On June 23, the construction of the 110 kV Kangqiang substation project was in full swing in Chengdu High-tech West District. After the project is completed, it will further guarantee the power consumption of Chengdu in summer.
It is understood that since the summer of 2021, Chengdu has accelerated the construction of the power grid, and in January 2022, the “Rongyao Project” of Chengdu Power Grid will be fully launched for three years, and the power supply capacity of the power grid will be continuously improved year by year. 110 key projects have been transported, with an investment of over 10 billion yuan, the newly added substation capacity is 24.9 million kVA, the new transmission line length is 2080 kilometers, the power supply capacity of the Chengdu power grid has been increased to 21.5 million kilowatts, and the power grid has been upgraded to match Chengdu. Energy demand for the city's economic and social development.
Chengdu adds a 110 kV substation to vigorously improve power supply capacity
At 3 o'clock in the afternoon, the reporter came to the 110 kV Kangqiang Substation, which is one of the key projects of the "Rongyao Project". It is understood that in the first phase of Kangqiang Substation, 2 main transformers will be built, the new substation capacity will be 126,000 kVA, 2 new 110 kV outlet lines and 28 10 kV outlet lines will be built. It is planned to be put into operation in early July this year. Improve the power supply capacity of the Hi-tech West District and Pidu District, and play an important supporting role for the surrounding industrial and commercial power consumption represented by the IT manufacturing industry.
At the same time, in order to meet the growing demand for electricity, the State Grid Chengdu Power Supply has made great efforts to promote the new (expansion) construction projects of the power grid including the "Rongyao Project" to be put into operation on schedule. The expansion of the third main transformer of Fusansheng Substation, the new construction of power transmission and transformation projects such as 110kV High-tech Zone, Jiangxi River, and Wenjiang New City, as well as the 110kV Diligent, Wenwu, Pitong, Shiliba and other power transmission and transformation projects The expansion work has effectively improved the power supply capacity of the high-tech zone, Wenjiang, Pidu, Jianyang and other areas.
It is expected that the new construction of 500kV Xingmeng Substation and 220kV supporting projects, as well as the 110kV Gaoxin North-South Avenue (Kangqiang Substation) and Jinsha Power Transmission and Transformation Project will be completed before the peak electricity consumption in summer. Power supply pressure in Pidu District and Qingyang District.
A number of measures in parallel to ensure the power supply in Chengdu in summer
It is understood that temperature control is one of the keys to the safe and stable operation of the main transformer of the substation. In order to ensure that the load capacity of the main transformer of the substation can meet the power load growth this summer, the State Grid Chengdu Power Supply has completed a total of 30 high oil temperature main transformers with air cooling since last year. The system was reconstructed, and one temporary main transformer was added in Jinjiang and Pujiang areas where the load is expected to be heavier. If there is continuous high temperature weather, fog cannons may be added as an auxiliary cooling method to ensure the stable operation of the main transformer.
In order to meet the electricity demand of the majority of power users in summer, overhaul and maintenance, preventive tests, and live testing have been carried out on the power grid operating equipment from March to June, so that the equipment does not "run with diseases" during high temperature.
In addition, the transformation of the distribution network grid (dual power supply in residential areas) has been carried out continuously. At present, 168 groups of interconnected and mutual supply lines have been built, covering a power supply area of 91 square kilometers, benefiting more than 1,200 communities. During the period of high temperature load, the inspection of power distribution equipment will also be strengthened, and the operating conditions of the equipment will be continuously paid attention to by means of infrared temperature measurement, and the 24-hour duty system will be strictly implemented to ensure that after various faults occur, emergency repairs will be put into operation as soon as possible, combined with live work and other means Substantially reduce the scope of power outages.
Actively serve enterprises in three aspects to help social and economic development
It is understood that 49 provincial-level industrial functional zones, 19 municipal-level leading enterprises, 179 county-level leading enterprises, 253 key enterprises, 17 new users in the park and 17 key projects have been launched within the scope of Chengdu’s power supply. On-site visits, explaining the time-of-use (peak) electricity price and the policy of active staggering and avoiding peaks to be issued by the Provincial Development and Reform Commission and the Provincial Department of Economy and Information Technology, and demonstrating the economic case of peak shifting and valley-filling electricity consumption on the spot, and serving enterprises to do a good job of staggering and avoiding peak production in advance plan.
According to Xiao Xin, deputy general manager of State Grid Chengdu Power Supply Company, the company focuses on three aspects to help social and economic development from reducing energy costs for enterprises, optimizing the business environment, and comprehensively promoting online power services.
Including electric energy replacement, electric vehicle charging and swapping facilities, and customers in the provincial and above parks, strictly implement the industry expansion supporting extension investment to the red line of the project. For low-voltage small and micro enterprises that do not involve road occupation or road digging, the one-day business expansion service of "application in the morning and receiving electricity in the afternoon" is provided. Provide "minimum electricity office" services for small and medium-sized enterprises below 1250 kVA. Provide “7×24” online services for users to add electricity, pay electricity bills, check bills, and report for fault repairs through online service channels such as “Online State Grid”, “Chengdu Power Supply”, and “Ronge Electricity”; online Applications for new installations, capacity additions and changes are strictly accepted within 2 hours. Promote digital service scenarios such as "on-site help" to realize online resolution of offline appeals, intelligent resolution of online appeals, and local resolution of on-site appeals.
