Haizishan photovoltaic delivery project. Photo by Hu Jiafang.
Carry out live pole operation. Photo by Zhang Tao.
Install analog wires to get first-hand data for ice melting. Photo by Kan Yongzhi.
Inspect tools before overhaul work. Photo by Ruan Songping.
Carry out inspections on the safety of electricity use. Photo by Pu Zhao.
Since the beginning of this year, the Yunnan Qujing Power Supply Bureau of China Southern Power Grid has resolutely shouldered the major political responsibility of ensuring power supply, and the Party Committee of the Bureau has united and led the majority of cadres and employees to closely cooperate with multiple elements such as projects, operation and maintenance, systems, services, emergency response, and security around the core of the power grid, so as to fully protect the lights of thousands of homes, hand over the "warm" answer sheet to the people, and help the high-quality economic and social development of Qujing City.
Strengthen the grid to do a good job in the outstanding problems of the distribution network.
In August, the 110 thousand volt stone rock power transmission and transformation project was successfully put into operation. It meets the power demand of 9 pairs of coal mines, plays a vital role in the transformation of coal mines with dual power supply in the main coal mine producing area of Fuyuan County, and effectively improves the power capacity of Fuyuan old plant and Shibalianshan area.
In September, the 110 thousand volt rocky power transmission and transformation project was put into operation. The project greatly optimizes the 35 kV and 10 kV power grid structures in the northeast area of Xuanwei City, and further meets the power supply needs of Xuanwei City's load growth and coal dual power supply.
In November, the 220 thousand volt Zhongzhai power transmission and transformation project was put into operation. It has become an important power hub in Shizong and Luoping areas, further strengthening the local power grid structure and improving the reliability of power supply.
In December, the large-wave project undertaken by Qujing Power Supply Bureau will usher in the peak of production: 500 thousand volt Longhai substation expansion project, 220 thousand volt Pushan power transmission and transformation project, 220 thousand volt Tongle substation expansion project, 35 thousand volt Baimatian power transmission and transformation project will be put into operation one after another.
Since the 14th Five-Year Plan, Qujing Power Supply Bureau has overcome difficulties, and will be connected to the new energy grid, coal dual power supply transformation, and the three-year battle to solve outstanding problems in the distribution network and effectively serve the economic and social development and ensure the people's livelihood Electricity is closely combined, in the past three years, the scale of investment in Qujing power grid has increased sharply, and only infrastructure investment has been arranged 33100 million yuan.
In the first half of this year, the 35,000-volt Wumeng power transmission and transformation project was completed and put into operation, and Liu Rui, director of the Huize Power Supply Bureau, was one of the happiest people. The vehicle power supply has a large jurisdiction, and is responsible for the operation and maintenance of 12 10 thousand volt lines and 526 stations with a total length of nearly 600 kilometersHigh-quality service work for 80,000 users. Among the 12 lines, the Liyuan line, the paper factory line, and the Zhongzhai line are very prone to problems due to their long lines and wide power supply range, and they are like 3 naughty children, which makes the 36 employees of the firm heartbroken.
After the project was put into operation, the problems that plagued the local people and the employees of the power supply station were solved one by one, and various indicators such as power supply reliability rate and voltage qualification rate were greatly improved. "With the support of the grid, I am confident that I can do a better job in the power supply service of the roundabout. Liu Rui said.
Supplemented by melting and de-icing, efforts are made to improve the anti-icing capacity of the power grid.
Qujing Power Supply Bureau focuses on improving the anti-icing ability by arranging the reinforcement of the main network equipment, the optimization of the distribution of the ice melting equipment, and the installation and production of the ice monitoring equipment according to the principle of strengthening the grid and de-icing as the supplement.
Qujing Power Supply Bureau has set up an anti-icing and anti-icing leading group headed by the general manager to study and deploy major issues of anti-icing and anti-icing, and is responsible for the organization, command and coordination of anti-icing and anti-icing work during the emergency response. Relying on various professional management departments, six professional working groups, including power grid safety working group, equipment safety working group, safety and emergency working group, power supply guarantee and service working group, have been established to improve the collaborative work efficiency of power grid system operation and planning, construction, operation, marketing, materials and other professional departments.
In terms of emergency response teams, Qujing Power Supply Bureau has set up 29 internal and external emergency response teams of 2,235 people, which are on standby 24 hours a day in case of emergencies.
