一起500 kV电流互感器爆炸引起母差动作的分析  

An Analysis of the Bus Differential Protection Caused by a 500 kV Current Transformer Explosion

作　　者：穆云龙 翁凌 都小利 臧伟[1] MU Yunlong;WENG Ling;DU Xiaoli;ZANG Wei(Maintenance Company of State Grid Anhui Electric Power Co. , Ltd. , Hefei 230061, China;Training Center of State Grid Anhui Electric Power Co. , Ltd. , Hefei 230022, China;Anhui Electrical Engineering Professional Technique College, Hefei 230051, China)

机构地区：[1]国网安徽省电力有限公司检修分公司,安徽合肥230061 [2]国网安徽省电力有限公司培训中心,安徽合肥230022 [3]安徽电气工程职业技术学院,安徽合肥230051

出　　处：《安徽电气工程职业技术学院学报》2020年第1期57-61,共5页Journal of Anhui Electrical Engineering Professional Technique College

摘　　要：通过对一起500kV电流互感器爆炸的事故分析,指出不同的厂家由于原理差异,在针对转换型故障时有可能出现动作不一致的情况,并进一步说明双重化设备选用不同厂家产品的重要性。Based on the analysis of the 500 kV current transformer explosion,this paper points out that,due to variations in principles,protection devices from different manufacturers may act inconsistently when dealing with conversion type faults,which further illustrates the importance of selecting products from different manufacturers for dual equipment.

关 键 词：电流互感器 转换型故障 动作不一致 

分 类 号：TM452[电气工程—电器]