城市轨道交通车辆供电设备常见故障的分析

城市轨道交通车辆供电设备常见故障的分析

摘要

接触网是轨道交通为车辆提供电能的供电设备，一旦出现故障定然影响行车运行，接触网的本质上就是一种传输电能的线路，和传统的电力线路相同，将从牵引变电所获得的电能进行远距离传输，输送给指定设备，但是，因为接触网的消耗电能电的设备是固定的，是电气化铁路上运行的列车和城市轨道交通所应用的列车，所以，接触网的电压等级和供电方式与传统的电力线路不同，电力机车的特点是必须时时刻刻的保持变换位置运行，为了保障运行安全，不可以将电线直接与电力机车固定连接，只能把提供电能的线路进行固定架设，通过受电弓传输电能，刚性接触网是采用的汇流排固定上接触的导线，利用汇流排的结构非常坚固，硬度高，让整根接触导线保持相同的对地高度，不用使用链形的承力索，使得由限的悬挂空间得到了极致的利用，文中接介绍了接触网的类型都有哪些，还有接触网的基本的结构是什么，和接触网采用的供电方式和接触网的组成是什么还有接触网的结构与设备都有哪些，以及常见的故障和分析。

关键词：城市轨道交通；接触网；故障

Analysis of Common Faults of Power Supply Equipment for

Urban Rail Transit Vehicles

ABSTRACT

The contact network is a power supply facility where the orbital traffic supplies power to the vehicle. When a malfunction occurs, it always affects the operation of the vehicle Catenary is essentially a line for transmitting electric energy. Like the traditional power line, it will transmit the electric energy obtained from traction substation to designated equipment at a long distance. However, as the electric equipment of catenary is designated electrified railway or electric locomotive used in urban rail transit, therefore, The voltage level and power supply mode of the catenary are different from those of the traditional power lines.The feature of the electric locomotive is that you must change the position at any time.In order to ensure safe operation, electric wires cannot be directly and fixedly connected with the electric locomotives, only the lines providing electric energy can be fixedly erected, and electric energy can be transmitted through pantographs. Rigid suspension is a suspension mode of clamping wires on a bus bar, and the contact wires are kept at the same installation height by virtue of the rigidity of the bus bar itself. Therefore, the chain-shaped load-bearing cable is eliminated, so that the contact suspension system has the minimum structural height and the limited suspension space is utilized to the

greatest extent. This paper introduces the type of contact net, the basic structure of contact net, the power supply mode of contact net, the composition of contact net, the structure and equipment of contact net, and the analysis of common faults.

Keywords: urban rail transit Contact net fault

目录

1 引言 (1)

1.1 城市的轨道交通的概况 (1)

1.2 接触网的类型 (2)

1.3 接触网的供电 (3)

1.4 接触网的结构 (4)

1.5 接触网的常见故障 (4)

2 城市轨道交通车辆供电设备常见故障的分析 (4)

2.1 城市轨道交通刚性接触网的特点 (5)

2.2 城市轨道交通刚性接触网受电弓在锚段关节处的拉弧现象和汇流排 (5)

2.3 汇流排的绝缘子爆炸和掉落等故障 (5)

2.4 刚性接触网与柔性接触网的过渡处和刚性接头处以及受电弓的磨损 (5)

2.5 中间接头螺丝滑丝和螺栓松 (5)

2.6 刚性接触网磨损的分析 (6)

2.7 刚性接触网的正弦波形布置方式 (6)

2.8 柔性接触网分段绝缘器的常见故障 (6)

2.9 单轨交通刚性接触网磨损的不平均的分析 (7)

3 接触网异常磨损问题的防范于解决 (7)

3.1 城市轨道交通汇流排的故障防范 (7)

3.2 城市轨道交通刚性接触网零件松动的防范 (7)

3.3 城市轨道交通刚性接触网异常磨损的解决方法 (8)

3.4 城市轨道交通柔性接触网分段绝缘器故障解决方法 (8)

结论 (10)

参考文献 (11)

致谢 (12)

1 引言

1.1 城市的轨道交通的概况

自21世纪，拥有节省能源、安全可靠、方便快捷、绿色环保等多个优点的城市的轨道交通建设受到越来越多的城市特殊的关注，它不单单只是具有优秀的运输能力和非同一般的服务水平，对资源环境效益增幅也是不可估量，而且能够按照计划规定