Results 41 to 50 of about 45,255 (210)
Taiyuan Ligong Daxue xuebao, 2021 The electrical characteristics of a single-phase grounding fault in a low-resistance grounding system was aualyzed, and a fault protection scheme was proposed for low-resistance grounding systems according to the ratio of the zero-sequence current ...
Yuan NIU +4 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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Grounding systems for power supply facilities [PDF]
, 2012 This study aims to define some recommendations for choice of grounding system type for power supply facility. Operating modes of 0.4 kV networks approved by International Electrotechnical Commission (IEC) were considered and their advantages and ...
Amann, P. M. +3 more
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Detection of Cross-Line Successive Faults in Non-Effective Neutral Grounding Distribution Networks
EnergiesIn a non-effectively grounded neutral point distribution network, prolonged feeder operation reduces the insulation level, thereby increasing the likelihood of single-phase grounding faults that can generate over-voltages and eventually lead to ...
Yuxuan Jin +5 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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IEEE Access, 2019 There are some problems existing in the traditional grounding mode of the distribution network. To solve them, this paper proposes a flexible grounding method for neutral point.
Han Zeng +8 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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Single-Phase Grounding Fault Identification Based on Transition Conductance Tracking Method
Mathematical Problems in Engineering, 2022 The instability of single-phase grounding faults makes it difficult to track the fault development process accurately. In this paper, a transition conductance tracking method for single-phase grounding fault identification is established to perceive the health state of the distribution network.
Zhuochao Wu +4 more
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A Single-Phase Grounding Fault Judgment Method Based on Mutation Current Logic Matrix
MATEC Web of Conferences, 2018 In order to solve the problem of single-phase grounding fault judgment in non-solid-earthed distribution network, the power flow in non-solid-earthed distribution is analyzed. A single-phase grounding fault judgment method based on mutation current logic
Xiaobin Wu +3 more
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International White Book on DER Protection : Review and Testing Procedures [PDF]
, 2011 This white book provides an insight into the issues surrounding the impact of increasing levels of DER on the generator and network protection and the resulting necessary improvements in protection testing practices.
Abdulhadi, Ibrahim Faiek +7 more
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