防止和应涌流引起差动保护误动综述  

Survey on Precautions of Differential Protection Mal-operation Caused by Sympathetic Inrush

作　　者：孙向飞[1] 周建萍[1] 夏聆峰 

机构地区：[1]昆明理工大学电力工程学院,昆明650500

出　　处：《云南电力技术》2013年第6期15-19,共5页Yunnan Electric Power

基　　金：国家自然科学基金项目(51007035);云南省自然科学基金项目(2009ZC016M);昆明理工大学人才培养基金项目(KKZ320201004003)

摘　　要：针对和应涌流引起变压器差动保护误动的现象,将各文献提出的应对和应涌流导致差动保护误动的措施整理归纳为励磁涌流的抑制技术、抗CT饱和对策、对现有差动保护的改进方法、运行及接线方式的调整和优化、寻求变压器保护新方法五大类,并对这五大类防误动措施进行总结综述,分析各类措施的优缺点及实用性,最后对相关问题的研究方向进行了展望。Aim at researching on transformer protection mal - operation caused by sympathetic inrush, counter precautions proposed by literatures can be classified in five categories： magnetizing inrush suppression, countermeasures against CT saturation, improve- ments to the differential protection, operation and wiring optimization, and seeking new ways to protect the transformer. The advan- tages and disadvantages of these precautions are analyzed. Finally, future relevant research issues were proposed.

关 键 词：和应涌流 励磁涌流 变压器 差动保护 防误动措施 

分 类 号：TM772[电气工程—电力系统及自动化]