GB 20052-2020
AbolishedMinimum allowable values of energy efficiency and the energy efficiency grades for power transformers
电力变压器能效限定值及能效等级
Application Summary AI generated
GB 20052-2020 specifies the minimum allowable values of energy efficiency and defines energy efficiency grades (1, 2, and 3) for power transformers, including oil-immersed and dry-type distribution transformers. It is applied in China to regulate the design, manufacturing, and procurement of power transformers used in electrical power distribution systems, industrial facilities, and commercial buildings. This standard is used for energy labeling, market access, and energy-saving assessments to promote higher efficiency in transformer operation.
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