城市轨道交通弓网燃弧检测与分析

Inspection and Analysis on Arcing between Pantograph and Catenary in Transit

弓网燃弧对城市轨道交通弓网系统和列车运行安全造成严重危害。文章通过对弓网燃弧光谱的提取与分析,研制了基于特征紫外光和光子计数技术的弓网燃弧检测系统。检测结果表明:该系统能有效实时检测弓网燃弧状态;燃弧状态与列车速度相关,速度越大,燃弧率和燃弧强度越大。

Through extraction and analysis of the spectrum of pantograph and catenary arcing, the paper studies and develops pantograph and catenary arcing detection system based on UV light features and photon counting technologies. The test results show that the system can effectively make real-time detection on pantograph and catenary arcing state. Pantograph and catenary arcing state is associated with train speed, the greater the speed is, greater the rate of arcing and arcing strength will be.