from power sources.

跟傳統的高架線相比，增加電力傳輸的電壓水平可以為環境帶來很大的好處，包括更低的電力損失以及占用更少的土地。超高壓直流輸電技術特別適合類似中國這樣領土廣闊的國家，這些國家需要電力的中心區域一般離發電站都較遠。

This project represents a number of breakthroughs in electrical power transmission:

該項目在電力傳輸領域展現了許多突破點：

* The 6,400 MW power rating is more than double the most powerful rating in operation today

6400兆瓦的額定功率是是世界上現有最大額定功率的雙倍還多

* At 2,000 km, the transmission line will be the longest in the world

2000公里的傳輸線將成為世界上最長的電力傳輸線

* Transmission losses will be less than 7 percent, significantly less than the losses from conventional 500-kilovolt (kV) high-voltage direct current (HVDC) transmission schemes. The savings from using UHVDC compared with HVDC are equivalent to the annual power consumption of more than 900,000 people in China.

電力的傳輸損失將少于7%，遠遠低于傳統500千伏高壓直流(HVDC)傳輸計劃的損失量。對比高壓直流技術，使用超高壓直流技術節省的電量相當于中國超過90萬人口的年均用電量。

“Ultrahigh voltage transmission is a vital new technology for the efficient use of hydropower generated in remote areas,” said Peter Leupp, head of ABB’s Power Systems division. “ABB technology, which plays an essential role in this project, can support the economic development of some of the world’s most populous regions, while lowering environmental impact."

ABB電力系統部主管Peter Leupp表示：“超高壓傳輸對遠程地區所發水電的高效利用是一項重要的新技術。在這項工程中扮演著重要角色的ABB技術可以支持一些世界上人口最廣地區的經濟發展，同時降低對環境的不良影響。”

UHVDC transmission is a further development of HVDC, a technology pioneered by ABB more than 50 years ago. The new technology, using thyristor valves equipped with newly developed six-inch thyristors (power semiconductors) and an advanced control system, allows the biggest capacity and efficiency leap in 20 years. The increase became possible following advances in basic research in a number of fields, including the development of new materials for outdoor insulators and advanced control systems with extremely high calculation capacity.

超高壓直流傳輸技術是對ABB在50多年前首先開創的高壓直流傳輸技術的一個繼承發展。這項新技術使用配備新開發的6英寸晶閘管（功率半導體）和一個先進的控制系統的晶閘管閥，在20年實現最大容量和效率飛躍。伴隨著許多領域基礎研究所取得的進步，包括戶外絕緣器新材料和具有極高計算能力的先進控制系統的發展，使這一改進成為可能。

ABB 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 more than 110,000 people.

ABB是電力和自動化技術領域的全球領導廠商，致力于為工業和電力行業客戶提供解決方案，以幫助客戶提高生產效率，同時降低對環境的不良影響。ABB集團的業務遍布全球100多個國家，擁有大約111,000名雇員。

（本文由中華工控網翻譯，轉載請注明出處，更多中英對照資料請進異域來風http://world.gkong.com）