机车辅机保护三相自动开关误动作原因分析  

Analysis on false operation of three-phase automatic switch on electric locomotive

作　　者：言果[1] 杨亚文[1] 

机构地区：[1]株洲电力机车厂,湖南株洲412001

出　　处：《电力机车与城轨车辆》2002年第z1期42-43,共2页Electric Locomotives & Mass Transit Vehicles

摘　　要：针对SS8、SS9型电力机车牵引风机自动开关在试验中出现的常跳故障现象,使用FLUKE199示波表测试了SS90007车第四位通风机的起动电流波形,认定其原因为自动开关动作参数达不到设计要求。Aiming at the break-off frequently fault of traction ventilator automatic switch on type SS 9 electric lo-como tive,the starting current of No.4venti lator has being tested by FLUKE199ScopeMe ter.It is affirmed that the mo tion parameter of this auto matic switch can not satisfy the design demand.

关 键 词：自动开关 电流 特性 故障 参数 

分 类 号：U264.7[机械工程—车辆工程]