A Study on Improvement of High Voltage Impulse Track Circuits at the Railway
A track circuit at the railway is consisted of rails, a transmitter, a receiver, and a relay. It mainly detects a train using electrical short-circuits through rails. Once a train enters into the track circuit, it is electrically shorted by axles of the train. However, we used to have a weird phenomenon on the High Voltage Impulse Track Circuit (HVITC). This system is operated by AC400～600V/3Hz. We have studied it in order to figure out the solution of the problem for a year. The biggest problem is that can not recognize the fault states, despite the fact the rail is broken. This study has shown that current HVITC systems can be operated even an ill-contact state of Impedance Bond jumper wire. This study was carried out using various methods, such as measurements using an oscilloscope with voltage and current probes, simulations using PSCAD/EMTDC software tool, and analysis of measured data.
Circuit simulation Current distribution Impedance matching Impulse measurements Oscilloscopes Voltage measurement
K. B. Park T. H. Lee Y. J. Jeon Y. T. Ryu
KORAIL Research Institute, Daejeon Government Complex 139 Seonsa-ro Seogu Daejeon City, 302-701, Korea
国际会议
The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)
沈阳
英文
1-5
2009-07-05（万方平台首次上网日期，不代表论文的发表时间）