Results 251 to 260 of about 18,806 (286)

HVDC Ground Electrode Heat Dissipation

IEEE Power Engineering Review, 1987
The temperature distribution in the soil surrounding High Voltage Direct Current (HVDC) ground electrodes is determined by using a finite-difference method. This, commonly used numerical method of solution, was selected due to its practicability in obtaining engineering solutions involving both complex ground electrode geometries and boundary ...
H. Greiss, B. L. Allen, P. J. Lagace, D. Mukhedkar   +3 more
openaire   +1 more source

Ground-Free ECG Recording with Two Electrodes

IEEE Transactions on Biomedical Engineering, 1980
ECG recordings normally use three electrodes?two for the differential inputs of the ECG amplifier and the third for ground. We analyze those situations where the ground electrode can be eliminated. We propose a model for the source of electrical interference and determine various parameter values.
N V, Thakor, J G, Webster
openaire   +2 more sources

Analytical Modelling of Grounding Electrodes Transient Behavior

IEEE Transactions on Power Apparatus and Systems, 1984
This paper presents the results of analytical and numerical investigations to evaluate the impulse performance of grounding electrodes. Practical grounding electrodes used-for the lightning protection of power and industrigl systems are analyzed through, a comprehensive computer program developed for this purpose.
R. Velazquez, D. Mukhedkar
openaire   +1 more source

Characteristics of Grounding Impedances of Carbon Compound Grounding Electrodes

Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2011
This paper presents characteristics of frequency-dependent grounding impedance and transient grounding impedance for the carbon compound grounding electrode used in the installation of computerized electronic equipment and lightning protection system.
Kang-Soo Lee, Bok-Hee Lee
openaire   +1 more source

Effective length of horizontal grounding electrode

2008 16th International Conference on Software, Telecommunications and Computer Networks, 2008
In this paper, the influences of the length of grounding electrodes on the lightning transient characteristic were analyzed. The effect of effective length of grounding electrodes is demonstrated for 2.6/50 µ s and 4.5/50 µ s time duration of the wavefront. The effect of the soil ionization has been taken into account by dynamic change of the
Jurić-Grgić, Ivica, Lucić, Rino, Ljubičić, Dragan   +2 more
openaire   +3 more sources

Recognition of electrocardiographic electrode misplacements involving the ground (right leg) electrode

The American Journal of Cardiology, 1993
Abstract Accurate electrocardiographic (ECG) interpretation by computer or manually requires that the electrocardiogram be recorded with all electrodes in proper positions. All possible electrode placement errors involving the active limb electrodes (right and left arm, and left leg) have been described.
W K, Haisty, O, Pahlm, L, Edenbrandt, K, Newman   +3 more
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Lightning response of grounding electrodes

2020
A 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 ...
openaire   +1 more source

Analysis on Common Ground Electrode Technology

2006 International Conference on Power System Technology, 2006
Techniques 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, 1966
The 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
openaire   +1 more source

Grounding Characteristic Analysis of Plate Electrodes

Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2007
In 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
openaire   +1 more source