Results 11 to 20 of about 1,180,561 (320)

Helix grounding electrode with good grounding performance [PDF]

open access: yesMATEC Web of Conferences, 2019
Grounding electrode is used for discharging current and ensure the safe and stable operation of electrical equipment. Grounding performance of grounding electrode will degradation with limited installation space.
Zhang Zhanlong   +4 more
doaj   +5 more sources

Analysis of the effect of explosion grounding electrode on grounding resistance reduction

open access: yesThe Journal of Engineering, 2019
Developing cracks in the soil by means of explosions in the holes, as is called the explosion grounding electrode in this study, is a very effective way to reduce the grounding resistance in the area with high resistivity soil.
Yongli Wang   +4 more
doaj   +4 more sources

FEM Analysis and Sensor-Based Measurement Scheme of Current Distribution for Grounding Electrode

open access: yesApplied Sciences, 2020
The current distribution of the grounding electrode in a high-voltage direct current (HVDC) transmission system affects the state of power equipment in its vicinity, which depends on the soil resistivity and shape of the grounding electrode.
Li Zhu   +5 more
doaj   +5 more sources

Onset electric field of soil ionisation around grounding electrode under lightning

open access: yesHigh Voltage, 2020
Onset electric field of soil ionisation is one of the basic parameters to analyse the lightning impulse performance of a grounding electrode, which has been fully investigated based on experiments on hemispherical electrode or rod-to-rod gap.
Bo Zhang, Zhizhong Li, Sen Wang
doaj   +4 more sources

Research on Earth Resistivity Measuring and Modeling of HVDC Deep-Well Grounding Electrode Sites

open access: yesIEEE Access, 2020
HVDC Deep-well grounding electrode covers a small area, which effectively alleviates the problem of difficulty in selecting the site of grounding electrode.
Maoheng Jing   +7 more
doaj   +4 more sources

Corrosion Rate Simulation and Influence Factors of a Vertical DC Grounding Electrode

open access: yesIEEE Access, 2018
Corrosion affects the performance of grounding electrode materials buried in soil and threatens the safe operation of power systems. Natural corrosion of grounding electrode materials occurs over a long time and involves many influencing factors ...
Xuefang Tong   +5 more
doaj   +4 more sources

Interference monitoring and influence rule of HVDC grounding electrode to buried pipelines

open access: yesYou-qi chuyun, 2021
In order to understand the influence rule of the grounding electrode of HVDC transmission engineering on the stray current of buried pipeline, the remote potential monitoring system was equipped for 12 pipelines near the 17 grounding electrodes of HVDC ...
Qinglin GU   +7 more
doaj   +2 more sources

Common-Mode Voltage Reduction in Capacitive Sensing of Biosignal Using Capacitive Grounding and DRL Electrode

open access: yesSensors, 2021
A capacitive measurement of the biosignals is a very comfortable and unobtrusive way suitable for long-term and wearable monitoring of health conditions. This type of sensing is very susceptible to noise from the surroundings.
Tadeas Bednar   +4 more
doaj   +2 more sources

Research on the Interaction Between Multi-Circuit Shared HVDC Grounding Electrodes [PDF]

open access: yes南方能源建设, 2023
[Introduction] Unlike the independent grounding electrode, shared earth electrode is connected to multiple DC (Direct Current) systems, and its parameters and operation mode need to be determined by each system connected to it.
Yu LIU, Wen WANG
doaj   +2 more sources

A DC Bias Current Reducing Method Considering Grounding Electrode Location and Receiving-end Grid Structure

open access: yesZhongguo dianli, 2021
Based on the influence of the receiving-end grid structure and the grounding electrode location on DC bias current, this paper analyzes the DC bias current (DCBC) level of the converter station and the adjacent AC substation in the typical connection ...
Lianguang LIU, Chenglian MA
doaj   +2 more sources

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