Results 31 to 40 of about 10,043 (293)
Research on Single-Phase Grounding Fault Location Technology
Journal of Physics: Conference Series, 2019 Abstract In view of the complex structure, large scale and high failure rate of distribution network, as well as many branch lines, large transition resistance, difficult to detect fault signals and difficult to locate accurately., A single-phase grounding fault location method based on single-terminal measurement for distribution ...
Zhang Xiping +6 more
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IEEE Access, 2021 Accurate and fast fault detection in transmission lines is of high importance to maintain the reliability of power systems. Most of the existing methods suffer from false detection of high-impedance faults.
Hamid Teimourzadeh +4 more
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Simulation and Research of Non-effectively Grounding Network of Single-phase Ground-fault
IOP Conference Series: Earth and Environmental Science, 2020 Abstract When the non-effectively grounding network of single-phase ground fault happens, the voltage, the current, the zero-sequence voltage and the zero-sequence current have a special change and this problem has been the focus of research attention.
Yunhai Hou, Haoxin Sun, Shuhan Zhang
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Reproduction Methodology for Single Phase-to-Ground Faults in Overhead Transmission Lines
IEEE Access, 2017 Reproducing key fault information quantitatively has practical significance for the fault diagnosis of overhead transmission lines (OLTs). In order to reproduce the key fault information of a single phase-to-ground (SPG) fault, this paper proposes a reproduction methodology based on the waveform inversion theory and the propagation characteristics of a
Hanqing Liang +3 more
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Methods in Single Phase to Ground Faults on Power Distribution Systems [PDF]
Journal of Engineering and Applied Sciences, 2019 This study highlights the main contributions for the single phase to ground faults on distribution networks field throughout a last three decades from classic methods to heuristic methods. The surveys about 76 papers that are published in the field, the quantity of existing methods for each method is determined and categorized.
Soomro, Dur Muhammad +2 more
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Continuous comprehensive line selection technology based on D-S evidence theory
Energy Reports, 2022 Aiming at the single-phase grounding fault in 380 V three-phase AC power system with ungrounded neutral, a fault line selection method considering zero sequence current ratio method, zero sequence current phase ratio method and dual frequency method is ...
Kechang Dai, Zhihao Ye, Liang Chen
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Frontiers in Energy Research, 2023 The traditional method of detecting fault current based on threshold judgment method is limited by the current size and is easily disturbed by noise, and it is difficult to adapt to the arc ground fault detection of the distribution network.
Yihui Wu +5 more
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Simulation and analysis of single-phase grounding fault in small current grounding system
Journal of Physics: Conference Series, 2019 Abstract The characteristics and distribution of single-phase grounding faults in small current grounding system are not easy to capture, and it is not easy to collect and cover all possible situations in operation site. This paper builds a fault simulation model of distribution network based on PSCAD.
Jinwei Fu +3 more
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Archives of Electrical Engineering, 2020 When a single line-to-ground fault occurs in the ungrounded distribution system, the steady-state fault current is relatively small for fault analysis and the transient fault current is observable, which can be used for faulted feeder identification and ...
Ling Liu
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Ground Fault Protection Using Open Break Delta Grounding Transformer in Ungrounded System
Logic, 2019 One of the most common and difficult problems to solve in distribution power systems is the location and elimination of the ground fault. For the study of an electrical distribution network in ungrounded system operating at 20 kV on the primary and 380 V
Supriyanto Suhono +2 more
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