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Single-Phase Ground Fault Traveling Wave Line Selection Method and Line Selection Device Field Test
2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2), 2018In this paper, the grounding line selection technology is applied to the field. Under a substation model, the SL-0l grounding line selection device is used for small current system, and multiple tests are carried out in the field, and the corresponding waveform analysis is carried out.
Shuping Liang, Zikun Zhang
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A novel fault line selection method of resonant grounding system
2017 IEEE Conference on Energy Internet and Energy System Integration (EI2), 2017In order to solve the problems of fault line selection in resonant grounding system, a novel fault line selection method for distribution network was proposed in this paper. First, continuously measure three-phase voltage and zero-sequence voltage, which detects single-phase ground fault.
Yongjun Yuan +5 more
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The Summarization of Fault Line Selection of Small Current Grounding System
Applied Mechanics and Materials, 2014With the development of power technology and the improvement of reliability of power supply of power user requirement, small current grounding system become the main grounding mode of distribution network. Small current grounding power system fault line selection is always one of the puzzles in medium voltage distribution network relay protection ...
Zhi Xia Zhang, Zhi Lei Wang, Kun Li
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Research on Wavelet Transformation for Fault Line Selection of Distribution Network
2020 5th International Conference on Power and Renewable Energy (ICPRE), 2020Single-phase ground fault is one of the main reasons in distribution network fault. The fault line selection is the key step of fault location. In this paper, Db4 transform is used to decompose and reconstruct the fault bus zero-sequence voltage and the zero-sequence current of each feeder in five layers, which respectively extracts the high-frequency ...
Yang Wang +4 more
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Fault line selection based on cross wavelet and Romanovsky Criterion
2019 IEEE 3rd International Electrical and Energy Conference (CIEEC), 2019A fault line selection method for small current grounding systems based on cross wavelet transform (XWT) and Romanovsky criterion is proposed. The transient zero-sequence current of each branch is analyzed by cross-wavelet transform. The characteristic time-frequency window with significant correlation is adaptively determined according to the cross ...
Jianwen Zhao +4 more
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Fault Phase Selection Method for Half-Wavelength Transmission Lines
2019 IEEE 3rd International Electrical and Energy Conference (CIEEC), 2019In this paper, a novel faulted phase selection scheme is proposed for time delay longitudinal protection and distance protection applied to half-wavelength power transmission lines. The authors describe the principle of a faulted phase selection scheme for half-wavelength power transmission lines using the fault superimposed voltage and current sampled
Yue Li, Zhenyu Xu, Tao Zheng
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Incremental Power Improves Relay Selectivity to Transmission Line Faults
Journal of The Institution of Engineers (India): Series B, 2018A research work published in 2014 reported a novel relaying principle for protection of transmission lines using signum function of instantaneous power flows at the two ends of the line. Subsequently, a detailed study of this relaying principle to evaluate its selectivity (sensitivity to detect all internal faults and stability on external faults and ...
Abdul Waheed Kumar +2 more
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Convolutional Neural Network and Low Current Fault Line Selection
2023 IEEE Sustainable Power and Energy Conference (iSPEC), 2023Li Rong +6 more
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Application of distributed fault line selection device in digital substation
2010 5th International Conference on Critical Infrastructure (CRIS), 2010At present, the small analog signal transmission is adopted between process level and bay level in most of the digital substation systems below 35kV. Considering the characteristic of the structure and the special request for the earth fault line selection device, the design of line selection device is proposed for the digital substations.
null Qi Zheng +2 more
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Faulted Phase Selection for Half-Wavelength Power Transmission Lines
2018 IEEE Power & Energy Society General Meeting (PESGM), 2018In this work, a novel faulted phase selection algorithm is proposed to be used for distance protection applied to half-wavelength power transmission lines. These lines represent an alternating current solution for very-long point-to-point interconnections as an alternative to HVDC.
Renzo G. Fabián Espinoza +1 more
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