Results 221 to 230 of about 80,021 (260)
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Electrostatic Discharge and Secondary Arcing on Solar Array—Flashover Effect on Arc Occurrence
IEEE Transactions on Plasma Science, 2008A good representativeness of the test setup used for the qualification of solar arrays is fundamental. We know now that the flashover current involved in the electrostatic discharge is related with the total dielectric surface neutralized during the electrostatic discharge.
V. Inguimbert +6 more
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Research on Secondary Arc for UHV Transmission Lines
2009 Asia-Pacific Power and Energy Engineering Conference, 2009A dynamic mathematical model-Johns arc model which could be used to simulate the dynamic secondary arc in the process of single-phase auto-reclosure after transient single-phase faults is presented and actualized in PSCAD/EMTDC. This model is used in the digital faults simulations of the first ultra high voltage (UHV) transmission line of 1000 KV class
Song Xiang +3 more
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Secondary arc extinction and detection real and simulated
IET 9th International Conference on Developments in Power Systems Protection (DPSP 2008), 2008Removal of a single line to ground fault by isolating only the faulted phase frequently leads to the creation of a secondary fault arc. Auto reclose protection schemes depend upon the absence of a secondary arc prior to reclosing. Consequently, there is great benefit from a technology to determine secondary arc extinction detection. The testing of SAED
J. Giesbrecht +2 more
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Secondary arc of LEO spacecraft solar array
2017 4th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST), 2017High voltage solar array (HVSA) and extreme high voltage solar array (EHVSA) are important demands for spacecraft in the future. The electrostatic discharge will be caused by the interactions between the high voltage solar array and the plasma in the space environment in LEO.
Zhu Liying +4 more
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The Movement Characteristics and the Plasma State of Secondary Arc
2018 China International Conference on Electricity Distribution (CICED), 2018In order to study the generation mechanism and dynamic physical properties of the secondary arc, the combination of low-voltage simulation experiment and simulation modeling is used to analyze the movement characteristics of the secondary arc and the plasma state before the start of secondary arc.
Xia Tian +5 more
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Field Verification of Secondary Arc Extinction Logic
IEEE Transactions on Power Delivery, 2016Single-phase trip and high-speed reclose (SPTR) schemes applied on extra-high-voltage (EHV) lines offer significant benefits over three-phase schemes as they help maintain synchronism and stability in sparse transmission networks. However, a secondary arc may persist and prevent timely recovery of the air insulation.
Mukesh Nagpal +5 more
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Secondary Arc Current of UHVAC System
2017Compared with EHV lines, the UHV transmission lines have high voltage, long transmission line, large phase-to-phase capacitance, and mutual inductance values, which make it to have larger secondary arc current and higher recovery voltage, requiring measures to be taken to control the secondary arc current and recovery voltage, or the success rate of ...
Qiang Yi, Hao Zhou, Sha Li
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A Probabilistic Approach for Secondary Arc Risk Assessment
IEEE Transactions on Power Delivery, 2004A probabilistic methodology for secondary arc extinction time calculations is presented. The proposed approach permits the calculation of the probability of secondary arc extinction as a function of time and represents an extension of the well-known deterministic model proposed in , where the extinction time is obtained from EMTP-type simulations and ...
J.H.N. Nava, R.A. Rivas, A.J. Urdaneta
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The railgun force in the presence of secondary arcs
IEEE Transactions on Magnetics, 1991A model of the railgun forces in the presence of a secondary arc has been developed. The model approximates the railgun rails as parallel, circular, cross-sectional wires, and the armature and secondary arc as filaments. The classical railgun force equation has been generalized, and its correspondence to an equivalent electrical circuit has been ...
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Plasma Science and Technology, 2015
The prompt extinction of the secondary arc is critical to the single-phase reclosing of AC transmission lines, including half-wavelength power transmission lines. In this paper, a low-voltage physical experimental platform was established and the motion process of the secondary arc was recorded by a high-speed camera.
Haoxi Cong +4 more
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The prompt extinction of the secondary arc is critical to the single-phase reclosing of AC transmission lines, including half-wavelength power transmission lines. In this paper, a low-voltage physical experimental platform was established and the motion process of the secondary arc was recorded by a high-speed camera.
Haoxi Cong +4 more
openaire +1 more source