Results 41 to 50 of about 5,027 (160)
Research on Distribution Characteristics of DC Potential Near the UHVDC Grounding Electrode
IEEE Access, 2020 The rated current of ±800kV Ultra High Voltage Direct Current (UHVDC) Transmission system can be up to 6250A, so that the influence of the DC grounding current of electrode is enormous.
Jianhong Hao +3 more
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Evaluation principle and method of horizontal grounding electrode based on time‐varying impedance
IET Science, Measurement & Technology, 2021 The length of the horizontal grounding electrode is usually extended to decrease the impulse grounding resistance. In this paper, the mechanism for influencing the effective length is revealed by studying the dispersal process of a horizontal electrode ...
Xiaobin Cao +5 more
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Ensuring the reliability of energy systems through the application of a new method for introducing soil-replacement mixtures during the installation of deep grounding devices [PDF]
E3S Web of ConferencesThis paper discusses a method for using mixtures to optimize the electrical parameters of grounding devices during the installation of vertical composite ground electrodes.
Pavlovich Ivan +3 more
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A TLM‐Based Surge Analysis of Grounding Electrodes
Electrical Engineering in Japan, 2012 SUMMARYIn this paper, representations of a perfectly conducting thin wire and an imperfectly conducting medium in the transmission line modeling (TLM) calculation are briefly explained. Then, the method is applied to analyzing surge responses of a vertical parallelepiped grounding electrode and a square‐loop grounding electrode.
Yuda, Shinsuke +3 more
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Contact impedance of grounded and capacitive electrodes [PDF]
Geophysical Journal International, 2013 The contact impedance of electrodes determines how much current can be injected into the ground for a given voltage. If the ground is very resistive, capacitive coupling may be superior to galvanic coupling. The standard equations for the impedance of capacitive electrodes assume that the halfspace is an ideal conductor.
Andreas Hördt +2 more
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Observation Research on the Effect of UHVDC Grounding Current on Buried Pipelines
Energies, 2019 In order to research the electromagnetic interference in buried oil and gas pipelines generated by the grounding current of a grounding electrode of Ultra High Voltage Direct Current (UHVDC) system, observation experiments of stray current and pipe-to ...
Lianguang Liu +4 more
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THE EXPERIMENTAL VALIDATION OF THE GROUNDING DEVICE RESISTANCE MEASUREMENT METHOD
Electrical engineering & Electromechanics, 2016 Purpose. The paper considers experimental research of three-electrode units for measuring the resistance of grounding devices for different purposes. Methodology. The experimental study of the method of resistance measurement of grounding devices for any
I. V. Nizhevskyi +2 more
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Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2011 A method for calculation of electromagnetic parameters of single vertical grounding electrode of finite length has been developed. The results of mathematical simulation of electromagnetic parameters of the stated grounding electrodes are presented in ...
D. A. Gerasimovich, A. A. Dziaruhina
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IEEE AccessThe performance of electrical power systems relies on a healthy and properly functioning grounding network. Buried vertical electrodes are the pillars of a grounding system. This paper presents a Time Domain Reflectometry (TDR) technique based on surface
A. K. M. Monsurul Alam +2 more
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Advances in Electrical and Computer EngineeringWith urban land resources becoming increasingly scarce, transmission corridors are often situated close to substations and buildings. When a transmission tower is struck by lightning, the resulting transient current enters the ground through the ...
ZHANG, J., CAO, W., HU, S.
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