"110 kV one and two mothers and all outgoing lines, 10 kV all outgoing lines and 9012 switches are transferred to cold standby." At 21:59 on November 10, with the issuance of the last power transmission order from the Baotou Power Supply Bureau dispatching office, 220 thousand The Fudongliang substation was successfully launched, and the bureau has taken another solid step in helping Baotou City's photovoltaic "leader" project and promoting local economic development.
Fulfilling the responsibility on the shoulders and building the bridge of heart
With decades of mining in Shiguai mining area, the geological environment has formed a subsidence area, which cannot be reproduced and utilized. In response to the national call, Baotou City has launched the photovoltaic "leader" project, using idle and abandoned land in subsidence areas of mining areas to develop clean energy, expand the space for industrial development, and promote the economic development of Baotou City. The photovoltaic industry is expected to generate 800 million kilowatt-hours of electricity each year. In order to integrate the load of photovoltaic projects into the main network, the municipal government convened the bureau, the Municipal Development and Reform Commission, Shiguai District Committee and other departments and photovoltaic enterprises in the industrial park to negotiate and communicate many times to jointly study solutions.
The people have their voices, and I shall respond. The bureau takes the initiative to undertake social responsibilities, in line with the principle of actively serving local economic development, promoting energy structure improvement and clean energy development, actively contacting relevant government departments, and fully supporting the smooth implementation of Baotou's photovoltaic "top runner" project. Through research and site survey, it is determined to build a new 220kV Dongliang substation in Shiguai Industrial Park. In May 2018, the construction of Dongliang substation was officially launched. The total investment of the project is 194 million yuan. The substation covers an area of 5,354 square meters. Two new 240MVA main transformers are built, and the total line length is 18 kilometers.
Overcome hardships without fear
The Dongliang substation site in Shiguai District is surrounded by mountains, with complex geological structure and yellow soil. The harsh geographical environment and climatic conditions have become the biggest difficulties restricting the construction of the project. In order to enable the project to be completed and put into operation as soon as possible, the bureau's planning department, production department, safety supervision department, engineering department and other departments coordinate, cooperate and actively communicate to ensure the quality of the preliminary work of the project. After synthesizing various factors, it is decided to build an indoor substation, which has the advantages of small footprint, high operational reliability, long maintenance cycle, and no influence from external environmental conditions.
Since there is only one 500 kV Baobei substation around the Dongliang 220kV substation, and the 500kV Baobei substation has no 220kV outlet interval, nor does it have the conditions for expansion, it cannot meet the needs of the Dongliang substation access system. To this end, the main leaders of the bureau have actively communicated with the municipal government and the enterprise Yaxin Longshun for many times, and planned to connect the 220 kV line break of Baolong I and II to Dongliang substation. Liang substation obtains a stable power supply point, which enables Yaxin Longshun to be directly powered by Dongliang substation, shortens the power supply radius, improves reliability, reduces the cost of electricity consumption, and also satisfies the local consumption of new energy and achieves mutual benefit. win. In order to ensure the security load of Yaxin Longshun during the construction period, the bureau temporarily erected 2 10 kV power lines to supply power from the 110 kV stone garden, and started the super power protection mode, and arranged an 800 kVA generator car to ensure Enterprise blast furnace emergency power supply.
If there are no conditions, create conditions. When encountering a steep hillside, vehicles will open the road urgently, and the inaccessible section will be paved by the construction personnel. With the concerted efforts of everyone, the conveying channel will go straight to the top of the mountain, ensuring the timely entry of equipment and materials. With perseverance, gold and stone can be carved, and the moat becomes a gateway. After careful planning by all the staff and united will, the "white plus black" and "five plus two" attack were on the construction site. In only one and a half years, the Dongliang substation rose from the ground, and the iron towers were connected across the mountains, forming a beautiful line. landscape.
Against the wind and snow, work together to ensure power delivery
On November 8, a sudden heavy snow swept across the Shiguai Mountains, making the mountain road muddy and difficult to navigate, and construction vehicles slipping up the mountain, making it difficult to start power transmission. "If the vehicle can't drive in, then walk!" Climbing the snowy mountain and crossing the ditch, the construction personnel once again inspected the line and eliminated the shortage, and the substation operation and maintenance personnel checked the equipment to ensure the smooth start of the ceremony.
At about 15:00 on November 10th, with the on-site kick-off meeting of the 220 kV Dongliang Substation, the start-up of the Dongliang Substation officially kicked off. The leaders of the bureau guided the inspection on site, and the heads and technicians of the engineering department, production department, safety supervision department, repair and test department, large user management department, measurement, dispatch, information communication, substation and other departments all cooperated with the start-up work on site. After the on-site staff nervously checked and accepted the equipment, handed over the data, checked the protection value, the operation ticket execution, and the switch-off operation, the Dongliang substation successfully started power transmission at 21:59.
Xiongguan Mandao is really like iron, and now it's more and more from the beginning. The successful start-up of Dongliang Substation not only meets the grid-connection needs of photovoltaic enterprises, but also increases the distribution of 220 kV substations in the north of Baotou City, optimizes the 110 kV grid structure in Shiguai District, improves the power supply capacity and reliability of this area, and meets the needs of Shiguai. Electricity demand for economic and social development in the district. It is understood that the photovoltaic leader project in Shiguai District is the largest and fastest-constructed project in Baotou. The smooth operation of the photovoltaic project will also bring 125 million yuan of poverty alleviation funds to Shiguai.
