27.5kV AT供电系统短路电流分析  

Analysis of Short Circuit Current in 27.5 kV AT Power Supply System

作　　者：辛成山[1] 

机构地区：[1]北方交通大学电气工程学院

出　　处：《电气化铁道》2002年第4期1-4,共4页Electric Railway

摘　　要：通过分析27.5kVAT供电系统的短路电流、牵引网阻抗和用于继电保护的短路电流测量方法,认为其和正常AT系统基本一样。不同的是,在R-PF短路时,第1个AT绕组承受的短路电流为正常AT系统的2倍。By analyzing short circuit current, impedance of traction power network and short circuit current measurement for relay protection in 27.5 kV AT power supply system, it concludes that this AT system is essentially identical to the normal AT system. The only difference is: the withstanding short circuit current of first winding of AT is two times of that of normal AT system when short circuit being occurred between rail and positive feeder.

关 键 词：牵引供电 AT供电系统 短路电流 电气化铁路 自耦变压器供电方式 

分 类 号：U223.512[交通运输工程—道路与铁道工程]