With the increasing saturation of constructable land resources in big cities, the research on "indoor, miniaturization and oil-free" substation is of great significance to realize the coordinated development of substation construction and economic, social and ecological environment. Recently, Shenzhen aodian High Voltage Electric Co., Ltd. released an innovative product - 220kV evaporative cooling power transformer. As the key to promote the implementation of the "embedded auxiliary substation" project, the new power transformer will realize the construction of substation in high-density urban central area.
It is reported that the 220kV evaporative cooling power transformer adopts a new fluorocarbon material as the insulating cooling medium, which has no flash point, non combustion and non explosion, so as to realize the integration of fire protection, environmental protection and heat dissipation“ Compared with previous products, this product has a higher voltage level, a new high capacity of non combustible power transformer, and is more energy-saving, environmental friendly and efficient. " Xiao Xia, chairman of Shenzhen aodian High Voltage Electric Co., Ltd., said that the product research and development lasted five years and broke through a series of core technology and key problems. Among them, the good environment provided by Shenzhen for innovative technology has played a great role.
Li Hanming, former deputy chief engineer of Shenzhen Power Supply Bureau Co., Ltd., believes that 220kV evaporative cooling power transformer is a landmark breakthrough product in the history of power transformer science and technology development. On the one hand, it can eliminate the fire and explosion accidents of power transformers and ensure the safety of people's lives and property; On the other hand, evaporative cooling power transformer can be "embedded" into office area, production area and living area, which greatly saves urban land space.
The Great Bay area of Guangdong, Hong Kong and Macao is densely populated and has a huge demand for electricity. Taking Shenzhen as an example, in 2019, the power load of Shenzhen reached 19.1 million KW, ranking first in China. There are about 270 substations in Shenzhen, and more than 100 more will be built in the future. According to the conventional construction, it covers a huge area. It is estimated that if the embedded auxiliary substation is replaced, more than ten substations can be reduced in Guangming District, Shenzhen alone.
Jia Xingdong, director of Shenzhen Bureau of industry and information technology, said that in many big cities, due to the increasing saturation of available land resources, promoting the construction of embedded auxiliary substations is of great significance for improving the benefits of comprehensive land development and the coordinated development of economic, social and ecological environment.
