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SS_3型电力机车在各牵引电动机支路设线路接器1～6xc,它确保在调压开关回“0”前断支路,使位置开关在1～6xc断开后转换,有效地避免了由于电机剩磁所引起的不良后果。但SS_3型机车线路接触器由于自身的原因在各运用段都发生了线路接触器烧损的惯性故障。我段自89年3月SS_3型机车投入运用至90年5月共烧损线路接触器108个,直接经济损失近10万元,严重影响了机车的正常运用。一、通过分析我们认为线路接触烧损的原因为如下三个方面 1.线路接触器动、静触头片采用铜质固定螺栓,其抗拉强度小,在动触头的闭合冲击力的作用下引起拉伸变形,使紧固的触
SS_3 electric locomotive in each traction motor branch line connector 1 ~ 6xc, it ensures that the pressure switch back to “0” off the branch, so that the position switch in 1 ~ 6xc disconnect after the switch, effectively avoiding due to Motor residual magnetization caused by the adverse consequences. However, SS_3 locomotive line contactor due to its own reasons in the operation section of the line contactor burning inertia failure occurred. I segment since March 89 SS_3 locomotive put into use in May 90 were burning a total of 108 lines contactor, the direct economic loss of nearly 100,000 yuan, seriously affecting the normal operation of the locomotive. First, by analyzing the reasons we believe that the line contact burning for the following three aspects: 1. Line contactor dynamic and static contact with copper bolts, the tensile strength is small, the role of the dynamic contact closure impact Tensile deformation caused under, so that the fastening touch