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Fault Location for Small Current Grounding System Based on Injection Method
2021This paper introduces the single-phase grounding fault line selection and location protection of small current grounding system based on “S injection method”. When the power failure occurs, the insulation recovery and location of the protection are difficult. A new localization method is proposed.
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A New Evaluation System Method for Small Current Grounding Line Selection Device
Advanced Materials Research, 2014Abstract: The evaluation of small current grounding line selection device plays an important guiding part in fault diagnosis and device promotion. But the current methods focus on the evaluation of individual indicator and can not form systematic evaluation of the programs.This paper firstly makes use of AHP method to evaluate small current grounding ...
Jin Long Zhou, Jin Ling Lu, Chao Xu
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Graphical-Based Modeling Simulation System of Small Current Grounding Fault Location
2011 International Conference on Computational and Information Sciences, 2011In order to narrow the scope of line maintenance inspection, locate the fault line of grid quickly, we put forward the concept of optimal distribution of line into segments, with the figure and the tree structure methods to represent and process the distribution information of line. By analyzing the ungrounded single-phase power grid failure mechanism,
Guping Zheng, Xueying Liu, Xin Lu
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A Fault Section Location Method for Small Current Grounding System Based on HHT
2018 China International Conference on Electricity Distribution (CICED), 2018A fault section location method for small current grounding system based on Hilbert-Huang Transform (HHT) is proposed. When a single-phase grounding fault occurs in the distribution network, the transient zero sequence current uploaded by the FTU on the feeder is decomposed by empirical mode decomposition (EMD) to obtain a limited number of intrinsic ...
Jianwen Zhao +5 more
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Fault location of small current grounding system based on transient recorded wave data
2020 International Conference on Virtual Reality and Intelligent Systems (ICVRIS), 2020The steady-state characteristics of the small current grounding system are not obvious, which leads to the low accuracy of the fault location results. Simplify the small current grounding system, analyze the transient recording data, and study the transient distribution characteristics of each component in case of fault.
Yongqian Zhang +5 more
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Analysis and Application of Small Current Grounding System Transient Based on Mathematical Models
2010 International Conference on Electrical and Control Engineering, 2010The single-phase grounding fault line selection in the distribution network has always been an outstanding problem of power system relay protection. One of the key reasons for fault line selection difficulty is that the fault current is correspondingly too weak to be detected effectively for the small current grounding system which is widely adopted in
Huang Zhiqin, Cui Shenjun
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Single-Phase Ground Fault Detection of Small Current Grounding System Base on Wavelets Analysis
2013In order to improve the accuracy of line selection and reduce the possibility of single-phase ground fault in small current grounding system, this chapter solved two key problems including exploring the fault information of transient signals as much as possible and extracting the characteristic component of transient signals. This chapter proposed that
Huanghuang Liu, Qianjin Liu
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Simulation on Faulty Line Selection of Small Current Grounding System Based on Wavelet Transform
2010 Asia-Pacific Power and Energy Engineering Conference, 2010A method of single phase ground fault line selection in distribution networks with the application of wavelet transform technique is presented in this paper. The modulus maxima of the wavelet transform are extracted to determine the moment of the single phase ground fault.
Xinyu Dou, Chunming Li
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Design of Small Current Grounding Fault Line Selection System
2023 3rd International Conference on Energy Engineering and Power Systems (EEPS), 2023Shengzhu Li +4 more
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The Analysis, Modeling, and Capabilities of Grounding System Designs
IEEE Transactions on Industry Applications, 2022S A Saleh, D Jewett, Sérgio Panetta
exaly