Results 1 to 10 of about 4,781,950 (259)

Analysis of Fault Characteristics of Distribution Network with PST Loop Closing Device under Small Current Grounding System [PDF]

open access: goldEnergies, 2022
With the rapid development of cities and the increasing complexity of distribution network systems, the cableization of transmission lines and the diversification of power users have brought new challenges to the supply reliability of distribution ...
Zhi Xu   +6 more
doaj   +3 more sources

MODERNIZATION OF THE COMPLEX TYPE IK-1U FOR MEASURING THE IMPEDANCE OF THE GROUNDING DEVICE OF A LIGHTNING ARRESTER AND SUPPORTS OF TRANSMISSION LINES

open access: goldElectrical engineering & Electromechanics, 2019
Purpose. The creation of a measuring device for determining the impedance of the grounding of lightning arresters and supports of overhead lines under the influence of aperiodic pulses with the parameters 1.2/50 μs, 8/20 μs and 10/350 μs.
D. G. Koliushko   +3 more
doaj   +4 more sources

EXPERIMENTAL SUBSTANTIATION OF THE CALCULATION PROCEDURE OF NORMALIZED PARAMETERS OF GROUNDING DEVICE BASED ON THE THREE-LAYER SOIL MODEL

open access: goldElectrical engineering & Electromechanics, 2018
Purpose. Experimental substantiation of the possibility of using the calculation procedure of normalized parameters grounding devices on the basis of a three-layer model soil. Methodology.
D. G. Koliushko, S. S. Rudenko
doaj   +4 more sources

A TECHNIQUE OF FULL-SCALE MEASUREMENTS OF THE RESISTANCE OF THE GROUNDING DEVICE

open access: goldElectrical engineering & Electromechanics, 2018
Purpose. The measurements of the resistance of grounding devices for various purposes using a three-electrode installation under real conditions are considered. Methodology.
I. V. Nizhevskyi, V. I. Nizhevskyi
doaj   +4 more sources

REQUIREMENTS FOR DEVICES FOR VERTICAL ELECTRICAL SOUNDING OF SOIL AT DIAGNOSTICS OF GROUNDING DEVICES

open access: goldElectrical engineering & Electromechanics, 2016
Purpose. Creation the scientific requirements for technical characteristics of equipment for vertical electrical sounding based on the electrophysical characteristics of the soil of energy objects with the different voltage classes. Methodology.
S. S. Rudenko
doaj   +6 more sources

Simulation and Experiment Analysis of 10 kV Flexible Grounding Device

open access: yesInformation, 2021
The traditional 10 kV distribution network grounding system has some disadvantages, such as small grounding current and poor arc extinguishing effect, thus, hindering the detection of high-resistance grounding fault.
Mengxuan Liu, Chi Zhang, Kangli Liu
doaj   +2 more sources

Research on impulse impedance model and protection optimization of transmission tower grounding device in mountainous area

open access: yesIET Science, Measurement & Technology, 2021
The impulse impedance of the tower is the core parameter to evaluate the lightning protection performance of the transmission line. The high soil resistivity and the underground rock layers in the mountainous areas will induce large impulse impedance and
Lin Huang   +5 more
doaj   +2 more sources

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

open access: goldEnergies, 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   +4 more
openalex   +2 more sources

Novel Method for Comprehensive Corrosion Evaluation of Grounding Device

open access: yesIEEE Access, 2020
Tower grounding device provides the discharging channel for fault currents, ensuring the safe and reliable operation of transmission lines. However, the carbon steel tower grounding device is prone to corrosion, which affects the discharging performance ...
Zhanlong Zhang   +5 more
doaj   +2 more sources

Electromagnetic Ultrasonic Shear-Horizontal Wave to Detect Corrosion Defect of Flat Steel for Grounding Device of Transmission Pole Tower [PDF]

open access: goldApplied Sciences, 2023
Detecting defects in grounded flat steel is essential for ensuring the safety and reliability of transmission tower grounding devices. However, traditional inspection methods, such as physical excavation and verification, are costly and time-consuming ...
Chunhua Fang   +5 more
openalex   +2 more sources

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