地铁降压变压器负载率与经济运行研究  

Research on Load Rate of Metro Step-down Transformer and Economical Operation

作　　者：施云琼 SHI Yunqiong(PowerChina Huadong Engineering Corporation Limited,Hangzhou 311122,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,杭州市311122

出　　处：《建筑电气》2019年第3期19-24,共6页Building Electricity

摘　　要：变压器性能指标已有质的提高,而一些设计人员却仍按旧思路进行选型设计。通过探究原设计思路的出处、计算分析现产品的数据,指出原思路存在的问题。同时针对地铁行业的负荷特点,进行模拟分析计算,提出设计应考虑的问题及改进的方法。The performance index of transformers has been improved qualitatively,but some designers still design the types with their old ideas. The existing problems of the original ideas are pointed out by exploring the origins of the original design ideas and calculating and analyzing the data of the existing products. Meanwhile,according to the load characteristics of the metro industry,the simulation analysis and calculation are carried out,and the problems that should be considered and the improvement methods in the design are proposed.

关 键 词：地铁降压变压器 变压器容量 负载率 经济运行区 劣行区 过载 无功经济当量 综合损耗 

分 类 号：U231.8[交通运输工程—道路与铁道工程]