In terms of emergency supplies, Qujing Power Supply Bureau has reserved common materials such as transformers, cables, poles, medium and low voltage wires, etc., to ensure that emergency supplies can be quickly delivered to the anti-icing repair site in the first time. In order to ensure that the emergency equipment can be obtained and topped up under the emergency state, it also focuses on the supplementary purchase of 10,000-volt emergency power generation vehicles, emergency charging cabins, and self-loading and unloading generators. Up to now, the bureau has equipped a total of 543 anti-icing emergency equipment such as emergency power generation vehicles, emergency generators, large-scale disaster survey drones, and heat source de-icing devices.
Winter is coming, and cold air activities are frequent. Combined with this year's ice area distribution map, historical ice disasters and other conditions, Qujing Power Supply Bureau has sorted the severity of icing on the lines and substations under its jurisdiction, and has completed the division of heavy ice areas in 227 ice-prone lines, the setting of 2297 artificial observation freezing points and the revision of the "one line and one policy" for ice melting, and eliminated the hidden dangers of transmission line channels in 218 heavy ice areas and 985 hidden dangers in the icing section of the distribution network.
Focus on the implementation of 500 thousand volt copper Kunjia line, 110 thousand volt Geng Daxin line and other 17 line body reinforcement and 500 thousand volt Qujing substation, 220 thousand volt Gengtun substation and other 7 substations a total of 10 groups of ice melting isolation switch installation. In view of the insufficient ability of the distribution network to resist natural disasters, we insisted on precise investment and key transformation, focusing on the reinforcement and transformation of 23 high-fault lines in heavy ice areas, such as 10,000 volt lime kiln line, 10,000 volt Xiahe line, 10,000 volt Jianwen line, and 10,000 volt Huoga line.
Up to now, 44 of the 52 anti-icing and anti-icing projects with an annual investment of about 90.36 million yuan have been completed by Qujing Power Supply Bureau, and the remaining projects will be completed by the end of December. At present, 7 sets of ice melting devices, 230 sets of ice melting isolation switches, and 328 sets of ice melting monitoring devices configured by the bureau have completed pre-test maintenance and elimination work, which can carry out DC ice melting for 227 transmission lines of 110 kV and above, and 10 ground lines of 220 kV and above.
Zero-distance service to ensure a "bright" Spring Festival.
In order to fully ensure the safety and reliability of electricity during the Spring Festival and cold wave in 2024 and effectively protect the electricity consumption of people's livelihood, in accordance with the people's livelihood electricity guarantee plan of Yunnan Power Grid Corporation during the Spring Festival and cold wave in 2024, Qujing Power Supply Bureau has carried out an analysis of the load and power supply capacity during the Spring Festival and cold wave in 2024 based on the historical load data of the Spring Festival over the years, the implementation progress of infrastructure production projects, extreme weather, and the advance mapping of returnees. load, output the list of control measures for heavy overload stations during the Spring Festival and cold wave in 2024 for key control.
Densely woven power supply service grid. At present, Qujing Power Supply Bureau has set up 908 power supply service grids, with 1,216 grid managers, covering all village committees in 91 townships and 46 streets in Qujing. 1,423 service WeChat groups were established, and 2.24 million **service** contact cards were posted. In addition, through the circle of friends of the person in charge of the administrative village, the WeChat group publicity of the account manager, and the carousel of the village loudspeaker, etc., multi-channel, multi-way, and high-frequency publicity of safety and scientific electricity knowledge and power supply service acceptance channels to users, so as to facilitate users to reflect the electricity business problems nearby, conveniently, and familiarly, and at the same time, the power supply station can also quickly carry out service response.
In order to do a good job in the service of user appeals this winter and next spring, Qujing Power Supply Bureau has set up 9 general managers with 9 county (district) power supply bureaus on the basis of this year, and this year selected 100 elite soldiers who are familiar with marketing business in the above-mentioned units, and will cooperate with Yunnan Electric Power Customer Service Center to carry out the diversion work in the case of 95598 traffic emergencies and quickly accept user appeals.
Not long ago, Qujing Power Supply Bureau has organized 9 county (district) power supply bureaus to vigorously carry out electricity inspections, focus on the rectification of potential safety hazards of power supply equipment and distribution lines of chemical and coal mining enterprises, form a list of electricity inspection and rectification, and actively report to relevant departments to jointly supervise and govern. In terms of emergency service materials, all units have allocated equipment such as "electric small two" and emergency generators in some village committees in advance, and have taken effective measures to fight the active battle of power protection and help the people stay warm in winter. (Ruan Songping).