Results 171 to 180 of about 422 (208)
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Attribute selection for fault location recognition in transmission lines
2006 IEEE Power Engineering Society General Meeting, 2006After a severe disturbance due to an insulation failure in a transmission line, the precise fault location is a critical problem for the maintenance crew. In order to avoid further economical and social costs, fault diagnosis has to be performed as soon as possible.
S.M. de Souza +2 more
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A new principle of fault line selection for distribution
7th International Conference on Developments in Power Systems Protection (DPSP 2001), 2001Fault line selection is important to maintenance and normal operation of power distribution system. If a fault does not disappear for a long time, it could develop into a phase to phase fault. Then the fault line should be found out as quickly as possible and the fault should be removed.
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Line Selection in Active Fault Zones and Meizoseismal Areas
2017This chapter discusses the spatial distribution of the Kunlun Mountain, Bengcuo, and Yambajan–Damxung–Gulu seismotectonic zones and explains the relationship between active faults and earthquakes, which can severely damage railway structures. The line selection and engineering properties of the Qinghai–Tibet Railway in high-intensity earthquake zones ...
Jincheng Li, Wenwu Chen, Zhengping Liu
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High-speed faulted-phase selection algorithm for transmission line protection
2013 26th IEEE Canadian Conference on Electrical and Computer Engineering (CCECE), 2013A new faulted-phase selection algorithm for non-unit transmission line protection scheme is presented in this paper. The proposed algorithm employs the current signal from only one phase of three-phase system. A short time window of roughly two milliseconds is used for determining the faulted phase involved in single-phase to ground faults, so the ...
Fabian Perez +3 more
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Fault line selection for single-phase earthed fault based on injected active component
2011 International Conference on Electrical and Control Engineering, 2011Concerning the current situation of fault line selection of single phase earthed fault in small-current grounded system, plus with analysis of the advantage and disadvantage of currently used in line selection techniques, a method which makes use of neutral point resistant to discriminate the fault line and the normal line during the single-phase ...
Ying Zhang, Huifen Zhang
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A New Strategy Based on Feature Selection for Fault Classification in Transmission Lines
2016The transmission lines are the element most susceptible to faults on power systems, and the short circuit faults are the worst type of faults than can happen on this element. In order to avoid further problems due to these faults, a fault diagnostic is necessary, and the use of front ends is required.
Márcia Homci +7 more
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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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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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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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