Results 281 to 290 of about 1,028,893 (322)
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2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia), 2019
In order to improve the fault monitoring performance of grounding electrode lines in high voltage DC (HVDC) transmission systems, a new grounding electrode line protection based on multi-band voltage amplitude integration is proposed in this paper ...
Y. Zhuang +3 more
semanticscholar +1 more source
In order to improve the fault monitoring performance of grounding electrode lines in high voltage DC (HVDC) transmission systems, a new grounding electrode line protection based on multi-band voltage amplitude integration is proposed in this paper ...
Y. Zhuang +3 more
semanticscholar +1 more source
Performance Analysis of the ELIS system for UHVDC Grounding Electrode Line under Line Break Faults
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia), 2019Electrode line impedance supervision (ELIS) is an important device which can monitor the operation state of grounding electrode line of UHVDC. The performance of ELIS directly affects the real-time perception of grounding electrode line.
Xiaopeng Li +4 more
semanticscholar +1 more source
Simulation Analysis of Earth Surface Potential Distribution in ±800kV HVDC Ring Grounding Electrode
2019 14th IEEE Conference on Industrial Electronics and Applications (ICIEA), 2019This paper analyzes the regularity of ±800kV HVDC grounding current dispersal in 3 common types of circle Grounding Electrodes by simulating the earth surface potential(ESP) distribution.
Hanwu Luo +5 more
semanticscholar +1 more source
Lightning response of grounding electrodes
2020A grounding electrode consists of any buried metallic body responsible for dispersing current to the soil. The specific application has significant influence on the electrodes' arrangement and dimension. The arrangement can vary from a simple rod, connected to the transformer of a distribution line, to horizontal electrodes buried about 0.5 m deep in ...
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Analysis on Common Ground Electrode Technology
2006 International Conference on Power System Technology, 2006Techniques of one ground electrodes shared by two DC transmission systems (which called common ground electrode) are blanks in our country now. In this paper, a common ground electrode used in Yunnan-Guangdong DC transmission system and Guizhou-Guangdong II DC transmission system is presented.
H. Chen, B. Sun, J. He, X. Dong
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Direct Current Ground Electrode Behavior
IEEE Transactions on Power Apparatus and Systems, 1966The conducting of moderately high direct current through earth between variously sized electrodes installed in different types of soil has provided test data which, while in general agreement with expectations [1]-[3], places much more emphasis on the electrode-to-earth contact area than had been necessary in past designs, which were primarily used for
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Grounding Characteristic Analysis of Plate Electrodes
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2007In this study, an experiment on the efficient construction method of plate electrodes, the influence of electric potential interference in plate electrodes, and building foundations were explored. The experimental result of the electric potential measurement was taken on the basis of the direction of movement and the condition in which the plate ...
Sung-Sam Kim, Ju-Chan Kim, Hee-Seog Koh
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Design Considerations of HVDC Grounding Electrodes
2005 IEEE/PES Transmission & Distribution Conference & Exposition: Asia and Pacific, 2005Design considerations of HVDC grounding electrode are discussed in this paper. The main topics covered in this paper are: (1) How incorrect soil resistivity measurements lead to design flaws; (2) How different types of grounding electrodes influence the leakage current distribution; (3) How different soil structures influence the grounding electrode ...
null Jinxi Ma, F.P. Dawalibi, W. Ruan
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Electric Field of Horizontal Grounding Electrodes
2019 International Symposium on Lightning Protection (XV SIPDA), 2019In this paper the electric field spatial distribution in the soil, generated by electric currents in horizontal electrodes, is calculated and analyzed. Two soil models are adopted; one considering constant electrical parameters and another that considers its variations with frequency. Two values of low-frequency soil resistivity are considered: one low
Marco Aurélio O. Schroeder +4 more
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Impulse performance of ground electrodes for increasing number of rod electrodes
2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE), 2020This paper presents experimental results of three electrode's configurations, 1-rod, 2-rod and 3-rod electrodes. A high impulse current generator is employed to inject different magnitudes of current into these rod electrodes. The effect of increasing number of rod electrodes on the voltage and current waveforms, time to peak current, discharge time ...
Abdul Wali Abdul Ali +2 more
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