A control method of rail vehicle grounding resistance and its grounding plate

Abstract

The invention provides a control method for a grounding resistor of a rail vehicle and a grounding plate. The grounding resistor is controlled within a reasonable range so that the reliability in grounding is improved so as to enhance the safety in running. The control method comprises the following steps of (1) dividing the grounding resistor into three sub resistors which are connected with each other in series; (2) distributing resistance ranges of the sub resistors; and (3) controlling the sub resistors to control the resistances of the sub resistors within their own corresponding resistance ranges. According to the control method for the grounding resistor of the rail vehicle, the grounding resistor is divided into the three sub resistors, and then the resistance ranges of the sub resistors are distributed and the sub resistors are further respectively controlled according to the resistance range so as to control the sub resistors within their own resistance ranges; therefore, the grounding of a vehicle body is controllable and the reliability in grounding is improved so that the stability and safety in running are enhanced. According to the grounding plate provided by the invention, the grounding resistor is controlled by using the control method.

Description

technical field [0001] The invention relates to the technical field of rail vehicle grounding protection, in particular to a control method for rail vehicle grounding resistance and a grounding plate thereof. Background technique [0002] As an important means of transportation, rail vehicles have been widely used at home and abroad. In the design of rail vehicles, based on the improvement of driving speed and riding environment, a large number of on-board equipment are used on rail vehicles such as domestic EMU trains, subways and urban light rails, forming a relatively complex electrical control system. In order to improve the stability and safety of the equipment on the vehicle, it is necessary to connect the ground wire of the electrical equipment to the vehicle, that is, connect the ground wire to the ground rail through the bogie frame for grounding treatment. [0003] Specifically, the bogie frame and the ground rail are connected through a ground plate. According to...

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Problems solved by technology

[0005] However, during the operation of the vehicle, the grounding plate itself is worn out, and changes in the use environment will affect its internal resistance and its connection with the bogie frame and grounding rail, resulting in changes in the grounding resistance of the vehicle body, which cannot meet the The requirements of the above norms affect the safety of trains

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