轨道交通直流牵引供电系统线路测试回路熔断器选型方法分析  

Analysis of Selection Method for Fuses in Testing Circuit of DC Traction Power Supply System for Rail Transit

作　　者：陈申淮 CHEN Shenhuai(Guangzhou Metro Group Co.,Ltd.,Guangdong 510145,China)

机构地区：[1]广州地铁集团有限公司,广东510145

出　　处：《电子技术（上海）》2024年第7期142-144,共3页Electronic Technology

摘　　要：阐述直流牵引供电系统线路测试回路的功能原理,以及线路测试回路的熔断器选型计算方法,提出熔断器的额定容量主要取决于线路测试回路直流线缆和接触器额定容量、线路测试电阻大小以及保护装置线路测试逻辑。其熔断器选型一般考虑一定的余量应选取最小规格熔断器。This paper describes the functional principle of the DC traction power supply system line testing circuit,as well as the calculation method for selecting fuses for the line testing circuit.It is proposed that the rated capacity of fuses mainly depends on the rated capacity of the DC cable and contactor in the line testing circuit,the size of the line testing resistance,and the logic of the protection device line testing.The selection of fuses generally considers a certain margin,and the smallest specification fuse should be selected.

关 键 词：直流牵引供电系统 线路测试回路 限流电阻 限流熔断器 

分 类 号：G712[文化科学—职业技术教育学]