电力变压器能效限定值扩展研究

Research on Expansion of Energy Efficiency Minimum Allowable Values of Power Transformer

通过对国标GB 20052-2020中能效限定值的分析,对其未覆盖的产品规格进行扩展研究。本文推算了不同容量变压器、相近电压变压器、不同调压方式变压器的能效限定值,并对高阻抗变压器的能效限定值进行了评估,合理扩展了能效变压器的范围。

Through the analysis of the energy efficiency minimum allowable values in the national standard GB 20052-2020,the product specifications not covered are extended research.In this paper,the energy efficiency minimum allowable values of transformers with different power,transformers with similar voltages and transformers with different tap-changer are estimated,and the energy efficiency minimum allowable values of high impedance transformers are evaluated,which reasonably expands the scope of energysaving transformers.