Fault location techniques for power transmission lines based on measurement of fault quantities
Sieci elektroenergetyczne w przemyśle i energetyce. SIECI 2000. IV Konferencja naukowo-techniczna
Overview of fault location techniques for HV (EHV) transmission lines as well as for distribution networks is presented. Distinctive features of fault location algorithms for both applications are discussed. One-end and two-end fault location for traditional uncompensated transmission lines is considered first. The presented two-end fault location is based on unsynchronised measurements at the line terminals. Then the technique with phase co-ordinates approach is utilised for locating faults in series-compensated networks. A single line and parallel lines with series capacitor compensation are considered. Problems encountered in fault location in distribution networks are discussed and the solutions are indicated. Results of large ATP-EMTP testing and evaluation of accuracy of the fault location algorithms are reported and discussed.
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