接触网动态检测与电磁兼容

介绍了在接触网动态检测中检测拉出值、导高、硬点和接触压力等参数时采用的新技术,并根据电磁兼容原理,分析影响接触网检测的电磁兼容问题,提出了在大地与屏蔽电缆间接入铁氧体磁环,抑制开关电源的干扰;采用计算机接地;选用铝合金作封装电路板的屏蔽材料;使用屏蔽电缆接头;采用光纤传输信号解决电磁兼容问题的技术方案。

Introduces the new technologies for inspection of stagger, height of contact wire, hard point and contact pressure in dynamic inspection of OCS, analyzes the electromagnetic compatibility issues on the inspection of OCS, proposes the technical plan for connection of ferrite bead between earth and shielding cable to control the interference from the power supply for the switches, earthing of computer, selection of alnico as the shielding material for capsulated circuit board, adopting the shielded cable joint and settling the electromagnetic compatibility by means of optical fiber transmitted signal.