Cable Fault on-Line Monitoring Based on Transient Traveling Wave Signal Analysis Technology

This paper mainly studies a fault identification and location technology for optical cable lines using transient traveling wave mode maxima method, which mainly includes the following steps: real-time monitoring and synchronous upload of traffic information; Information collection and preservation; Cable fault identification, including: current oscillogram drawing, fractal box dimension calculation, current information space transformation, discrete wavelet transform and wavelet coefficient calculation for flow information in mode space, inspection of maximum point of initial traveling wave mode of flow information, and cable fault identification; Cable fault location, including: drawing of current oscillogram, spatial transformation of current information β The module voltage component and the module voltage component of the flow information on the load side are calculated using discrete wavelet transform and wavelet coefficients. The maximum point of the initial traveling wave mode of the flow information is checked, and the cable fault is located. The technical process of this paper is simple, the calculation method is simple, the accident identification and location efficiency is high, the accuracy is good, the technology is comprehensive, and the application is strong.