2021 Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers of china
Writer： Hengfeng you electric Time：2023-04-19 views：times
2021 Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers of china
Focusing on global carbon neutralization and carbon peaking, the mandatory national standard GB 20052-2020 "energy efficiency limits and energy efficiency grades of Power Transformers" formulated by China's State Administration of market supervision and administration and China's National Standardization Administration on May 29, 2020 has been released and will be formally implemented on June 1, 2021 (the EU will implement the new standard from July 1, 2021). The current three-level energy efficiency distribution transformer will start to be completely eliminated, and the energy efficiency of power transformer of State Grid of China has entered a new era!
It is reported that with the promulgation and subsequent implementation of the new energy efficiency standards, the transformer industry will surely usher in a new round of comprehensive upgrading, and the transformation and upgrading of China's national "Green Grid" will certainly step onto a new stage. It puts forward higher requirements for the energy efficiency index of power transformer, and the energy efficiency requirements are in line with the international standards. Compared with the latest standards implemented by the European Union in 2021, the requirements of China's national energy efficiency standards are higher, far ahead of the European Union and other developed countries. It can be said that China's State Grid has continuously created the world's first.
Compared with the traditional transformer, the new transformer saves more energy consumption and land resources, and is more conducive to building a beautiful living environment of "green water and green mountains are golden mountains and silver mountains". According to the latest Chinese national standard, the electrical engineer of Qingdao hengfengyou Electric Co., Ltd. said that compared with the previous s13-m-630kva oil immersed transformer, the no-load of the new transformer decreased by 52%, the load decreased by 38%, and the generation cost increased by about 35%, which is more energy-saving than the existing amorphous transformer, and the production cost is also lower than that of the amorphous transformer by 20%, which can completely replace the amorphous alloy transformer; Obvious energy saving and outstanding economic benefits are of milestone significance to realize carbon neutralization and carbon peak.
