变压器相间后备保护现存问题及改善措施  

The Existing Problems of Transformer Phase Backup Protection and Improving Measures

作　　者：陆寅 邵斌 

机构地区：[1]江苏省电力公司检修分公司苏州运维分部,江苏苏州215000

出　　处：《通信电源技术》2014年第3期127-128,共2页Telecom Power Technology

摘　　要：在导致变压器损坏或者故障的外部因素中,变压器相间后备保护方面的问题是最主要的因素之一,其对低压侧相间故障的灵敏程度不够,而且动作的时间限制较长是故障的主要原因。文中介绍了变压器的后备保护,分析了变压器相间后备保护中存在的问题,并且提出了针对性的改善措施。Due to external factors in the transformer damage or failure,one of the main reasons is in phase backup pro-tection for transformer,mainly due to the interphase fault sensitive is not enough on the low voltage side and limitation of its action time is longer.This paper introduced the backup protection of transformer,analyzed the existing problems of transformer phase backup protection problem,and put forward some measures to solve and improve.

关 键 词：变压器 相间后备保护 问题和措施 

分 类 号：TM772[电气工程—电力系统及自动化]