屏蔽变压器在电气化铁路信息传输电缆防干扰中的应用  

Application of Shielded Transformers for Anti-interference of Information Transmission Cables for Electrified Railway

作　　者：常媛媛 张博闻 杨蕾 CHANG Yuanyuan;ZHANG Bowen;YANG Lei

机构地区：[1]中铁电气化局集团有限公司智慧交通技术分公司

出　　处：《电气化铁道》2021年第5期66-70,共5页Electric Railway

摘　　要：以长白电气化铁路直接供电方式为例,分析直接供电方式下牵引供电系统对沿线弱电系统信息传输电缆的电磁影响,并给出干扰模型;通过对电磁感应原理的分析,提出并设计了一种可以有效屏蔽信息传输电缆受电磁影响的屏蔽保护装置,同时设计并搭建试验平台,通过测试验证了该保护装置的屏蔽效果。Taking the Changchun-Baicheng electrified railway under the direct power supply mode as an example,the paper analyzes the electromagnetic interference to information transmission cables of weak current along the line caused by the traction power supply system under direct power supply mode,presents the interference model,puts forward and designs a shielded and protection device which is able to shield effectively the electromagnetic interference,and at the same time,designs and establishes a testing platform.The shielding effects of the protection device have been proved through testing verification.

关 键 词：电气化铁路 直接供电 感应电压 屏蔽系数 屏蔽变压器 

分 类 号：U228.2[交通运输工程—道路与铁道工程]