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2017 2nd IEEE International Conference on Integrated Circuits and Microsystems (ICICM), 2017
In order to study the influence of vertical grounding electrode on impulse grounding resistance of substation ground network, the grounding model was built in COMSOL, and the impulse grounding resistances of substation grounding grid in different distribution, length and quantity of vertical grounding electrode were simulated and calculated.
Lijun Zhou, Han Xu
exaly +2 more sources
In order to study the influence of vertical grounding electrode on impulse grounding resistance of substation ground network, the grounding model was built in COMSOL, and the impulse grounding resistances of substation grounding grid in different distribution, length and quantity of vertical grounding electrode were simulated and calculated.
Lijun Zhou, Han Xu
exaly +2 more sources
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 +5 more
exaly +2 more sources
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 +5 more
exaly +2 more sources
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.
Qiu-ye Cai +4 more
exaly +2 more sources
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.
Qiu-ye Cai +4 more
exaly +2 more sources
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
exaly +2 more sources
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
exaly +2 more sources
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
exaly +2 more sources
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
exaly +2 more sources
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
exaly +2 more sources
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
exaly +2 more sources
Impulse Characteristics of Ground Electrodes in Low Resistivity Soil
IEEJ Transactions on Electrical and Electronic Engineering, 2023Soil properties have been known to be the factors that influence the ionization process in soil, which cause the impulse impedance, Zimpulse to be lower than that at steady state resistance, RDC. Many studies have established the relationship between the percentage reduction of Zimpulse from RDC in such that the percentage reduction is more pronounced ...
Mohamad Nor, Normiza +1 more
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The measurement of impulse grounding resistance and inductance of grounding network
Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137), 2002It is well known that accurate measurement of grounding resistance and inductance under impulse voltage is of great importance for safe operation of electrical and electronic equipment. It is the behavior of grounding objects under impulse voltage instead under DC voltage that determine the safe operation of equipment.
null Chen Yunping +2 more
openaire +1 more source