The "Xinjiang Electricity Enters Chongqing" Ultra High Voltage Yubei Converter Station has resumed work comprehensively

On February 10th, at the Yubei converter station of the "14th Five Year Plan" key project ± 800 kV Hami Chongqing ultra-high voltage direct current transmission project (hereinafter referred to as the "Xinjiang Power into Chongqing" project), more than 300 operators were distributed at various work points, carrying out the installation and secondary debugging of AC field GIS sleeves, DC field PLC reactors and other equipment in an orderly manner. The on-site construction was in full swing. Since February 4th, the owners, construction and supervision personnel of Yubei Converter Station have returned to work one after another, and have fully resumed work after completing various preparatory work.

On the morning of the 10th, at the fastening site of the DC field pillar insulators at Yubei Converter Station, five articulated cranes stood tall, with ten operators wearing safety helmets, gloves, and waist belts. They stood in the pockets of the articulated cranes and used torque wrenches to tighten the connecting bolts between the insulators and the base one by one. On the ground, five dedicated guardians widened their eyes and conscientiously carried out on-site safety supervision.

At the same time, at the primary current test site of the 500 kV current transformer in the AC filter field, three test personnel quickly completed the wiring of the test instrument and current transformer, started the test equipment to input relevant parameters, and began the current test.

It is reported that starting from February 4th, the management and construction personnel of the Yubei Converter Station project have gradually arrived at their posts, following the standardized "seven step method" for resuming work in infrastructure projects, organizing construction and supervision units to hold resumption meetings, watching safety warning education videos with alarm bells ringing, conducting typical violations and accident case studies, making preparations, and creating safe conditions for resumption of work.

Li Ziruo, the head of the project department of the Yubei ± 800 kV converter station owner of State Grid Chongqing Electric Power Company, introduced that 386 personnel have been on duty for the construction of the Yubei converter station, and all work is being carried out in an orderly manner. At present, the civil construction of the project is 94% completed, and the electrical construction is 55% completed. It is expected that the AC system will have live conditions by April 10th, and the bipolar low-end operation will be achieved by June 15th.

The "Xinjiang Electricity into Chongqing" project will officially start construction in October 2023, with plans to be completed and put into operation within this year. By then, it will be able to deliver over 36 billion kilowatt hours of electricity to Chongqing annually, helping Chongqing form a new pattern of "one transmission, one transmission" ultra-high voltage transmission, constructing a diversified power mutual aid system of water, fire, wind, and light, enhancing the supply guarantee capacity of Chongqing's power grid, and providing strong momentum for the high-quality development of Chongqing's economy and society.