Method for measuring electrical performance of rail vehicles
A rail vehicle, electrical performance technology, applied in the direction of grounding resistance measurement, measuring electricity, measuring devices, etc., can solve the problems of rail vehicle shielding and grounding performance auxiliary evaluation
Active Publication Date: 2022-08-02
CRRC QINGDAO SIFANG CO LTD
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Problems solved by technology
[0004] The invention provides a method for measuring the electrical performance of rail vehicles, which is used to solve the defect that the rail vehicles made of carbon fiber composite materials cannot be related to the auxiliary evaluation of shielding and grounding performance in the prior art
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[0038] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.
[0039] In the description of the embodiments of the present invention, it should be noted that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing this Inventive embodiments and simplified descriptions are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limitin...
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The invention provides a method for measuring the electrical performance of a rail vehicle, including: measuring the impedance of a skin shielding layer of a vehicle body of the rail vehicle; measuring the impedance of the vehicle body grounding network of the vehicle body; measuring the adjacent vehicle body of the rail vehicle Measure the impedance between the skin shielding layer and the body grounding network; measure the stray current on the skin shielding layer; measure the stray current of the busbar in the body grounding network. By measuring the impedance of the skin shielding layer, measuring the impedance of the body grounding network, measuring the impedance between the skin shielding layer and the body grounding network between adjacent bodies, measuring the impedance of the skin shielding layer The measurement of the stray current on the vehicle body and the measurement of the stray current of the busbar in the vehicle body grounding network can effectively obtain the parameters of the key parts related to the shielding and grounding performance of the rail vehicle. Using these obtained parameters, the shielding and grounding performance of rail vehicles can be effectively evaluated.
Description
technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a method for measuring electrical performance of rail vehicles. Background technique [0002] For current rail vehicles, there are technologies that utilize carbon fiber composite materials as rail vehicle machining components. However, the electrical conductivity of carbon fiber composite materials is many orders of magnitude lower than that of metal materials such as stainless steel or aluminum alloy. The shielding and grounding function weakening caused by the change of the car body material from metal to carbon fiber composite materials will affect the electromagnetic field of the rail vehicle. Compatibility has a negative impact. [0003] Therefore, for the current rail vehicle manufacturing technology, corresponding measurement methods are urgently needed to evaluate the shielding and grounding performance of rail vehicles made of carbon fiber composite materials. ...
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IPC IPC(8): G01R31/00G01R31/52G01R27/20G01R1/18
CPCG01R31/008G01R31/52G01R27/205G01R27/20G01R1/18
Inventor 丁叁叁宋旭鹏宋显刚郑凯高玉龙
Owner CRRC QINGDAO SIFANG CO LTD