基于射频技术的电缆局部老化故障自动定位方法

Automatic localization method for local aging of cables based on radio frequency technology

针对传统的故障自动定位方法精准度差这一问题,提出了一种新的定位方法,引用射频技术。首先设计了电缆定位通道,在电缆左侧和右侧设定两个通道,然后通过传感器迫使电缆发电,记录电缆电磁波在静态和动态状态下运行的波形,将两个波形联合,找到故障点,该点即为电缆局部老化区域,最后与传统方法进行了实验对比。结果表明,基于射频技术的电缆局部老化故障自动定位方法能够在短时间内完成更加精准的定位,耗时短、效率高、成本低,具有很好的发展前景。

Aiming at the problem of poor accuracy of traditional automatic fault location methods,a new location method is proposed,which uses radio frequency technology.Firstly,the cable positioning channel is designed,and two channels are set on the left and right sides of the cable.Then the sensor forces the cable to generate electricity,and the waveform of the cable electromagnetic wave in static and dynamic state is recorded.Combining the two waveforms to find the fault point,this is the local aging area of the cable.Finally,the fault point is carried out with the traditional method.The results show that the method based on RF technology can locate the local aging faults more accurately in a short time,with short time-consuming,high efficiency and low cost,and it has a good development prospect.