Zobrazeno 1 - 10
of 115
pro vyhledávání: '"high impulse conditions"'
Publikováno v:
Electrical Engineering. Sep2017, Vol. 99 Issue 3, p1005-1011. 7p.
Akademický článek
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Publikováno v:
Energies, Vol 11, Iss 11, p 3187 (2018)
This paper investigates the factors affecting the impulse characteristics of purposely built grounding systems. We installed 2 m × 2 m grounding systems in four different sites with different soil resistivity values. The effect of impulse polarity o
Externí odkaz:
https://doaj.org/article/b00768b8d4ad4f5d8eac8a4381c65e16
Autor:
REFFIN Muhd Shahirad, MOHAMAD NOR Normiza, ABDUL RAHMAN Nurul Azlina, ABDULLAH Noradlina Abdullah, HATTA Norhasliza
Publikováno v:
Journal of Electrical and Electronics Engineering, Vol 16, Iss 2, Pp 31-34 (2023)
It has been well accepted that under high impulse conditions, ionisation process in soil would occur, causing the ground resistance value to fall to a lower value than that obtained at low voltage low current, RDC. Factors affecting the percentage of
Externí odkaz:
https://doaj.org/article/71034f7dc9944e8b84d2d24b929fbddd
Conference
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Publikováno v:
Journal of Physics: Conference Series. 1878:012018
There have been many studies in the pasts, which showed that under high impulse conditions, soil ionization process around the electrode would occur, which results in lower resistance and lower transient voltage on the electrode. Several factors have
Publikováno v:
Electrical Engineering. 99:1005-1011
In a previously published work, performances of three practical earthing systems consists of 2, 3 and 4 rod-bed electrodes buried at the same site, thus the same soil resistivity were investigated. It was found that the degree of reduction of the ear
Autor:
N. Nor
Publikováno v:
2006 IEEE 8th International Conference on Properties and applications of Dielectric Materials.
Several models of earthing systems under high impulse conditions, which are in satisfactory agreement to the experimental results, have been proposed in previous studies [1-11]. However, these models do not consider for the effects of current rise ti
Publikováno v:
2006 IEEE 8th International Conference on Properties and applications of Dielectric Materials.
The study on the physics of discharges in soil and performance of earthing networks subjected and obtain better electrical models of earthing systems. In this study, the characteristics of medium grain size sand of different moisture contents and imp
Autor:
N. Nor
Publikováno v:
2006 IEEE 8th International Conference on Properties and applications of Dielectric Materials.
To date, there is no data describing the characteristics of enhancement materials mixed with soils under impulse conditions are published. In this research, it is aimed to investigate the characteristics of enhancement materials, copper sulphate (CuS