Akmaz, DuzgunMamis, Mehmet SalihArkan, MuslumTagluk, Mehmet Emin2019-08-092019-08-092017Akmaz, D . Mamis, MS. Arkan, M. Tagluk, ME. (2017). Fault location determination for transmission lines with different series-compensation levels using transient frequencies.Cilt:25. Sayı:5. 3764- 3775 ss.1300-06321300-0632https://doi.org/10.3906/elk-1606-180https://hdl.handle.net/11616/13359https://search.trdizin.gov.tr/yayin/detay/245906In this paper, based on the theory of traveling waves, the fault distances on long transmission lines with various series-compensation levels are determined using transient current and voltage frequencies. Transmission lines with series compensation are modeled using Alternative Transients Program software with frequency-dependent effects on the line included in the simulation. The transient current and voltage signals are obtained from the model. A fast Fourier transform is used for frequency-domain conversion and fault location is estimated from the frequencies of fault-generated harmonics in the transient spectrum. The algorithm is implemented in MATLAB. To investigate the effect of compensation on accuracy, the results are obtained for different series-compensation levels. The undesirable source-inductance effect is removed and estimation accuracy is further improved using a waveform-relaxation method. The method is found to be successful in determining fault location on series-compensated transmission lines. The effects of the compensation level, fault resistance, and phase angle are investigated.eninfo:eu-repo/semantics/openAccessAlgorıthmspectrumArticle2553764377510.3906/elk-1606-1802-s2.0-85053484439Q3245906WOS:000412571400022Q4