摘要
农网配电变压器容载比要考虑实际情况进行选择。分析了3个不同导则推荐的农网配电变压器容载比,通过对配电变压器容载比影响因素分析,研究了现有导则中配电变压器容载比推荐值差别较大的原因。在近40个县级电网改造升级规划实践基础上,提出了比较符合实际的容载比推荐值及其参数取值范围,最后结合负荷预测和电力平衡得出所需配电变压器容量及台数。经实际算例的应用,表明该方法操作性强,能切实指导电网改造升级工作。
The capacity-load ratio for distribution transformer should be selected considering the reality in rural network. Three different distribution transformer capacity-load ratios recommended by three Guides in rural network are analyzed. The reasons for quite different recommended values in the Guides are researched also, by analyzing the impact factors of distribution transformer capacity-load ratio. The actual recommended values of ratio and the related parameters are shown based on the electric power upgrade and reform planning of almost 40 counties. Finally, the capacity and number of distribution transformer are obtained by combining with load forecasting and power balance. Real applications show that the proposed method is operated easily and is a good guide for the work of the network upgrade and reform planning.
出处
《供用电》
2012年第3期1-5,21,共6页
Distribution & Utilization
基金
科技部科技型企业技术创新基金资助项目:06C26225110507
关键词
容载比
农网改造
配电变压器
负荷密度
capacity-load ratio rural network reform distribution transformer load density
