运行中CLX-P型故障探测仪存在的问题及对策

为了提高牵引供电的可靠性,目前大部分牵引变电所装有接触网故障点探测装置。该装置在接触网发生短路故障时,能够准确而迅速地测量出故障点的位置,有利于牵引变电所调度员尽快寻找故障点,及时更换设备,排除故障。以电气化铁路京郑线运行的CLXP型故障控测仪为例,分析了其测量的基本原理,阐述了在实际线路中牵引网阻抗分段计算的方法,探讨了造成其指示不准确的原因,并进一步提出了切实可行的改进措施和办法。

Problems and solutions of the CLX-P type malfunction detector in operation

To improve the reliability of the traction power supply, most traction transformer substations are currently equipped with contacting system malfunction detector. This equipment can find out the location of malfunction accurately and rapidly when the contacting system has short circuit problems. It can help the dispatcher in traction transformer substations to find out malfunction as soon as possible, to replace the facilities in time, and to eliminate the malfunction. This paper,taking the instance of CLX-P type malfunction detector operating on Jing-Zheng railway, analyses the fundamental principals of measurement, elaborates the subsection calculations of electrical network impedance, probes in the reasons that cause the indication improper, and finally puts forward feasible improved measurements and methods.