配电变压器的经济负荷系数范围分析与容量选择

The Analysis of Economic Load Coefficient Range and the Selection of Capacity of Distribution Transformers

从配电变压器的电能损耗与年综合电能损耗率变化曲线着手,论证了以年综合电能损耗最小观念来确定变压器的最大负荷系数选择范围。此外,通过分析总拥有费用(TOC)与负荷系数的关系,讨论了按总拥有费用(TOC)最小原则选择变压器容量的经济负荷系数范围,从经济性角度提出了变压器容量选择的新方法。

This paper demonstrates the choice of maximum transformer load coefficient is determined in line with the minimum of year complex power loss according to the change of power loss of distribution transformer and the rate of year complex power loss. Furthermore, by analyzing the relationship of total own cost （TOC） and load coefficient .the economical load coefficient range of transformer capacity is selected according to the principle of minimum TOC. The method of the transformer capacity chooses is proposed from the perspective of economics.