Results 11 to 20 of about 36,138 (282)

Measurement of resistance temperature characteristics of graphite based flexible grounding body with current heating voltammetry

Xi'an Gongcheng Daxue xuebao, 2022
The resistance temperature characteristics and thermal stability of graphite based flexible grounding materials were studied. With the method of current heating and constant temperature protection, the resistance of grounding body at each temperature was
HU Songjiang, CHEN Sifu, LIU Liqin, LI Fulei, DING Weidong, WANG Yang, CAO Wen   +6 more
doaj   +1 more source

Evaluation principle and method of horizontal grounding electrode based on time‐varying impedance

IET Science, Measurement & Technology, 2021
The length of the horizontal grounding electrode is usually extended to decrease the impulse grounding resistance. In this paper, the mechanism for influencing the effective length is revealed by studying the dispersal process of a horizontal electrode ...
Xiaobin Cao, Ming Wei, Manxiang Wang, Jiacai Liu, Ruifang Li, Lin Yang   +5 more
doaj   +1 more source

Hazard evaluation of ground potential difference within grounding grid on personal safety under impulse current

IET Science, Measurement & Technology, 2021
Due to the impedance characteristic of conductor, the ground potential rise is different within grounding grid when impulse current is injected. When staff touches objects with different GPR at the same time, the GPD will be applied to human body ...
Chun Li, Xishan Wen, Lei Guo, Jiafeng Chen, Jiahao Chen, Hailiang Lu   +5 more
doaj   +1 more source

Analysis on frequency and impulse characteristics of grounding grid

The Journal of Engineering, 2019
Studying the frequency and impulse characteristics of grounding grids is of great reference value for the optimal design of the substation. As the frequency increasing, the variation trend of the grounding resistance under different conditions is not ...
Mengmeng Su, Yanhua Lin, Zhizhong Li, Sen Wang   +3 more
doaj   +1 more source

Effect of Ground Electrodes on the Susceptibility to Damage of Customer Premises Equipment (CPE) under Impulse Conditions

Energies, 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.
Usman Muhammad, Normiza Mohamad Nor, Annuar Mohd Ramli, Nurul Nadia Ahmad   +3 more
doaj   +1 more source

Monte Carlo evaluation of the impact of subsequent strokes on backflashover rate [PDF]

, 2015
The paper deals with the impact of subsequent strokes on the backflashover rate (BFR) of HV overhead transmission lines (OHLs), assessed by means of an ATP-EMTP Monte Carlo procedure.
Gatta, Fabio Massimo, Geri, Alberto, Lauria, Stefano, Maccioni, Marco   +3 more
core   +1 more source

Characteristics of Two Ground Grid Potentials After a Triggered Lightning Stroke

IEEE Access, 2020
It has been determined that the discharge of lightning current to ground through grounding grid results in high potential at the grounding grid and other nearby grounding grids, which is very destructive.
Xu Yan, Yijun Zhang, Shaodong Chen, Sai Du, Weitao Lyu, Lyuwen Chen   +5 more
doaj   +1 more source

Investigations on the Performance of Grounding Device with Spike Rods (GDSR) with the Effects of Soil Resistivity and Configurations

Energies, 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.
Abdul Wali Abdul Ali, Nurul Nadia Ahmad, Normiza Mohamad Nor, Nur Farahi Idris, Farhan Hanaffi   +4 more
doaj   +1 more source

Analysis of grounding system transient with consideration of soil ionization and mutual coupling effect

Journal of Electrical Systems and Information Technology, 2023
The grounding system of an electrical substation provides safety to both operator and equipment. The lightning current waveform has a major influence on the dynamic performance of ground electrodes.
Kaushal Pratap Sengar, Kandasamy Chandrasekaran   +1 more
doaj   +1 more source

Analysis of Zinc Oxide (ZnO) Surge Arrester Connected to Various Ground Electrodes

Energies, 2021
This paper presents impulse tests results on a zinc oxide (ZnO) surge arrester connected to four ground electrodes, with its resistance values ranging from 17 Ω to 104 Ω.
Hanis Hamizah Hizamul-Din, Normiza Mohamad Nor   +1 more
doaj   +1 more source