Variability of measured railway track conductance due to test set-up
DOI:
https://doi.org/10.21014/acta_imeko.v7i4.573Abstract
A previous work, published in ACTA IMEKO journal, pointed out the probable variability in track to ground conductance measurements, performed by using the method indicated in the A.3 of the IEC 62128-2 international standard. In this work the presence of measurement variabilities, due to connection of the negative terminal of the power supply to an earthing electrode instead of the behind section and due to the location chosen for the voltage terminal, were proven by on site measurements. A simulation model, with the inclusion of not ideal soil is proposed and used to estimate the correct value of track to ground conductance from the measured values.
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2019-01-09
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