THE ORGANIZATION OF METROLOGICAL CHANNELS FOR FAULT LOCATION ON OVERHEADLINES BASED ON PHASOR MEASUREMENT UNITS

The practical implementation of phasor measurement unit (PMU)-based fault location in high-voltage overhead lines presents a number difficulties including the significant impact DC components current wave-form and residual magnetization transformer. Synchrophasor technology was only meant to capture steady states electromechanical transients. issues mentioned above indicate need for changes synchrophasor-based location. This paper investigates efficiency various configurations purposes an extra-high voltage line using synchrophasor measurements. main goal this research is identify optimal configuration phasor-based assess possibility digital transducers with built-in Rogowski coils reduce effect transformer saturation on accuracy. methodology involves extensive use real-time simulator (RTDS), production-type PMU devices from vendors, signal amplifiers, focus improving accuracy transmission lines. A few well-known double-end methods utilizing different cur-rent are taken numerical experiments. results show importance new paradigm based applying innovative instrument transduc-ers provide input signals applications. clear advantage class-P PMUs connected relay transformers shown. Several channel approaches compared terms their performance context