Analysis and Diagnosis of Shielded Cable Faults Based on Finite-Element Method and Time-Reversal Time-Frequency Domain Reflectometry

Due to the electrical, thermal, and mechanical stress, the insulating materials of cable undergo a slow aging process in service, which leads to the decline of insulation performance. Besides, friction frequently occurs when the cable is moving or vibrating, which will easily cause mechanical damage including frays and chafes. Both aging and damage will cause the characteristic impedance to change...