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一、概述 ND_5机车在我段运用已五年多,总的看来牵引电动机自身的可靠性与国内运用的其他电传动机车(不论是进口的还是国产的)的牵引电动机相比是比较高的,最近两年的故障在0.05件/十万公里以下。但故障隐患不可忽视:①电机引出线的磨损。尤其是第一、四电机引出线悬空部位交叉重叠,导线自磨与互磨较严重,绝缘磨损后,易造成电机短路、接地故障。例:1990年1月28日,0190机车第四电机的“A”与“AA”导线绝缘互相磨破发生短路,两根导线在摩擦处
First, an overview ND_5 locomotive in my segment has been used for more than five years, the overall view of the reliability of the traction motor itself and the domestic use of other electric drive locomotive (whether imported or domestic) traction motor is relatively high The breakdown of the last two years is below 0.05 pieces / 100,000 kilometers. However, hidden faults can not be ignored: ① motor lead wire wear. In particular, the first and fourth motor leads dangling overlapping parts of the cross, the wire from the grinding and grinding each more serious, wear insulation, easy to cause the motor short circuit, ground fault. Example: January 28, 1990, 0190 locomotive fourth motor “A” and “AA” wire insulation wear and tear each other short circuit occurs, the two wires in the friction