electric traction line

1. The overhead contact line is used to supply power for the train's electric traction.

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1. Microprocessor-based feeder line protection equipment is regarded as one of the important components of traction power substation automation, which is fundamental to guarantee the safe and stable operation of the electric railway.
摘要牵引变电站自动化系统是保证电气化铁路安全稳定运行的基础，而微机馈线保护装置作为牵引变电站自动化系统的重要组成部分之一，具有极其重要的作用。

2. Vacuum circuit breaker is one of the most important electric accessory in traction power supply control. Circuit Breaker (CB) on-line monitoring plays an important role in the safety operation of the system.
真空断路器是牵引供电控制中最重要电气设备之一，真空断路器的在线监测对保障供电系统安全运行具有十分重要的意义。

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3. A new type of auto-transformer electric traction supply system for double-line electrified railways
双线电气化铁路自耦变压器式新型供电系统研究与探讨

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4. This paper presents in detail the design and installation of underframe-mounted electric equipment of rapid rail transit line 3 in Dalian, including traction system, auxiliary power supply system, junction box etc.
阐述了大连快速轨道交通3号线车辆车架电气设备的设计及安装，包括牵引系统和辅助供电系统以及分线盒、接线箱等。

5. Electric traction has become the unique traction method of High-speed railway and Passenger-special line because of its unexampled advantages. Also, unprecedented chances and challenges of the speediness development in Electrification railway have come along.
由于具有无可比拟的优势，电力牵引已成为高速铁路和客运专线牵引方式的必然选择，电气化铁路的快速发展迎来了前所未有的机遇和挑战。

6. To solve the problem that accuracy of traditional fault location algorithm for traction networks is affected by integer, non-integer harmonics, electric locomotive and fluctuation of traction line's parameters, a novel fault location algorithm is presented which uses fault-generated transient voltages measured at single terminal.
针对牵引网目前广泛应用的故障测距算法易受整次、非整次谐波、机车负荷以及线路参数波动的影响，提出一种利用线路单端暂态电压进行精确故障测距的新算法。

7. For investigating the air pollution in double line railway tunnel by electric traction, we tested the air condition in Jundushan tunnel.
为了解电力牵引的双线铁路运营隧道空气污染状况，选择军都山隧道进行现场测试。

8. Introduction focuses on the anti slip/slide device, applying creep ratio control theory, for traction/electric braking system used on vehicles of Guangzhou metro line No.
主要介绍广州地铁1号线车辆用牵引/电制动系统的防空转/防滑系统。