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Wintop aids in the construction of smart substations for the Southern Power Grid.

  

Globally, we are facing energy transition, low-carbon transition, and digital transformation. Building a new type of power system is key to the interconnected transformation and is an important foundation for achieving energy economic efficiency as well as a critical means to ensure energy security and continuity. Substations, as the hub nodes of the power system, play an important role in the operation of the power grid, serving to convert, distribute, and control electrical energy. The electricity generated by power plants is stepped up at booster stations to transport at higher voltages, reducing transmission losses and allowing electricity to travel farther. Upon reaching urban areas, the voltage is reduced at substations to appropriate levels for distribution to businesses and households. The journey from power generation at plants to consumer usage must pass through substations; our urban life relies heavily on the support of substations. Substations mainly consist of the main control room, GIS room, 10 kV control room, and distribution room, among others.

 

 During the 14th Five-Year Plan period, Southern Power Grid Company aims to make the power grid more intelligent, safe, reliable, green, and efficient, further accelerating the digital transformation of the grid. This involves strengthening the construction of intelligent transmission, distribution, and consumption systems, promoting the digital and intelligent construction of the grid, enhancing user experience, and maximizing customer satisfaction. To expedite the establishment of a modern equipment management system, improve the network convenience, standardization, and safety of substations, and enhance the comprehensive intelligent perception ability and operational efficiency of substation equipment, as a qualified supplier unit of Southern Power Grid, Wintop will work hard to create personalized technical solutions in collaboration with all power partners, empowering the digital grid construction of Southern Power Grid.

01
Project Introduction

                                    Project Site Image

 

The 110 kV Taipingzi transformation and transmission project is located in the Guandu District of Kunming City and is the first smart substation project constructed in the Kunming area of the China (Yunnan) Pilot Free Trade Zone. The project occupies approximately 7.72 acres, with the main project including the design of the substation having a main transformer capacity of 3×63MVA.

 

Initially, 2 main transformers (1# and 3# main transformers) are to be constructed, each with a capacity of 2×63MVA, along with the supporting buildings. Two new 110 kV lines and four 10 kV lines will be constructed. Of the two 110 kV lines, they will connect from the double-loop "T" at the 110 kV Taipingzi substation to the 220 kV Guandu substation and the 110 kV Yongzhong substation, with a line length of approximately 2×2.9 km, relying on municipal cable trenches. The four 10 kV lines will lead to 10 kV Liu Jia Line 1 (line length of about 0.95 km), 10 kV Baohua Temple Line 1 (line length of about 0.6 km), 10 kV Chenjiazhuang Line 1 (line length of about 0.45 km), and 10 kV Xianghua Line 1 (line length of 0.45 km).

            Project Site Image

 

After commissioning, this project will better meet the power supply needs of the new urban center area in Wujia Ba, providing strong power support for urban development and fully empowering the province's green development, assisting the power industry in high-quality and sustainable development.



 

06
应用产品特性

        

                                      



 

With the rapid development of 5G+ technology, smart grids will become the inevitable choice for global power energy. The complexity of the construction environment presents more customized requirements for the transmission equipment's performance. Currently, Wintop's domestically produced “Four Unifications” dedicated switches for intelligent substations have been extensively applied within the power grid, providing long-term service to national and Southern Power Grid substations and distribution projects. In the future, Wintop will continue to adhere to a customer-centric approach, actively cooperate with national smart grid construction, and work hand-in-hand with clients to face the new round of energy technology revolution, contributing to the country's green and high-quality energy development!

 


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