目前,北京型内燃机车已成为我段主型机车之一。该机车在轮检时,经常发现电器回路绝缘低或接地问题。经分路查找绝缘低或接地部位,大都发生在ZQF—46型启动辅助发电机附加极绕组。由于该电机绝缘程度不符合要求,(一般运用机车用500VMΩ,表测其绝缘应≮1MΩ),在车上又无法处理,只能从车上 At present, Beijing diesel locomotive has become one of the main sections of the locomotive. The locomotive inspection in the wheel, often found that the electrical circuit insulation or low ground problems. The branch to find low insulation or grounding parts, mostly occurred in ZQF-46 auxiliary starter auxiliary windings. As the degree of motor insulation does not meet the requirements, (general use of locomotives with 500VMΩ, the table should be measured insulation ≮ 1MΩ), can not handle in the car, only from the car