Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Nurul Nadia Ahmad"'
Publikováno v:
Energies, Vol 15, Iss 3, p 1247 (2022)
One of the requirements for the safe operation of customer premises equipment (CPE) is an adequate grounding system as a means to divert high fault currents to the ground. In this work we report on the results of an experimental study of the impulse
Externí odkaz:
https://doaj.org/article/5dd507ca6ea548a4acb634af2c99efcf
Autor:
Hanis Hamizah Hizamul-Din, Normiza Mohamad Nor, Nurul Nadia Ahmad, Nur Farahi Idris, Azwan Mahmud
Publikováno v:
Energies, Vol 14, Iss 4, p 1036 (2021)
Experimental work on grounding systems has shown that the characteristics of grounding systems under high impulse conditions are different than those obtained at steady-state conditions. Investigations on the grounding systems under high impulse cond
Externí odkaz:
https://doaj.org/article/5c3aa0a1104f4f15b1cbc2a0f10cd5bb
Publikováno v:
Energies, Vol 13, Iss 18, p 4672 (2020)
The characterizations of grounding systems subjected to high impulse conditions are known to be dependent on the polarity, current to peak time and discharge time, as well as the electrical properties of the soil, and the grounding electrodes themsel
Externí odkaz:
https://doaj.org/article/96f1f0eabe7a4f0cb4ba7008f27c3e8e
Autor:
Abdul Wali Abdul Ali, Nurul Nadia Ahmad, Normiza Mohamad Nor, Nur Farahi Idris, Farhan Hanaffi
Publikováno v:
Energies, Vol 13, Iss 14, p 3538 (2020)
In a recently published work, the characteristics of a new grounding device with spike rods (GDSR) with various arrangements of ground electrodes under high magnitude impulse currents (up to 16 kA), was investigated. In an earlier study, the ground e
Externí odkaz:
https://doaj.org/article/2e2bb6f8b021422c8046de6798962f1b
Autor:
Muhd Shahirad Reffin, Abdul Wali Abdul Ali, Normiza Mohamad Nor, Nurul Nadia Ahmad, Syarifah Amanina Syed Abdullah, Azwan Mahmud, Farhan Hanaffi
Publikováno v:
Energies, Vol 12, Iss 7, p 1334 (2019)
One of the most important parameters of the performance of grounding systems is the soil resistivity. As generally known, the soil resistivity changes seasonally, hence the performance of grounding systems, at DC and under high impulse conditions. Th
Externí odkaz:
https://doaj.org/article/0270cdd4968f4ea1af803e109d703abe
Autor:
Abdul Wali Abdul Ali, Nurul Nadia Ahmad, Normiza Mohamad Nor, Muhd Shahirad Reffin, Syarifah Amanina Syed Abdullah
Publikováno v:
Energies, Vol 12, Iss 6, p 1138 (2019)
In many publications, the characteristics of practical earthing systems were investigated under conditions involving fast-impulse currents of different magnitudes by field measurements. However, as generally known, in practice the transient current c
Externí odkaz:
https://doaj.org/article/d0c7594976af4037b1b1657251c71ddb
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
Akademický článek
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Publikováno v:
2022 57th International Universities Power Engineering Conference (UPEC).
Publikováno v:
2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference (I&CPS).
It has been known that under high impulse conditions, a non-linearity in some practical grounding electrodes, subjected to fast surges was observed. Inductive component can also be significant in grounding electrodes subjected to high impulse conditi