两种数字电流保护在重庆轨道交通的应用探析  

Analysis of the Application of Two Types of Digital Current Protection in Chongqing Rail Transit

作　　者：何歆 HE Xin(Chongqing Rail Transit Design and Research Institute,Chongqing 101122,China)

机构地区：[1]重庆市轨道交通设计研究院,重庆401122

出　　处：《电工技术》2018年第19期125-126,129,共3页Electric Engineering

摘　　要：介绍两种在重庆轨道交通供电系统35kV中压环网实际应用的数字电流保护——西门子7SJ686-M和南瑞继保PCS-9611DT,分别阐述两种保护的网络结构及原理,并分析两种保护方案的优缺点,为后期工程的应用提供参考。Two kinds of digital current protection used in the 35kV rail transit power supply system in Chongqing:Siemens 7SJ686-M and Nanrui PCS-9611 DT,were introduced respectively.The network structure and principle of the two types of protection were discussed.The advantages and disadvantages of the two protection schemes were analyzed to provide reference for the application of the later engineering.

关 键 词：城市轨道交通 数字电流保护 近区保护加速跳闸 通用对象 

分 类 号：TM58[电气工程—电器]