Research on the Arc at the Electrical Segmentation of Overhead Contact System in Electrified Railway Hub Areas
The electrical segmentation of the overhead contact system at Fuyang Hub on the Beijing Kowloon Line mainly adopts two forms:segmented insulators and anchor joints.During long-term operation,it was found that the pantograph of the Fuyang hub electric locomotive ignited violently when passing through the electric section,even causing current increment protection action and equipment damage,which had a huge impact on the transportation order.In this paper,a deep analysis was conducted on the process of the pantograph passing through the electric section to identify the relationship between arcing and traction load current,and to determine that the electric section between different switching stations is a location with frequent occurrence of severe arcing.The design scheme was explored,and an optimized design scheme was proposed to reduce the impact of arcing.
万方数据
维普
