Accuracy verification of new fault location method for medium voltage distribution networks

摘要

A new method for fault location in distribution networks is described and results obtained during its verification are presented. The basic principle of the tested method is introduced at the beginning. Then the scale model of 22 kV power line used for verification together with verification measurements and fault calculation are described. After that the fault location calculation based on the simulation results is presented. Both results are compared and evaluated. The final part of the paper describes how the wave propagation speed could be calculated and how its value affects the accuracy of the method.