Results 231 to 240 of about 264,326 (272)

Fault line selection based on improved grey relation analysis of zero-sequence transient current in small current grounding system

2011 International Conference on Consumer Electronics, Communications and Networks (CECNet), 2011
Analysis of the existing methods for fault line selection and the characteristics of zero-sequence transient current in small current grounding system, a novel fault line selection method based on grey relation analysis is proposed. The difference between fault line and normal lines is distinguished by the relation degree of the zero-sequence transient
Chen Chunyu, Xin Jian, Wang Yangyang
exaly   +4 more sources

Research on fault line selection of distribution network system based on zero sequence transient current

2020 7th International Forum on Electrical Engineering and Automation (IFEEA), 2020
In order to improve the accuracy of the single-phase grounding fault line selection method of the distribution network, the paper analyzes the characteristics of the transient current component after fault, and proposes A fault line selection method based on the initial fault angle, which combines the zero sequence transient capacitive current method ...
Ren Hongtao, Zhang Ying
exaly   +4 more sources

Detection of the faulted network element using frequency spectrum features of zero-sequence current under transient earth faults in the network with neutral grounding through Peterson-coil

2016 Third International Conference on Electrical, Electronics, Computer Engineering and their Applications (EECEA), 2016
The paper analyzes the amplitude-frequency spectra of zero-sequence current in the network with neutral grounding through Peterson-coil under transient earth faults. As the assumed equivalent circuit contains elements with linear current-voltage characteristic, harmonic components of the spectrum are calculated separately for discharge current of the ...
E.A. Moldovanova, R.A. Vainshtein, V.V. Shestakova   +2 more
exaly   +4 more sources

Fault Line Selection of Resonant Grounding System Using Transient Zero-sequence Current Waveform Characteristics

2022 International Conference on Computer Network, Electronic and Automation (ICCNEA), 2022
Ying Zhang, Wenquan Shao
exaly   +4 more sources

Zero sequence currents in AC lines caused by transients in adjacent DC line

IEEE Transactions on Power Delivery, 1988
The cause of large zero-sequence transients in AC lines caused by transients in a neighbouring earth-return DC circuit is discussed. Both a qualitative reasoning and a quantitative parametric study are provided. The results show that very large transients can occur even for lines relatively far apart.
N. Chopra, A.M. Gole, J. Chand, R.W. Haywood   +3 more
openaire   +2 more sources

Faulty feeder selection simulation based on transient zero sequence current in non-solidly grounded network

2006 China International Conference on Electricity Distribution (CICED 2006), 2006
A simulation model of non-solidly grounded system with arc procedure is presented in the paper. Simulating calculation and analysis on different fault conditions is carried out totally by using electromagnetic transient program (EMTP). By deeply analyzing the simulation data and waveform, we get the following conclusions: detection method based on ...
null Xinhui Zhang, null Zhencun Pan, null Yongduan Xue   +2 more
openaire   +2 more sources

Study and modeling of zero sequence current sensors in the transient modes in Matlab

2014 Tenth International Vacuum Electron Sources Conference (IVESC), 2014
Vladimir D. Lebedev, Vladimir A. Shuin, Galina A. Filatova   +2 more
openaire   +2 more sources