多用途500kV备用变压器的研究  

Study on All-applicable Alternative 500 kV Transformer

作　　者：杨长青 龙凯华[2] 马继先[2] 李雨[2] 刘少宇[2] 孟庆大[3] 

机构地区：[1]秦皇岛电力公司,河北秦皇岛066000 [2]华北电力科学研究院有限责任公司,北京100045 [3]北京超高压公司,北京102488

出　　处：《华北电力技术》2012年第11期15-20,共6页North China Electric Power

摘　　要：冀北电力公司500 kV变电站运行的500 kV/400 MVA的单相自耦变压器,往往因参数差异而无法统一配置备用变压器。通过仿真计算并联运行环流、零序电压,研究了多用途备用变压器的参数选取方案,可替换任意该类变压器,同时满足电力安全可靠运行的要求,目前已成功应用于电力生产中。It is not always feasible to equip an alternative transformer for all 500 kV/400 MVA single-phase auto- transformers in the substations because of the parameter differences. In this paper,parameters selection of the all-ap- plicable alternative transformer were studied by calculating the circulating current in transformer parallel operation and zero-sequence voltage. Such alternative transformer can substitute any transformers of this kind and achieve the requirements of safety and reliability. Presently they have been successfully used in electric power production.

关 键 词：多用途 500 KV 备用变压器 可行性 

分 类 号：TM411[电气工程—电器]