Feasibility of Living Monitoring EPR DC Cable Based on Different DC Current Method
In the paper, firstly, the insulation aging and insulation cut or crack fault models of DC feeder cable were established; then according to the characteristics of electrical and loads of DC feeder cable, the Rail-Voltage law and different DC current law were purposed in the orbital theory, and the feasibility of purposed law were discussed from engineering view. The results of analysis show that the Rail-Voltage law could not be carried out in real project, because there were lots of interferences and could not be separated; and the different DC current law meets the real projection request and could be carried out. Lastly, simulation tests were done to investigate the effectiveness of different DC current law to detect the cable faults in the Laboratory. The results of experiment show that the different DC current law had great limitations on detecting insulation cut or crack fault of DC feeder cable, and the effectiveness was impacted by the environment especially soil moisture. Another law should be found to living detect the insulation cut or crack fault of EPR DC cable.
EPR cable insulation aging insulation crack living monitoring different DC current law
Xiaojun Shen Yicheng Zhang Qingmei Shi Li Wei
Department of Electrical Engineering, Tongji University, Shanghai, 200092, China School of Shuli, North China Electrical Power University, Beijing, 102206, China
国际会议
哈尔滨
英文
313-316
2009-07-19（万方平台首次上网日期，不代表论文的发表时间）