新能效标准下变压器的选择

杜毅威（中国建筑西南设计研究院有限公司，成都市 610042）

Selection of Transformer under New Energy Efficiency Standard

DU Yiwei（China Southwest Architectural Design and Research Institute Corp Ltd,Chengdu 610042，China）

Abstract：In view of the higher requirements of the new energy efficiency standard Minimum Allowable Values of Energy Efficiency and the Energy Efficiency Grades for Power Transformers(GB 20052 - 2020),this paper analyzes and compares the hot issues of commonly used 10 / 0.4 kV three‑phase transformers,such as the classification,core structure,

amorphous alloy material,silicon rubber insulation,aluminum foil winding,etc. The misunderstanding in the energy‑saving design of transformer is discussed.

Key words：transformer;minimum allowable value of energy efficiency;energy efficiency grade;plane laminated core;three dimensional wound core;amorphous alloy transformer;silicon rubber insulated transformer;aluminum foil winding

摘　要：针对变压器能效新标准GB 20052 - 2020《电力变压器能效限定值及能效等级》对变压器能效提出的更高要求，就常用10 / 0.4 kV三相变压器的分类、铁心型式结构、非晶合金材质、硅橡胶绝缘、铝箔绕组等节能变压器热点问题进行分析比较，并探讨变压器节能设计中存在的误区。

关键词：变压器；能效限定值；能效等级；平面叠铁心；立体卷铁心；非晶合金变压器；硅橡胶绝缘变压器；铝箔绕组

中图分类号：TM40       　　  　   文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2021.06.001