Study on Leakage Current Detection System of the Roof Insulators on the Electric Multiple Unit
EMU roof insulator is an important part of EMU equipment,but also to protect the EMU power supply safety and reliability of the key equipment.However,the increasing atmospheric pollution caused by environmental factors or equipment insulation aging are prone to EMU roof insulators flashover or other problems.If these faults cannot be ruled out in time,it will affect the safe operation of EMUs.In view of this,this article has designed EMU roof insulator leakage current detection system,can judge the insulation status of the roof insulator before rising bow.Taking into account that the normal operation of catenary voltage frequency of 50Hz,the system voltage is 0-60Hz adjustable frequency that can be used to simulate the contact network frequency fluctuations to meet the detection needs of different situations to achieve system flexibility.Also in order to facilitate the driver to observe and find problems in time,choose whether to raise bow,through the detection of hardware systems,software systems for analysis and judgment,the measurement system will be able to achieve intelligent and visualization.
Yun ZHANG Fu-Qiang TIAN
School of Electrical Engineering,Beijing Jiaotong University,Beijing,China
国际会议
上海
英文
356-361
2017-12-30（万方平台首次上网日期，不代表论文的发表时间）