On the Transient Response and the Frequency Analysis of Transmission Line Towers

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="874647.fig.008a" src="https://static.hindawi.com/articles/isrn/volume-2013/874647/figures/874647.fig.008a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Tower response to 7 equidistant lightening pulses with pulse rate corresponding to the first parallel resonance frequency 1170 kHz  (time scale: 2000 divisions = 20 <svg height="12.125" id="M124" style="vertical-align:-3.50804pt" version="1.1" viewbox="0 0 8.8249998 12.125" width="8.8249998" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,7.7)"><path d="M498 54l10 -26q-13 -16 -37 -28t-48 -12q-31 0 -52 21.5t-26 56.5h-2q-69 -78 -134 -78q-52 0 -81 42h-4v-16q-1 -56 12 -141.5t25 -117.5l-13 -12q-16 1 -39.5 14t-35.5 25q-2 7 -2 259v294q0 60 -3 96l81 18q2 -23 2 -105v-171q0 -65 27.5 -94t63.5 -29q56 0 100 53
v328l80 18v-335q0 -70 41 -70q17 0 35 10z" id="x3BC"></path></g>
</svg>s)</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="874647.fig.008b" src="https://static.hindawi.com/articles/isrn/volume-2013/874647/figures/874647.fig.008b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Tower response to 7 equidistant lightening pulses with pulse rate corresponding to the first series   resonance frequency 2110.2 kHz (time scale: 2000 divisions = 20 <svg height="12.125" id="M125" style="vertical-align:-3.50804pt" version="1.1" viewbox="0 0 8.8249998 12.125" width="8.8249998" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,7.7)"><path d="M498 54l10 -26q-13 -16 -37 -28t-48 -12q-31 0 -52 21.5t-26 56.5h-2q-69 -78 -134 -78q-52 0 -81 42h-4v-16q-1 -56 12 -141.5t25 -117.5l-13 -12q-16 1 -39.5 14t-35.5 25q-2 7 -2 259v294q0 60 -3 96l81 18q2 -23 2 -105v-171q0 -65 27.5 -94t63.5 -29q56 0 100 53
v328l80 18v-335q0 -70 41 -70q17 0 35 10z" id="x3BC"></path></g>
</svg>s)  </td></tr></table></td></tr></table>

<table>Tower response to 7 equidistant lightening pulses with pulse rate corresponding to the first parallel resonance frequency 1170 kHz ((a) upper plots) and the first series resonance frequency 2110.2 kHz ((b) lower plots).</table>

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Figure 8

Figure 8: On the Transient Response and the Frequency Analysis of Transmission Line Towers 