10kV小电阻接地系统站用变配置方案研究  

Study of Configuration of Grounding Transformer and Station Transformer in 10kV Low Resistance Grounding System

作　　者：王楠[1] 梁伟[2] 

机构地区：[1]国网天津市电力公司经济技术研究院,天津300171 [2]国网天津市电力公司电力科学研究院,天津300384

出　　处：《电力勘测设计》2014年第5期70-74,共5页Electric Power Survey & Design

摘　　要：本文通过对10kV小电阻接地系统中接地变、站用变的运行特点进行研究,给出小电阻接地系统接地变、站用变分别配置和接地变兼做站用变的两种设计方案。从可靠性、灵活性、经济性三方面对两方案进行对比分析,指出采用接地变兼做站用变的接线方式与接地变、站用变分别配置方式相比,牺牲了部分可靠性和灵活性,达到了经济上的优化配置,具有工程应用价值。This paper studies the running characteristics of grounding transformer and station transformer in 10kV low resistance grounding system, gives two designs of low resistance grounding system： grounding transformer＆ station transformer separately configuring and grounding transformer doubling as station transformer. This paper analyzes the two designs from reliability, flexibility and economic, points out that the design of grounding transformer doubling as station transformer sacrifices part of reliability and flexibility, achieves the optimal allocation of economic, which has engineering application value.

关 键 词：小电阻接地 接地变 站用变 

分 类 号：TM862[电气工程—高电压与绝缘技术]