Results 271 to 280 of about 1,180,561 (320)
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Analysis of the Ground Impedance of Ground Grids Combined with the Carbon Ground Electrodes
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2013This paper deals with the frequency-dependent ground impedance of ground grids combined with the carbon ground electrodes. Ground grids are generally valid for multipurpose grounding systems as well as lightning protection systems. The carbon ground electrodes may be supplementarily used to reduce the high frequency ground impedance and to improve the ...
Bok-Hee Lee +5 more
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Annual Meeting of the IEEE Industry Applications Society, 2019
In order to increase the reliability of the protection of the grounding electrode line in high-voltage direct current system (HVDC), an improved high frequency current signal injection based protection is proposed.
Yufei Teng, Zhenyuan Zhang, Xiaopeng Li
semanticscholar +1 more source
In order to increase the reliability of the protection of the grounding electrode line in high-voltage direct current system (HVDC), an improved high frequency current signal injection based protection is proposed.
Yufei Teng, Zhenyuan Zhang, Xiaopeng Li
semanticscholar +1 more source
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 +3 more
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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 +3 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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Analysis of Horizontal Grounding Electrode in Transmission Line Approach
International Conference on Communication and Electronics Systems, 2019Understanding impulse response of a buried electrode helps for designing a better grounding system under the situations of surges. In this paper, the analysis of lightning impulse current has been carried on horizontal grounding electrode by varying its ...
Koppakula Nagarjuna, K. Chandrasekaran
semanticscholar +1 more source
Analytical Modelling of Grounding Electrodes Transient Behavior
IEEE Transactions on Power Apparatus and Systems, 1984This 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
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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
Ground-Free ECG Recording with Two Electrodes
IEEE Transactions on Biomedical Engineering, 1980ECG 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
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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
Modelling and design of ground electrodes
2009 International Conference on Power Engineering, Energy and Electrical Drives, 2009This keynote lecture overviews the modeling techniques for computer simulation of ground electrodes behavior, and discusses the design of tower footing and substation grounding systems. Their performance as regards safety as well outage rate is discussed. A comprehensive bibliographical survey is provided.
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