浅析7UT512型微机变压器差动保护校验方法  

Analysis of the Numerical Transformer Differential Protection 7UT512 Test

作　　者：赵艳[1] 路金川 王铁松[3] 

机构地区：[1]济宁供电公司,山东济宁272100 [2]历城供电公司,山东济南250100 [3]济南供电公司,山东济南250012

出　　处：《山东电力技术》2006年第2期44-46,共3页Shandong Electric Power

摘　　要：7UT512型微机变压器差动保护装置是一种新型的继电保护装置,针对该保护装置的现场校验存在的问题,结合现场工作经验和技术说明书,讨论了变压器各侧差动定值的折算关系,以及变压器绕组接线系数的取值。可供继电保护技术人员参考。The numerical transformer differential protection 7UT512 is a new type relay. Aiming at those problems,combining with work experience and technical description, the relation of coverte between secondary currents into the relay from different sides of the transformer, and the value of CT-ratio, are discussed. It can he reference media of relay protection engineers at jobsite.

关 键 词：变压器 差动保护 矩阵 向量 接线系数 

分 类 号：TM77[电气工程—电力系统及自动化]