DF7G型内燃机车24 V直流开关电源故障原因分析及改进措施  

Cause Analysis and Improvement Measures of DF7G Diesel Locomotive 24V DC Switching Power Failure

作　　者：杨建福 YANG Jianfu(Zhengzhou Locomotive Depot of China Railway Zhengzhou Bureau Group Co., Ltd, Zhengzhou 450000, China)

机构地区：[1]中国铁路郑州局集团有限公司郑州机务段,河南郑州450000

出　　处：《郑州铁路职业技术学院学报》2021年第4期7-8,13,共3页Journal of Zhengzhou Railway Vocational and Technical College

摘　　要：研究2017年发生的35件DF7G型内燃机车24 V直流开关电源故障,结合“人、机、料、法、环”五个方面进行分析讨论,总结影响DF7G型内燃机车开关电源的直接原因,进行技术改进,取得了良好效果。This paper studies the faults of 35 DF7G diesel locomotives′24V switching power in Zhengzhou locomotive depot in 2017,analyzes and discusses from five aspects of"human,machine,material,method and environment",sums up the direct causes affecting the switching power of DF7G diesel locomotives,and carries out targeted rectification,which has achieved good results and achieved the expected purpose.

关 键 词：DF7G型内燃机车 直流24 V开关电源 故障分析 蓄电池 

分 类 号：U262.7[机械工程—车辆工程]