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西电集团

Three Gorges — Changzhou DC Transmission Project

With support from national policies and former State Power Corporation, China XD Group has introduced design and manufacture technologies of thyristor valve, converter transformer and smoothing reactor from Sweden ABB Corporation in Three Gorges  — Changzhou DC Transmission Project(±500kv,3000a,3000mw); taken part in technology introduction of system research and system design of DC transmission project in Three Gorges  — Changzhou ±500kv DC Transmission Project; and manufactured two converter transformers, one smoothing reactor, 116 thyristor components of the four lockshield valves together with ABB Corporation.
 
China XD Group has made many technological upgrading to manufacturers of power transmission and transforming equipment by combining with Three Gorges-Changzhou DC Transmission Project and other big hydroelectric engineering to promote production capacity and technological level, to increase and perfect testing equipment; total investment on it was up to RMB 187.82 million Yuan. XD Transformer Co., Ltd. invested RMB 28 million Yuan on adaptation of technology for manufacturing converter transformer and smoothing reactor in the working procedure of shearing, winding and testing after the Three Gorges Project has been obtained. XPR also invested near RMB 3 million Yuan on technological upgrading of production environment and condition for component assembly to meet the equipment of assembly of thyristor components. Through these upgrading, they meet the preliminary demand for production capacity and technological level of Three Gorges-Changzhou DC Transmission Project and later Three Gorges-Guangdong and Guizhou-Guangdong DC Transmission Project.
 
The equipments of converter station in Three Gorges – Changzhou ±500kv DC Transmission Project are products that represent the current international most advanced level. Relevant factories of China XD Group meticulously organized and disciplined themselves strictly to make the cooperative products qualified. The cooperative manufactured two converter transformers and one smoothing reactor and 116 components of converter valve have been put into operation, and they have been operated well.
 
The equipments of converter station in Three Gorges – Changzhou ±500kv DC Transmission Project are products that represent the current international most advanced level. Relevant factories of China XD Group meticulously organized and disciplined themselves strictly to make the cooperative products qualified. The cooperative manufactured two converter transformers and one smoothing reactor and 116 components of converter valve have been put into operation, and they have been operating well.


 


 

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