The invention discloses a novel urban rail vehicle main circuit which is characterized in that a pantograph is downwards connected with a lightning arrester and a main fuse box, the other end of the lightning arrester is connected with a vehicle body and connected with a rail through the vehicle body, the lightning arrester plays a role in absorbing power grid overvoltage, lightning overvoltage and operation overvoltage, and the main fuse box is connected with the main fuse box. The main fuse box is connected with the pantograph and the high-voltage electric appliance box, and overload protection is carried out on cables and equipment. The circuit not only meets the normal functions of traction and auxiliary systems of urban rail vehicles, but also can solve the problem that in the prior art, direct power supply of a medium-voltage bus cannot be achieved in a main circuit of a rail transit vehicle, and provides power for a train direct-current load air conditioner through the arranged auxiliary medium-voltage bus. The operation efficiency of the auxiliary system can be improved, the system complexity is reduced, the system reliability is improved, and the equipment cost is reduced.
本发明公开了一种新型城轨车辆主电路,包括:该技术方案将受电弓向下与避雷器、主熔断器箱相连,避雷器的另一端与车体相连,并通过车体与轨道相连,避雷器起到对电网过电压、雷电过电压、操作过电压的吸收作用,主熔断器箱连接了受电弓与高压电器箱,对线缆及设备过载进行保护。该电路除了满足城轨车辆牵引、辅助系统的正常功能外,可以解决现有技术中轨道交通车辆主电路中无法实现中压母线直接供电的问题,通过本发明设置的辅助中压母线为列车直流负载空调提供供电,可以提升辅助系统运行效率、降低系统复杂度、提高系统可靠性、降低设备成本。
Novel urban rail vehicle main circuit
一种新型城轨车辆主电路
2023-11-10
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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