励磁涌流引起牵引主变压器后备保护跳闸分析  

Analysis of Back-up Protection Tripping of Traction Transformer caused by Excitation and Surge Current

作　　者：张向群 武启燕 蔡戎 ZHANG Xiangqun;WU Qiyan;CAI Rong

机构地区：[1]大秦铁路股份有限公司太原供电段

出　　处：《电气化铁道》2019年第S01期202-204,共3页Electric Railway

摘　　要：确保安全不间断供电直接关系到电气化铁路运输的畅通,牵引变电所是电气化铁路的心脏,牵引主变压器在变电所安全稳定运行中举足轻重。本文主要对励磁涌流引起牵引主变压器后备保护跳闸进行探讨,重点分析跳闸原因及应急处置措施。The guarantee of safe and uninterrupted power supply has direct relations to unimpeded transportation of electrified railways, and the traction substation is the heart of the electrified railway, the traction transformer has a decisive role for safe and reliable operation of the substation. The paper discusses the back-up protection tripping of traction transformer caused by the excitation and surge current, analyzes in details the causes of tripping and puts forward the emergency treating measures.

关 键 词：励磁涌流 主变压器 后备保护 跳闸 应急处置 

分 类 号：U223.82[交通运输工程—道路与铁道工程]