Spatially-resolved Measurement and Diagnostic Method for Power Cables Using Interference Characteristicsof Travelling Waves

In this paper, a new approach of a spatially-resolved diagnostic method for power cables will be briefly introduced. This method uses travelling waves and their interference characteristics to generate specific electrical energy losses inside the test object. The method has been tested in several simulations, which are based on discretized cable models. This is followed by setting up a laboratory test to verify the simulation results. From this set of experiments, the most significant results will be presented in this article. In the described experiments, the proposed approach of a diagnostic method shows local degradations of power cables and coaxial signal cables both in simulation and laboratory measurements, which cannot be detected by established reflectometry methods.