变压器主保护原理及其影响因素分析  

Analysis of Transformer Primary Protection Principles and Its Influencing Factors

作　　者：吴欣城 

机构地区：[1]广西电网公司灵山供电公司,广西灵山535400

出　　处：《电气开关》2013年第6期106-108,共3页Electric Switchgear

摘　　要：讨论了变压器在电力系统中的重要地位及其运行的复杂性,详细地分析了变压器纵差保护的原理性问题。互感器、变压器自身等因素会产生不平衡电流,影响纵差保护的准确识别进而影响其可靠性,分析了产生不平衡电流的几个原因及其改进措施。This article discusses the transformer in the power system in an important position and the complexity of the operation, a detailed analysis of transformer differential protection principle issues. Transformer, the transformer itself and other factors will create an imbalance currents affect accurate identification of differential protection thereby affecting its reliability, the article analyzes the current imbalance produced several causes and improvement measures.

关 键 词：纵差保护 不平衡电流 励磁涌流 

分 类 号：TM41[电气工程—电器]