With the increasing saturation of buildable land resources in big cities, the research on "indoorization, miniaturization, and oil-free" of substations is of great significance for realizing the coordinated development of substation construction and economic, social, and ecological environment. A few days ago, Shenzhen Aodian High Voltage Electric Co., Ltd. released an innovative product - 220kV evaporative cooling power transformer. The new type of power transformer is the key to promoting the implementation of the "Embedded Attached Substation" project, which will realize the construction of substations in the central area of high-density cities.
According to reports, the 220kV evaporative cooling power transformer adopts a new type of fluorocarbon material as the insulating cooling medium, which has no flash point, no combustion and no explosion, and realizes the integration of fire protection, environmental protection and heat dissipation. "Compared with previous products, this product has a higher voltage level, setting a new high in the capacity of non-combustible power transformers, and is more energy-saving, environmentally friendly and efficient." said Xiao Xia, chairman of Shenzhen Aodian High Voltage Electric Co., Ltd. The research and development lasted 5 years and broke through a series of key technical problems in core technologies. Among them, Shenzhen has played a great role in providing a good environment for innovative technologies.
Li Hanming, the former deputy chief engineer of Shenzhen Power Supply Bureau Co., Ltd., believes that the 220kV evaporative cooling power transformer is a landmark breakthrough product in the history of power transformer technology development. On the one hand, it can prevent fire and explosion accidents of power transformers and protect people's lives and property; on the other hand, evaporative cooling power transformers can be "embedded" in office areas, production areas, and living areas, which greatly saves urban land space.
The Guangdong-Hong Kong-Macao Greater Bay Area is densely populated with contiguous cities and huge demand for electricity. Take Shenzhen as an example. In 2019, Shenzhen's power load reached a maximum of 19.1 million kilowatts, ranking first in the country. There are currently about 270 substations in Shenzhen, and more than 100 will be built in the future. The conventional construction covers a huge area. It is estimated that if the substations are replaced by embedded substations, more than ten substations can be reduced in Guangming District of Shenzhen alone.
Jia Xingdong, director of the Shenzhen Municipal Bureau of Industry and Information Technology, said that in many large cities, due to the increasing saturation of buildable land resources, promoting the construction of embedded substations is of great significance for improving the comprehensive development benefits of land and the coordinated development of the economic, social and ecological environment.
