简析ZPW-2000轨道电路中继电器接点接触电阻  

Analysis of Contact Resistance of Relay Contacts in ZPW-2000 Track Circuit

作　　者：赵正元 都丽娟[2] 李伟[2] 于丽娟[2] 鞠弘智 吴书宇 Zhao Zhengyuan;Du Lijuan;Li Wei;Yu Lijuan;Ju Hongzhi;Wu Shuyu

机构地区：[1]西安铁路信号有限责任公司,西安710100 [2]沈阳铁路信号有限责任公司,沈阳110025

出　　处：《铁路通信信号工程技术》2022年第S01期141-146,共6页Railway Signalling & Communication Engineering

摘　　要：保障ZPW-2000轨道电路安全平稳运行,需要整套电路中的各个部件可靠稳定。铁路信号继电器作为轨道电路中的重要基础器材,其可靠接通和安全断开关系到轨道电路的安全运行,尤其继电器接点的接触可靠性对轨道电路的可靠运行影响深远、意义重大。接触可靠性一般用接触电阻来考量,接触电阻又可细分为固有电阻、膜电阻和收缩电阻。To ensure the safe and stable operation of ZPW-2000 track circuit,each part of the track circuit needs to be reliable and stable.The railway signal relay is an important basic equipment in the track circuit,and its reliable connection and safe disconnection are related to the safe operation of the track circuit.In particular,the contact reliability of the relay contacts has a far-reaching and signifi cant impact on the reliable operation of the track circuit.Contact reliability is generally measured by contact resistance,which can be subdivided into intrinsic resistance,membrane resistance and shrinking resistance.

关 键 词：接触可靠性 膜电阻 收缩电阻 

分 类 号：U284.2[交通运输工程—交通信息工程及控制]