摘要
DDL保护作为直流牵引供电系统中线路上的主要保护,可以有效的保护直流牵引供电系统。该文首先介绍了DDL保护的工作原理,给出了保护动作的逻辑流程。介绍了DDL保护的整定方法。结合实际运营情况,描述了DDL保护应该注意的问题。
DDL protection,as the main protecting measures on the feeder line in subway DC power supply system,plays an important role in ensuring reliable power supply.At the beginning,the principle of DDL protection and the logical of DDL protection are introduced,The principle setting the parameters in the DDL protection is stated then.Finally,serveral cautions needing attention in the application of DDL,protection are proposed.
作者
周鑫
张婷
李国玉
Zhou Xin;Zhang Ting;Li Guoyu(Wuhan Institute of Marine Electric Propulsion,Wuhan 430064,China)
出处
《船电技术》
2019年第11期56-60,共5页
Marine Electric & Electronic Engineering
