In the early morning of May 13, the four new traction substations of Hangzhou-Wenzhou high-speed railway simultaneously sent power to the power supply arms on both sides. The whole line marks the basic completion of the electrification construction of the Hangzhou-Wenzhou high-speed railway, and provides a power guarantee for the next step of thermal slip test and EMU commissioning.
The Hangzhou-Wenzhou high-speed railway project is divided into two phases of construction, the first phase is the Yiwu to Wenzhou section, which is led by Parkson and Hangzhou-Wenzhou Co., Ltd., and the second phase is the Hangzhou-Yiwu section, which is led by Zhejiang Communications Group.
The catenary is the power aorta of the high-speed railway, which undertakes the important task of providing kinetic energy support for the train. It is understood that the power transmission adopts the method of sub-section power transmission, Tonglu East Station to Pujiang County Hewu Sub-district section at 2 a.m. on the 13th, and the rest of the sections are completed before 8 a.m. on the 13th.
The catenary power transmission scope covers 4 traction substations, 5 subdivisions, 9 AT (autotransformer) stations, 1 opening and closing station and zoning and all the main lines, contact lines, EMUs and dynamic wiring, a total of 740 kilometers of catenary, the whole line power transmission process is smooth, the insulation state is good, there is no abnormality after the catenary is electrified, the transformer equipment is energized normally, and the technical parameters meet the design requirements and construction specifications.
"Hot sliding and EMU commissioning can be carried out after the catenary is electric, marking significant progress in the preparation for dynamic commissioning and train operation, and laying a solid foundation for the official operation of the subsequent Hangzhou-Wenzhou high-speed railway." Zhang Junqing, deputy commander of the Hangzhou-Wenzhou Phase II Construction Headquarters of Zhejiang Communications Group, said.
It is reported that in order to ensure the efficient and safe completion of the catenary power transmission work, the construction units and participating units of the project jointly set up a working group to ensure the opening of the power transmission plan, regularly carry out safety and technical disclosure, and hold a work coordination meeting with the power supply units in a timely manner to clarify the pre-work before power transmission, optimize the catenary power transmission process, improve power transmission efficiency and reduce energy loss. At the same time, in order to ensure the safety before power transmission, the fourth power project of the project takes the opportunity of carrying out meritorious service competitions, and is equipped with full-time safety officers and quality officers to control on-site safety and quality problems, and configures "Qing'an Gang" and "group security personnel" to assist in management, and regularly and irregularly carry out safety hazard investigation activities, hold safety and quality education and training courses, and carry out safety management from multiple angles and levels.
Hangzhou-Wenzhou high-speed railway line north from Hangzhou Tonglu East Station, south through Jinhua City, Taizhou City, to Wenzhou City, the introduction of the reconstructed Wenzhou South Station, the line is 260 kilometers long, the design speed of 350 kilometers per hour, the whole line set up Tonglu East, Pujiang, Yiwu, Hengdian, Pan'an, Xianju, Nanxijiang, Wenzhou North Station, Wenzhou South and other 9 stations.
The Hangzhou-Wenzhou high-speed railway is an important part of the Yangtze River Delta high-speed railway network, and it is also the fastest passage in Zhejiang Province to achieve the three major metropolitan areas of Hangzhou, Jinhua-Yiwu and Wenzhou in one hour. After the completion and operation of this railway, the rich tourism resources of Hangzhou, Jinhua, Taizhou, Wenzhou and other places will be connected into a line, and Xianju, Pan'an, Dongyang, Pujiang and other places along the line will officially enter the era of high-speed rail, which is of great significance for improving the layout of the regional road network and promoting the linkage development of the Yangtze River Delta urban agglomeration.
Editor|Zhang Yajing
Correspondents: Gao Tianfeng, Zhang Zhiyang, Zhang Xiaoqing
Process Editor|Chen Shang
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