UHV DC Transmission Demonstration Project Takes a Major Step towards Localization of Overall Equipments Manufacture

SGCC Signed Contracts with 9 Manufactures for Key Equipments Procurement of UHV DC Transmission Demonstration Project

On the afternoon of December 17, 2007, SGCC signed the Sichuan-Shanghai +/-800kV UHV DC Pilot Project Main Equipment Contract with a design institute and 8 equipment manufacturers respectively, indicating that UHV DC Transmission Demonstration Project's key equipment development and production has entered into the phase of overall implementation, which is of great significance to ensure the scheduled completion and operation of the Project and the improvement of localization level of Chinese electric equipments manufacturing.

As the matching Transmission Project of Xiangjiaba and Xiluodu Hydropower Station in Jinshajiang River Basin, Sichuan-Shanghai +/-800kV UHV DC Demonstration Project is of the highest voltage level, largest transmission capacity and longest transmission distance among all DC transmission projects worldwide.

According to the plan, the Project will be completed and put into operation in 2010. As a key channel for energy transmission of China, the Project undertakes the task of hydropower transmission of southwest China to eastern power load center.

It is reported that equipments such as 6-inch thyristor valve, 800kV large-capacity high-voltage converter transformer, 800kV 4kA smoothing reactor and bushing, etc. will be applied in the Project for the first time in the world.

A source of SGCC said, except for DC equipments and some high-end converter transformers, all other main equipments of the pilot project are supplied by domestic manufacturers. All key players in the fields of transformer, valve, control protection and the system design in China have been involved in equipment supply and technical services of the pilot project.

Zhang Guobao, Vice Chairman of the National Development and Reform Commission, said the completion of the development of major engineering equipments would promote China's localization progress of major equipments in the frontier area of and facilitate the grasp of core technologies with independent intellectual property right.

It is reported that the following companies have signed the Sichuan-Shanghai +/-800kV UHV DC Project Main Equipment Contract: China XD Group, XJ Group Corporation, TBEA Shenyang Transformer Group Co.,Ltd., Baoding Tianwei Baobian Electric Co., Ltd., Beijing Power Equipment Group, Nanjing Nari-Relays Electric Co., Ltd. and Beijing Wanglian HVDC Engineering Technology Co., Ltd.

Source: International Liaison Department

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