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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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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2012
This paper describes the analysis technique of risk voltage around grounding electrode by new touch and step voltage measurement methods. We have analyzed three techniques for risk voltage measurement, such as footprint-electrode method, test-probe method, and simulated-personnel method.
Hyoung-Jun Gil, Hyang-Kon Kim
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This paper describes the analysis technique of risk voltage around grounding electrode by new touch and step voltage measurement methods. We have analyzed three techniques for risk voltage measurement, such as footprint-electrode method, test-probe method, and simulated-personnel method.
Hyoung-Jun Gil, Hyang-Kon Kim
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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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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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New concept for the protection against lightning overvoltages and touch voltages
18th International Conference and Exhibition on Electricity Distribution (CIRED 2005), 2005Overvoltages in electrical supply networks of AC and DC railway networks result from the effects of lightning strokes and switching actions and cannot be avoided. Furthermore, the power supply of electrical railways is endangered by direct or nearby lightning. Considering additional the safety aspects for people (touch voltages) in railway systems, one
M. Brizzi, B. Richter
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A simulation model to estimate touch voltage in DC railway systems
2016 AEIT International Annual Conference (AEIT), 2016The study presents a railway system simulation model aimed to evaluate the safety requirements about touch voltage in the railway lines fed by 3 kV DC. In particular, the model analyses the transient period during a fault and the dynamic behavior of the DC circuit breaker.
Spalvieri, C. +4 more
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Touch voltage is not enough - meeting our duty of care
2016 Down to Earth Conference (DTEC), 2016The 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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Step and touch voltages near wind turbine grounding during lightning strokes
International Symposium on Electromagnetic Compatibility - EMC EUROPE, 2012In this paper we analyze the transient step and touch voltage distributions near wind turbine grounding system in case of direct lightning strokes. Two models of the grounding system geometry are considered: the usual conservative model that takes into account only basic grounding electrodes, and integrated model including foundation reinforcement as a
B. Markovski +2 more
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Online monitoring of substation grounding grid conditions using touch and step voltage sensors
2013 IEEE Power & Energy Society General Meeting, 2012A grounding grid of a substation is essential for reducing the ground potential rises inside and outside the substation during a short-circuit event. The performance of a grounding grid is affected by a number of factors, such as the soil conductivity and grounding rod corrosion.
Xun Long +3 more
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Measurements of touch and step voltages adopting current auxiliary electrodes at reduced distance
IEEE Systems Technical Conference on Industrial and Commercial Power 2005., 2005The measure of the ground resistance in a large grounding network needs placement of current electrodes at a great distance. In urban areas, where buildings' growth is adjacent to a power system, choosing suitable locations for auxiliary electrodes becomes increasingly difficult since rigorous ground resistance measures can impossibly be made.
PARISE, Giuseppe, Mario Lucheroni
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