变压器励磁涌流对差动保护的影响及解决方法的探讨  

Discussion on the Influence of the Transformer′s Excitation Surge on Differential Protection and Solutions

作　　者：安晓龙[1] 王树达[1] 陈亮[1] 陈娟[2] 

机构地区：[1]海洋石油工程股份有限公司设计公司,天津300451 [2]辽河油田公司金马油田开发公司,辽宁盘锦124010

出　　处：《电气开关》2011年第3期10-12,17,共4页Electric Switchgear

摘　　要：变压器励磁涌流会对差动保护产生影响,造成保护装置误动作。这就需要分析励磁涌流产生的机理,研究励磁涌流对变压器差动保护的影响,对变压器励磁涌流的抑制及励磁涌流与变压器内部故障电流判别的方法进行探讨。The excitation surge of the transformer can have influence over differential protection,causing the protective device malfunction.This needs analyzing the excitation surge producing mechanism and studying the influence of the excitation surge on the transformer′s differentical production.The paper makes an approach to the transformer′s excitation surge control and the discriimination methods of the exzcitation surge and the internal fault current of the transformer.

关 键 词：变压器 差动保护 励磁涌流 

分 类 号：TM41[电气工程—电器]