On April 15, the construction of the Barkol converter station of the Hami-Chongqing ±800 kV UHV DC transmission project (hereinafter referred to as the "Xinjiang Power to Chongqing" project) ushered in an important node: the last section of the main beam of the 750 kV GIS room steel structure factory building The hoisting construction is completed, marking the topping out of the station's first building. The GIS room steel structure workshop is one of the core buildings of the converter station. It will be equipped with high-precision electrical equipment such as GIS combination appliances, as well as key equipment such as switch cabinets, isolation switches, lightning arresters, vacuum circuit breakers, and drop-out fuses. Collect, distribute and transmit electrical energy. According to the requirements, the cleanliness in the factory will reach million-level standards after it is put into use.

    "We officially resumed work on March 1. Currently, there are 1,249 construction workers in the station, and we have entered the peak stage of civil construction." Xu Jiayang, deputy project owner of the Barkol ±800 kV converter station project of the UHV Construction Branch of State Grid Co., Ltd. According to the construction plan, the attachment installation and equipment foundation construction of the 750 kV GIS room will be completed by the end of June, and the capping of the main control building and comprehensive building will be completed; in July, the DC field area civil engineering will be delivered and the equipment installation stage will be entered. Including the installation of transformers; the installation of 750 kV GIS indoor equipment will begin in September; the installation of low-end converter transformers and valve hall equipment will begin in November. "In June 2025, the Barkol converter station will be ready for power transmission, and it will be completed and put into use in December 2025."

    The converter station is located in a Gobi desert area in the Santanghu mining area of Barkol Kazakh Autonomous County. On April 16, the reporter saw at the construction site of the converter station that various construction machinery shuttled back and forth in the converter area, AC filter field, AC field and other areas, creating a busy scene; workers' living camps, owners and supervision units were working The campsite and the construction unit's office camp are all constructed of wooden houses, which are neat and uniform. The camp area is clean and tidy inside and outside, making it a beautiful scenery on the Gobi desert.

    "This area is a windy area, and the biggest difficulty encountered during construction is strong winds. If there is a strong wind above level 6, all our high-altitude operations will stop. This will still have a certain impact on the progress." Xu Jiayang said, in order to ensure the orderly construction To advance, the owner unit organized the construction unit to dispatch additional workers on site, and arranged collaborative work on multiple working surfaces in an orderly manner to offset the impact of construction efficiency reduction caused by windy weather. Especially before high-altitude hoisting operations, safety briefings are conducted based on the "standing shift meeting" every morning, the key and difficult points of on-site control are sorted out, and the division of personnel responsibilities is refined. During the hoisting process, the "group linkage" mechanism was adopted to work together, which greatly improved the quality and efficiency of the work. Under windless or light wind conditions, there are four working surfaces on site for hoisting operations at the same time, and the safety supervision team keeps an eye on on-site safety to ensure safe, orderly and efficient operations. At present, the progress of various projects is generally in line with the expected plan requirements.

    The "Xinjiang Electricity to Chongqing" project is one of my country's first batch of power transmission projects for the large-scale wind power and photovoltaic base in Shagehuang, with a total investment of 28.6 billion yuan. The project starts from Barkol Converter Station and ends at Yubei Converter Station in Yubei District, Chongqing. It passes through Xinjiang, Gansu, Shaanxi, Sichuan and Chongqing. The total length of the DC transmission line is 2,290 kilometers. After it is completed and put into operation, it can More than 36 billion kilowatt-hours of electricity were delivered to Chongqing, of which clean energy accounted for more than 50%. By then, Xinjiang will become the largest new energy power transmission base in the country, making new contributions to ensuring the national energy supply.