The self -developed system of CRRC's self -developed system "traction" the first dual -streaming city (suburban) railway trains nationwide to fill the domestic gap.

Qingdao Daily/Guanhai News August 10th. Recently, the country's first dual -streaming city (suburban) railway -Chongqing Jiangjiang jumping line was opened. This line train uses the dual -stream traction system independently developed by CRRC Qingdao Sifang Vehicle Research Institute Co., Ltd. (hereinafter referred to as "CRRC Sifang"). Related products have realized the full automatic switching of the train on the two power supply lines. The indicators and international leading products are achieved and running, and many results have filled the domestic gap.

The nation's first dual -streaming city (suburban) railway train uses the self -developed traction system of CRRC.

During the implementation of the Jiangjiu Line Project, the technical team of the traction of the CRRC Sifang broke through the foreign technology barriers, opened up the implementation path of the dual -stream traction system and its control technology at the application level, and overcome the technical problem of the transaction/DC full -automatic non -parking switching technology. Autonomously developed the first domestic set of official implementation of engineering applications and the world's leading dual -current fully automatic switching control system, so that the train is smooth and running safely between 25KV and DC 1.5kV power supply systems, while completing the multi -made fully automatic switching while completing the multi -system fully automatic switching It guarantees the vehicle to minimize the loss when the extreme operating conditions cause the switching failure, which provides solid technical support for the goal of achieving large passenger capacity, strong climbing ability, and good self -rescue ability. The dual -stream traction system effectively helps the Jiangjump line to truly realize the penetration operations of urban rail transit and municipal (suburban) railways. Fusion "played a certain demonstration role. (Qingdao Daily/Guanhai Journalist Liu Lanxing Correspondent Zhao Peng Liu Xiaojing)

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