机车过关节式电分相的暂态过程  

The Transient Process While Locomotive Passing the Articulated Phase Insulator

作　　者：马德明[1] 陈晶晶[1] 聂飞[2] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031 [2]铁道第二勘察设计院,四川成都610031

出　　处：《铁道技术监督》2008年第6期47-49,共3页Railway Quality Control

摘　　要：分析了电力机车通过关节式电分相装置时,发生拉弧和过电压现象的故障机理,得出机车断电过分相也会产生拉弧和谐振过电压击穿放电间隙的结论。This paper analyses the mechanism of widening arc and over-voltage which occur when the electric locomotive passes the articulated phase insulator. A conclusion is given that widening arc also exists even if the breaker is off, and resonance over-voltage is the objective factor which breaks the discharge gap down.

关 键 词：关节式电分相 电弧 过电压 暂态过程 

分 类 号：U269.6[机械工程—车辆工程]