Results 261 to 270 of about 1,180,561 (320)
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Research on the influence factors of lightning overvoltages of UHVDC grounding electrode lines
Workshop on Automated Control for Datacenters and Clouds, 2020At present, the insulation design of the grounding electrode line is mainly based on 《the technical code for design of HVDC earth return operation system》 issued in 2014.
L. Zhang, W. Shi, Tao Lei, Y. Yin, T. Lu
semanticscholar +1 more source
Lightning surge response of ground electrodes
IEEE Transactions on Power Delivery, 1989Experimental and analytical evidence shows that lighning surge currents ionize the air in the soil. This ionization process tends to increase the contact area of the electrode with surrounding material. The larger area results in lower resistance and less voltage stress per unit current.
William A. Chisholm, Wasyl Janischewskyj
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Measures to Solve the Effect of HVDC Grounding Electrode Current on Metal Pipelines
2020 4th International Conference on HVDC (HVDC), 2020The DC current injected into the earth from the grounding electrodes of HVDC system could flow into the oil and gas pipelines through their grounding, lead to high pipe-to-soil potential.
Y. Liao +5 more
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Integration of Energy Balance of Soil Ionization in CIGRE Grounding Electrode Resistance Model
IEEE Transactions on Electromagnetic Compatibility, 2018Mehrdad Mokhtari, Gevork B Gharehpetian
exaly +2 more sources
Corrosion assessment of a ground electrode in contact with ground enhancing compounds
2010 30th International Conference on Lightning Protection (ICLP), 2010Although a ground enhancing compound of a grounding system main purpose is to discharge electrical current to ground, however, it overlooks the fact that it can suffer chemical degradation due to the contact of the ground electrode with the compound, as the latter is not a chemically inert material.
Galvan, Arturo +2 more
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IEEE Transactions on Power Delivery
The HVDC project is the backbone of new energy power transmission in the new power system and the key technology to realize the “double carbon” goal. When the HVDC system uses the earth as the loop path, DC current from the grounding electrode will be ...
Xiaobo Meng +3 more
semanticscholar +1 more source
The HVDC project is the backbone of new energy power transmission in the new power system and the key technology to realize the “double carbon” goal. When the HVDC system uses the earth as the loop path, DC current from the grounding electrode will be ...
Xiaobo Meng +3 more
semanticscholar +1 more source
IEEE International Conference on High Voltage Engineering and Application, 2020
In order to study the transient characteristics and distribution of earth potential of the grounding device of the transmission tower when lightning strikes the transmission line, the field measurement of the high-voltage transmission towers selected in ...
Wei Li +5 more
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In order to study the transient characteristics and distribution of earth potential of the grounding device of the transmission tower when lightning strikes the transmission line, the field measurement of the high-voltage transmission towers selected in ...
Wei Li +5 more
semanticscholar +1 more source
Impulse characterization of ground electrodes
2014 International Conference on Lightning Protection (ICLP), 2014In this paper, an analysis of the experimental results on the impulse behaviour of grounding electrodes is presented. The parameters used for analyzing transient performance are reviewed and differences highlighted based on test data. The analysis is extended to (i) quantify the effect of impulse shape, (ii) quantify the effect of electrode length ...
N. Harid +4 more
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Step Voltage Calculation Above the Horizontal Grounding Electrode
2024 9th International Conference on Smart and Sustainable Technologies (SpliTech)The paper deals with the step voltage calculation for the case of the simple grounding system (horizontal grounding electrode) injected with the fault current.
V. Dorić, D. Poljak, Ljubomir Hrboka
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Characteristics of Grounding Impedances of Carbon Compound Grounding Electrodes
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2011This paper presents characteristics of frequency-dependent grounding impedance and transient grounding impedance for the carbon compound grounding electrode used in the installation of computerized electronic equipment and lightning protection system.
Kang-Soo Lee, Bok-Hee Lee
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