Results 1 to 10 of about 301,873 (263)
A New Dual Polarity Direct AC-AC Voltage Regulator Ensuring Voltage Step-Up and Step-Down Capabilities [PDF]
Applied Sciences, 2021 The problem of voltage sag and swell is one of the major reasons for low-quality power in the distribution system. Normally, it results from the system’s faults, including line-to-ground and line-to-line, non-linear characteristics of loads and sources ...
Naveed Ashraf +6 more
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Voltage Clamping Circuits for Large Voltage Step-Down Coupled Inductor Converters [PDF]
Renewable Energy and Sustainable Development, 2019 Water desalination processes require power converters with large voltage step-down ratios and high efficiencies. Coupled‑inductor (tapped-inductor) circuits can achieve this where the whole inductor carries current during one switch state but only part ...
Richard Pollock
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Reduction of the step voltages of MV/LV substation grounding system based on shaping electric field [PDF]
Archives of Electrical Engineering, 2021 The article presents the analysis results of the effectiveness limitation of the step voltage by forming an electric field on the ground surface. For shaping the electric field, a method consisting of screens placed around the point of the earth current ...
Roman Sikora, Przemysław Markiewicz
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IEEE Access, 2021 It is important to ensure that a grounding system is designed with a low magnitude of earth resistance, so the protection system can divert the large fault current to earth effectively.
Navinesshani Permal +3 more
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Power Leakage Monitoring and Warning Device for Power Grid Fault Diagnosis: Design and Field Test
Frontiers in Energy Research, 2022 Electrical equipment insulation damage, metal shell conduction on rainy days, and wire short circuits are easy to produce leakage, which form step voltage on the ground and endangers the life and safety of nearby personnel.
Qi Yang +3 more
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Research on lightning transient distribution characteristics of cable-stayed bridges
暴雨灾害, 2023 Bridges are usually located at the junction of land and water, where the surrounding area is open terrain, making them to be easily damaged by lightning strikes.
Yajing SHI +4 more
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Design, Modeling, and Analysis of IEEE Std 80 Earth Grid Design Refinement Methods Using ETAP
Applied Sciences, 2023 The design of a compliant, safe, and reliable substation earth grid is not a straightforward process; in most cases, it requires some additional measures to be taken due to various constraints that differ from environment to environment, such as soil ...
Vuyani Michael Nicholas Dladla +2 more
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Energies, 2023 The voltage in distribution systems is controlled by the under-load tap changer of the substation and the pole transformer of the primary feeders. Recently, as one of the main countermeasures, a step voltage regulator is being introduced to solve voltage
Hyun-ok Lee +3 more
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Effect of Soil Resistivity Measurement on the Safe Design of Grounding Systems
Energies, 2020 A prerequisite for the proper and safe designing of a grounding system is the full knowledge of the ground structure in the terrain of installation.
Vasilios P. Androvitsaneas +3 more
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Energy Reports, 2022 In Lithium-ion battery charging applications, wide step-up/down voltage gain range converters are commonly used. The resonant frequency ratio and quality factor can seriously affect the switching frequency range and voltage gain characteristics of the ...
Yubo Han +6 more
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