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An alternative approach for touch and step voltages measurement in high-voltage substations
Electric Power Systems Research, 2016Abstract This paper presents the study of a measurement technique for touch and step voltages. In essence, we elaborate an approach which is very similar to the measurement of the grounding system impedance. In addition, the main focus is on the measurements at energized substation where different types of coupling between the test leads, grounding ...
Vojin I. Kostić, Nebojša B. Raičević
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Touch voltages on underground distribution systems during fault conditions
IEEE Transactions on Power Delivery, 1990Underground distribution lines are usually installed in duct banks with manholes placed at regular intervals for easy installation of the line hardware and ready access for maintenance purposes. During work in these manholes, tough voltages may occur on the line under repair as a result of a fault on another line.
Y. Rajotte +3 more
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Analysis of Touch Voltage in TN-S Earthing System
2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2018This paper presents touch voltage analysis in TN-S connected earth system. For this purpose, calculation of touch voltages and touch durations (as per IEEE and International Electrotechnical Committee (IEC) standards) with equivalent formulas is done for different sizes of cable and protective conductor (PE). Cable ampacity calculations for underground
Krishnav Bhatia +2 more
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Measurements of touch and step voltages adopting multi current auxiliary electrodes
Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129), 2000With urban development and buildings growth adjacent to power systems, to choose suitable locations for auxiliary electrodes becomes increasingly difficult for testing the resistance, the touch and step voltages E/sub t/ and E/sub s/ in a grounding system.
PARISE, Giuseppe +2 more
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A Practical Probabilistic Method to Evaluate Tolerable Step and Touch Voltages
IEEE Power Engineering Review, 1984A simplified probabilistic method to calculate the risk of the human body withstand voltage to be exceeded by step and/or touch voltages appearing during abnormal system fault conditions is presented in this paper. The determination of density probability functions and cumulative distributions are done by using characteristic parameters of well known ...
Wen Wang +3 more
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DC Railway System Emulator for Stray Current and Touch Voltage Prediction
IEEE Transactions on Industry Applications, 2015A system to emulate railway dc systems is presented in this paper. The emulator is designed to simulate the behavior of railway systems in terms of stray currents and touch voltages. Power electronics circuits are used as variable resistors to simulate the train motion. The emulator provides a test bed to not only study and analyze the effects of stray
Amr Ibrahem +3 more
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Effect of compression ratio on touch voltage in layered soil
2014 6th IEEE Power India International Conference (PIICON), 2014This paper presents analysis of substation grounding grid using exponentially spaced grid. We have mainly focussed on safety touch voltage criterion for various compression ratios of grid. The grids are analysed for single layer soil model with and without ground rods.
M. G. Unde, B. E. Kushare
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Touch Voltage and Electrical Safety when Maintaining Overhead Power Transmission Lines
Power Technology and Engineering, 2020The problem of electrical safety involving the assessment of hazardous factors during repair of overhead transmission lines is considered. The conditions of occurrence of induced voltages and the characteristics of the sources of transferred potential are analyzed.
M. Sh. Misrikhanov, A. O. Mirzaabdullaev
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TOUCH AND STEP VOLTAGE HAZARD ANALYSIS
This article analyzes the risks associated with electric shock, specifically focusing on the effects of touch and step voltage, which can lead to severe injury or death. Citing international studies, the research confirms that older individuals typically exhibit a body resistance between 1000-2000 Ω, with exposure to 230 V potentially causing dangerousE.S. Safiyev , S.Y. Shikhaliyeva
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Experimental measuring of the touch voltages in large compensated networks
2012 Electric Power Quality and Supply Reliability, 2012A connection between a phase conductor and the ground in MV networks is called earth fault. The fault current in this case does not depend on the point of the fault, but only on the total capacity (size) of a network. Distribution system operator (DSO) sometimes needs to operate the large network which means operating of the network with big capacitive
P. Toman +3 more
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