Results 11 to 20 of about 664 (264)

Tower-Footing Resistance and Lightning Trip-outs of 150 kV Transmission Lines in West Sumatra in Indonesia

MATEC Web of Conferences, 2018
The trip-out rates calculated by taking account of the reduction in the tower-footing resistance due to the ionizing effect agree well with the observed ones.
Warmi Yusreni, Michishita Koji
doaj   +2 more sources

INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID

Electrical engineering & Electromechanics, 2015
Introduction. Earthing device electrical substation in modern conditions must meet both the requirements of electrical safety of people and animals, as well as electromagnetic compatibility requirements established her electrical equipment.
V. I. Nizhevskyi, I. V. Nizhevskyi, B. Ynoyatov, S. Nasryddyny   +3 more
doaj   +4 more sources

Impulse Characteristics of Grounding Resistance of Counterpoise

IEEJ Transactions on Power and Energy, 2001
Toshio Sonoda, Shozo Sekioka, Naoto Nagaoka, Akihiro Ametani   +3 more
openaire   +3 more sources

Transient impedance of grounding system with impulse superimposed sinewave

ENP Engineering Science Journal, 2021
Investigating the transient performance of grounding systems subject to lightning (impulse or impulse superimposed sinewave) is valuable for protecting the power system and maintaining the system operation.
Sherif Ghoneim, Ahdab Elmorshedy, Rabah Amer   +2 more
doaj   +1 more source

Simulation Study on Lightning Impulse Characteristics of Flexible Graphite Composite Grounding Materials Applied to Grounding Grid of Power System

Frontiers in Energy Research, 2022
The flexible graphite composite grounding electrode is a non-metallic grounding electrode with good electrical conductivity, corrosion resistance and non-ferromagnetic properties.
Yuanchao Hu, Tao Huang, Yunzhu An, Jianyuan Feng, Meng Cheng, Hongping Xie, Wentao Shen, Changqing Du   +7 more
doaj   +1 more source

Comprehensive evaluation of corroded grounding electrodes considering the impulse characteristics

Frontiers in Materials, 2023
The grounding electrodes are buried in a harsh soil environment, which will cause corrosion. Corroded grounding electrodes directly affect the safe and stable operation of the power system.
Xuemeng Wang, Lan Xiong, Zhanlong Zhang, Yihua Dan, Jun Deng   +4 more
doaj   +1 more source

Measurement and analysis of impulse grounding impedance of tower grounding device subjected to artificial lightning M‐component

IET Generation, Transmission & Distribution, 2023
The impulse grounding impedance of tower grounding device is one of the important factors in the lightning protection evaluation of transmission line. The impulse characteristic test of the actual tower grounding device under lightning was rarely carried
Yi Zhang, Hansheng Cai, Ruihan Qi, Taishan Hu, Lei Jia, Gang Liu, Yongcong Wu, Shangmao Hu   +7 more
doaj   +1 more source

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

DataSheet1_Comprehensive evaluation of corroded grounding electrodes considering the impulse characteristics.docx

, 2023
The grounding electrodes are buried in a harsh soil environment, which will cause corrosion. Corroded grounding electrodes directly affect the safe and stable operation of the power system.
Jun Deng (239794), Zhanlong Zhang (14758306), Yihua Dan (14758309), Xuemeng Wang (3117015), Lan Xiong (213879)   +4 more
core   +1 more source