Results 1 to 10 of about 265,532 (259)
Monitoring, Detection and Locating of Transient Earth Fault Using Zero-Sequence Current and Cable Screen Earthing Current in Medium Voltage Cable and Mixed Feeders [PDF]
Energies, 2022 This paper presents the final development of an expert system utilizing a measurement of cable screen earthing transient current. The developed system allows for identification and location of earth fault in underground cable and mixed lines (underground
Krzysztof Łowczowski, Bartosz Olejnik
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Gong-kuang zidonghua, 2022 At present, most of the research on underground power supply system grounding fault positioning in coal mine adopts the transient method, which needs to collect zero sequence voltage and zero sequence current of the line at the same time.
OUYANG Min +10 more
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Zhongguo dianli, 2022 Aiming at the low accuracy problem in line selection of two-point grounding faults on same phase in distribution network, a new fault feeder identification method suitable for two-point grounding faults on same phase in resonant grounding systems is ...
Yingtong LIU +3 more
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电力工程技术, 2023 With the improvement of the requirements for the safe operation of distribution network lines, the harmonics injected by distributed power generation make the existing line selection methods ineffective, and the fault line selection method with a single ...
LI Yan +4 more
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IET Generation, Transmission & Distribution, 2021 Neutral non‐effectively grounded mode is widely used in medium‐voltage distribution networks in China. When a single‐phase grounding fault occurs in distribution networks, abundant transient signals will be generated.
Wenhao Wu +4 more
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Energies, 2021 We developed an International Electrotechnical Commission (IEC) 61850-based centralized protection scheme to prevent single line-to-ground (SLG) faults in the feeders and busbars of ungrounded distribution systems.
Soon-Ryul Nam +4 more
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Electrical engineering & Electromechanics, 2020 Introduction. A significant proportion of earth faults in medium voltage networks represents a short-lived and transient process. Problem. In such cases, earth fault protection that responds to steady-state current and voltage is not able to operate ...
V. F. Syvokobylenko, V. A. Lysenko
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Journal of Modern Power Systems and Clean Energy, 2021 Secondary earth faults occur frequently in power distribution networks under harsh weather conditions. Owing to its characteristics, a secondary earth fault is typically hidden within the transient of the first fault.
Shu Zhang +3 more
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Optical evidence for adsorption of charged inverse micelles in a Stern layer [PDF]
, 2020 Understanding the properties and behavior of nonpolar liquids containing surfactant and colloidal particles is essential for applications such as electrophoretic ink displays and liquid toner printing.
Beales, Graham +7 more
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Compensation of Distribution System Voltage using DVR [PDF]
, 2002 A dynamic voltage restorer (DVR) is a power-electronic controller that can protect sensitive loads from disturbances in the supply system. In this paper, it is demonstrated that this device can tightly regulate the voltage at the load terminal against ...
Ghosh, Arindam, Ledwich, Gerard
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