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电传动机车控制电路具有电器元件多、线路复杂的特点,所以其接地故障历来被机务运用部门认为是电气部分十分棘手的故障之一。从美国GE公司进口的ND_5型机车,除具有电传动机车控制电路的一般特点外,和国产电传动机车相比,又增加了布线更为复杂,电子元件多等新的特点。因此,控制电路接地点查寻难度大的问题在ND_5型机车上表现得尤为突出。作者根据实用原则,针对ND_5型机车新的特点,引入新的概念,参照以往国产机车控制电路接地点的查寻经验,提出了一套系统的
Electric drive locomotive control circuit with electrical components, complex lines, so its ground fault has been the locomotive operation has been considered as the electrical part of the very difficult one of the problems. In addition to the general characteristics of the electric drive locomotive control circuit, the ND_5 locomotive imported from GE Company of the United States has also added new features such as more complicated wiring and more electronic components than domestic electric locomotives. Therefore, the control circuit grounding point difficult to find the problem in the ND_5 locomotive performance is particularly prominent. According to the practical principle, the author introduces a new concept for the new features of the ND_5 locomotive, and proposes a set of system based on the search experience of the grounding point of the locomotive control circuit in the past.