Results 251 to 260 of about 105,717 (288)

A new method and instrument for touch and step voltage measurements

IEEE Transactions on Power Delivery, 1994
This paper describes a new method and instrument for measuring touch and step voltages near a grounding system, for example in and around a substation. The hardware, software, and testing procedures are an extension of the smart ground multimeter, developed under EPRI sponsorship.
A.P.S. Meliopoulos, S. Patel, G.J. Cokkinides   +2 more
openaire   +1 more source

Evaluation of mesh and touch voltage at substations

IEE Proceedings - Generation, Transmission and Distribution, 2002
Site tests, to measure the voltages on the surface of the ground above a grid for comparison with calculated values, are only of general interest if the ground has uniform resistivity at and below the grid. However, such conditions rarely if ever exist so the only practical alternative way of obtaining general data is to make tests on model grids in a ...
openaire   +1 more source

Effect of compression ratio on touch voltage in layered soil

2014 6th IEEE Power India International Conference (PIICON), 2014
This 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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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), 2000
With 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, GRASSELLI, Umberto, IACONELLI R.   +2 more
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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 dangerous
E.S. Safiyev , S.Y. Shikhaliyeva
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Conservative measurements of touch and step voltages by auxiliary electrodes at reduced distance

2014 IEEE Industry Application Society Annual Meeting, 2014
Protection against electric shock requires grounding systems that must be designed primarily to keep touch voltage and step voltage below a safe value. The measurement of the ground resistance in a large grounding network requires to place current electrodes at adequate distances.
PARISE, Giuseppe, MARTIRANO, Luigi, PARISE, LUIGI, CELOZZI, Salvatore, ARANEO, Rodolfo   +4 more
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Measurement of touch voltage in electrical installations, in TN system, in low voltage earth fault

Proceedings of 8th Mediterranean Electrotechnical Conference on Industrial Applications in Power Systems, Computer Science and Telecommunications (MELECON 96), 2002
This paper explains two new methods for the measurement of touch voltage, in TN power systems, under low voltage earth faults. After some general considerations of standard measurements, as a consequence of direct experiences and tests, two new methods (voltage drop and volt-amperometric) have been studied as an alternative to the method which foresees
A. Corvino, A. Maurella
openaire   +1 more source

DC Railway System Emulator for Stray Current and Touch Voltage Prediction

IEEE Transactions on Industry Applications, 2015
A 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, Ali Elrayyah, Yilmaz Sozer, Alex De Abreu   +3 more
openaire   +1 more source

A Thevenin equivalent approach for touch voltage and step voltage

2000
This paper describes numerical algorithm for accurate computing of the touch voltage and step voltage. The algorithm is based on the Thevenin equivalent and grid model of the human's feet.It is practically to use this accurate approach only for some very important points on the earth surface because Thevenin equivalent circuit is valid only for a given
Sarajčev, Ivan, Vujević, Slavko, Kurtović, Mate   +2 more
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Touch voltage is not enough - meeting our duty of care

2016 Down to Earth Conference (DTEC), 2016
The vast majority of engineering design decisions are multivariate, and earthing system design is no exception to the rule. Safety targets are but one dimension, supported beneath by layers of decisions. Additionally many other critical decisions are to be made before an installation may be signed off as being ‘fit for purpose’. Designers, constructors
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