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Within the Wavelet Transform (WT), time and frequency information can be measured simultaneously. This eases the detection of high-frequency transients generated by faults on transmission lines. This paper presents a new single-ended fault location method using WT to capture the fault generated transients and to locate the fault point. The proposed method uses the difference of travelling wave arrival...
This paper presents a comparative lightning performance study conducted on a 275 kV double circuit shielded transmission line using two software programs, TFlash and Sigma-Slp. The line performance was investigated by using both a single stroke and a statistical performance analysis and considering cases of shielding failure and backflashover. A sensitivity analysis was carried out to determine the...
In this paper, an investigation of current distribution on tower lines under lightning and power frequency fault conditions is carried out. An equivalent circuit model of a 400 kV double-circuit transmission line was established using EMTP and two models of differing complexity were developed. The power-frequency earth fault was simulated by short circuiting one phase conductor to the earth wire while...
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