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针对东风4 型机车的牵引特点 ,实施对其进行双机重联的技术改造方案 ,以满足重载牵引运输的需要。文中介绍了机车电气系统和制动系统的改造以及操作应用情况。
In view of the traction characteristics of DF4 locomotive, the technical reconstruction scheme of double-machine reconnection is implemented to meet the needs of heavy-haul traction transportation. The paper introduces the transformation of locomotive electrical system and brake system as well as the operation and application.