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Lightning Impulse Performances of Grounding Devices Covered With Low-Resistivity Materials
IEEE Transactions on Power Delivery, 2006The low-resistivity material (LRM) is widely used to decrease the power-frequency grounding resistances of grounding devices for transmission lines in the regions with high soil resistivity. The study about the influence of the LRM on impulse performances of grounding devices cannot be found in literature.
Jinliang He, Rong Zeng
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2021 13th International Conference on Measuring Technology and Mechatronics Automation (ICMTMA), 2021
The reliable grounding of equipment in the power system is the key to ensuring the safe operation of equipment. The grounding resistance of grounding devices, especially the impulse grounding resistance, determines the overvoltage protection of equipment and the lightning protection of transmission and distribution lines.
Peng Long
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The reliable grounding of equipment in the power system is the key to ensuring the safe operation of equipment. The grounding resistance of grounding devices, especially the impulse grounding resistance, determines the overvoltage protection of equipment and the lightning protection of transmission and distribution lines.
Peng Long
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2021 13th International Conference on Measuring Technology and Mechatronics Automation (ICMTMA), 2021
The reliable grounding of equipment in the power system is the key to ensuring the safe operation of equipment. The grounding resistance of grounding devices, especially the impulse grounding resistance, determines the overvoltage protection of equipment and the lightning protection of transmission and distribution lines.
Peng Long
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The reliable grounding of equipment in the power system is the key to ensuring the safe operation of equipment. The grounding resistance of grounding devices, especially the impulse grounding resistance, determines the overvoltage protection of equipment and the lightning protection of transmission and distribution lines.
Peng Long
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2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE), 2020
Accurate measurement of the impulse grounding resistance of the grounding device is important and necessary for ensuring the reliability of the power system. Existing research shows that the impulse grounding resistance is related to the impulse current waveform.
Xiaobin Cao, Ruifang Li
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Accurate measurement of the impulse grounding resistance of the grounding device is important and necessary for ensuring the reliability of the power system. Existing research shows that the impulse grounding resistance is related to the impulse current waveform.
Xiaobin Cao, Ruifang Li
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2016 19th International Symposium on Electrical Apparatus and Technologies (SIELA), 2016
The flow of the lightning current through the grounding grids of electrical substations produces impulse processes in the soil. The authors have developed a simulation model of the grounding, considering the wave processes. To expand the model, determination of the maximum possible touch voltage in these processes have to be done.
Marinela Yordanova +2 more
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The flow of the lightning current through the grounding grids of electrical substations produces impulse processes in the soil. The authors have developed a simulation model of the grounding, considering the wave processes. To expand the model, determination of the maximum possible touch voltage in these processes have to be done.
Marinela Yordanova +2 more
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Deviation Analysis of Impulse Grounding Resistance Based on Impulse Coefficient
2023 International Conference on Power Energy Systems and Applications (ICoPESA), 2023Hongtao Ren
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Electrical Engineering in Japan (English Translation of Denki Gakkai Ronbunshi), 1996
AbstractThis paper describes a newly developed impulse voltage generator (IG). It has the following features: (1) The IG consists of three components (a 1.6 MV unit, a 1.4‐MV unit and a base box); this facilitates mounting on 10‐ton trucks, therefore making it easier to move to a test field.
Shozo Sekioka
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AbstractThis paper describes a newly developed impulse voltage generator (IG). It has the following features: (1) The IG consists of three components (a 1.6 MV unit, a 1.4‐MV unit and a base box); this facilitates mounting on 10‐ton trucks, therefore making it easier to move to a test field.
Shozo Sekioka
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Calculation of Impulse Grounding Resistance of Extended Grounding Electrode
, 2013 In order to calculate the impulse grounding resistance of extended grounding electrode accurately, this paper introduces a method for computing the impulse grounding resistance based on the spark discharge characteristic of the earth, using a nonlinear differential circuit model. The relation curves of impulse grounding resistance with the current peak
Anqi Shangguan
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Experimental Investigation of Impulse Resistance of Different Type Grounding Electrodes
2020 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon), 2020 When spreading large pulsed currents in the soil, the electrical properties of the soil, as well as the characteristics of grounding, may differ significantly from the values obtained when spreading a weak stationary current. This is due to the ionization of the soil near the electrode and the formation of spark channels, which leads to a noticeable ...
V.V. Ivonin
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On the Analysis of Impulse Test Results on Grounding Systems
IEEE Transactions on Industry Applications, 2015 In this paper, an analysis of experimental results on the behaviour under impulse currents of various grounding electrodes: rod and horizontal electrodes, a ground grid and tower footings is presented.
N Harid, D Clark, S Robson
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