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KITAK, P.
STEP VOLTAGE DETERMINING BY USING DIFFERENT PROGRAM TOOLS
KOMUNALNA ENERGETIKA / POWER ENGINERING, 25
For the earth rod three processes of the potentials calculations on the ground surface are presented. On the base of potential difference the step voltage is determined. Theoretical calculation of potential distribution can be applied according some assumptions and simplifications. For complex earthing systems a software tool based on an analytical approach of solving the grounding systems can be used (e.g. WinIGS software tool). Third approach is based on a numerical process on finite elements method that enables more complex analysis of potential distribution on the surface and below the surface inhomogeneous earth. For this approach some measures will be shown which reduce the step voltage.

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