数字式变压器差动保护误动分析及防范措施  

Analysis of misoperation of digital differential protection for transformer and countermeasure

作　　者：邓子伟[1] 

机构地区：[1]南宁化工股份有限公司,广西南宁530031

出　　处：《中国氯碱》2011年第10期24-27,共4页China Chlor-Alkali

摘　　要：通过对一起主变差动保护误动原因的分析,介绍了HN-2042型数字式变压器差动保护电流相位校正和幅值平衡补偿的基本原理,对误动原因进行了定性分析和定量计算,从技术和管理方面提出了防范措施。According to the analysis of reasons of misoperation of differential protection, the basic principles of HN-2042 digital differential protection for transformer current phase correction and balance makeup of amplitude were introduced. Reasons of misoperation was analysed and calculated. The countermeasures were put forward from technology and management.

关 键 词：数字式变压器 差动保护 相位校正 幅值平衡 平衡系数 

分 类 号：TM407[电气工程—电器]