Results 11 to 20 of about 523,735 (343)
Micro-Degradation Characteristics and Mechanism of ZnO Varistors under Multi-Pulse Lightning Strike
Energies, 2020 In view of the problem that ZnO varistors are often subjected to thermal breakdown and deterioration due to lightning strikes in low-voltage power distribution systems, this article used a 8/20 µs multi-pulse surge current with a pulse time interval of ...
Chunlong Zhang +4 more
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On the Characterisations of the Impulse Breakdown in High Resistivity Soils by Field Testing
Energies, 2021 This paper presents experimental results of high-current impulse tests on six ground electrode configurations. A high impulse current generator is employed to inject different magnitudes of current into these rod electrodes, under both positive and ...
Abdul Wali Abdul Ali +1 more
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Energies, 2021 When the lightning current enters the ground through the grounding system, the impulse dispersion performance can be observed by the phenomenon of soil spark discharge, which is fundamentally determined by the nearby soil.
Xiaoyan Han +5 more
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Long Distance Intrinsically Safe Power Supply Technology in Coal Mines
Meikuang Anquan, 2020 Based on the problem of weak remote power supply capacity of intrinsically safe power supply in coal mines, according to the centralized power supply mode of point-to-point power supply in the field, this paper analyzes the fault phenomenon caused by ...
LIU Yahui
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Equivalent circuit model of tower based on full-wave analysis
Energy Reports, 2022 The tower model is very important for the assessment of lightning protection for transmission line. The parameters of tower model mainly rely on the impulse experiments of tower.
Chun Li +6 more
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Ionospheric current contribution to the main impulse of a negative sudden impulse [PDF]
Earth, Planets and Space, 2014 The geomagnetic field response to a moderate-amplitude negative sudden impulse (SI−) that occurred on 14 May 2009 at 10:30 UT was examined at 97 geomagnetic observatories situated all over the globe. The response signature contains a contribution from magnetospheric as well as ionospheric currents.
Vichare, Geeta +3 more
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A Novel VSG Control Strategy for UPS Voltage Source Inverter with Impulsive Load
Energies, 2022 This paper proposes a novel control strategy to alleviate the impulsive current for Uninterruptible Power Supply (UPS), which is designed based on the theory of virtual synchronous generator (VSG) and dynamic switching method.
Guofeng He +4 more
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Impulse Characteristics of Highly Wetted Soils [PDF]
Journal of Electrical and Electronics Engineering, 2023 It has been well accepted that under high impulse conditions, ionisation process in soil would occur, causing the ground resistance value to fall to a lower value than that obtained at low voltage low current, RDC.
REFFIN Muhd Shahirad +4 more
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Impulsivity: current and future trends in pharmacological treatment [PDF]
Expert Review of Neurotherapeutics, 2010 : • Functional impulsivity, associated with faster information processing, thus facilitating quicker responses to envi-ronmental challenges, and improving the individual’s adaptation to the environment;• Dysfunctional impulsivity, which leads to harmful consequences for the individual or for others.
María Dolores, Braquehais +2 more
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A New Phase Sequence Exchanging Control Method for Reducing Impulse Current and Voltage
IEEE Access, 2019 Phase sequence exchanging technology (PSET) is a recently developed emergency control technology for out-of-step power systems. The PSET system does not satisfy the condition of synchronization however, and will produce impulse current and impact torque.
Yifan Li +5 more
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