Study on the Application of 220/20kV SF6 Gas Transformer
Abstract
With the rapid development of Shenzhen's economy, the land resources in Shenzhen are more and more scarce, and the location of substation is more and more difficult. In order to solve the contradiction between the land resources shortage and the development of power grid, the new mode of substation construction of "embedded attached substation" came into being. Because of the particularity of the embedded attached substation, the fire protection requires that the equipment of this kind of substation should be oil-free, making it difficult to select the appropriate 220/20kV transformer. Therefore, this paper studies a new 220/20kV SF6 gas transformer for the above problems, combined with its structural characteristics, aspects including fire protection, ventilation and noise reduction are described to provide reference for transformer selection of this type of substation.
References
Code for fire protection design of thermal power plants and substations (GB 50229-2006). Available from: https://max.book118.com/html/2017/0119/85236480.shtm.
Shenzhen Power Supply Bureau Co., Ltd. Research report on auxiliary substation.
Shenzhen Power Supply Planning and Design Institute Co., Ltd. Preliminary design report of 220kV Guiwan No. 3 transformer station. 2020.
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