Results 71 to 80 of about 248 (107)
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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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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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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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A new method and instrument for touch and step voltage measurements
IEEE Transactions on Power Delivery, 1994This 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 +2 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), 2002This 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
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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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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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Conservative measurements of touch and step voltages by auxiliary electrodes at reduced distance
2014 IEEE Industry Application Society Annual Meeting, 2014Protection 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 +4 more
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A Thevenin equivalent approach for touch voltage and step voltage
2000This 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 +2 more
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