Results 161 to 170 of about 453,863 (195)
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Secondary arc modelling for single pole reclosing analyses
2015 IEEE Power & Energy Society General Meeting, 2015The paper discusses two evaluation methods of single pole auto-reclosing process effectiveness in HV transmission lines. Secondary arc current and recovery voltage calculation results obtained by load flow calculation are compared to the results obtained by the time domain simulations.
Jacek Klucznik +3 more
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Determination of secondary collimator shape in electron arc therapy
Physics in Medicine and Biology, 1993The characteristic angle- beta concept in electron arc therapy of non-cylindrical target volumes is applied in determining the required shape of the arced electron field to yield a uniform dose distribution inside the target volume. The empirical relationships derived for this purpose from the angle- beta concept are valid for all field widths and thus
M Pla, E B Podgorsak, C Pla, C R Freeman
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Probability Distribution of Secondary Arc Duration on Solar Array
46th AIAA Aerospace Sciences Meeting and Exhibit, 2008Secondary arc on satellite solar array is sometimes fatal to spacecraft operation by damaging insulation of solar array string circuit. A proper ground test method is necessary to correctly assess the risk of secondary arc from the probability of occurrence in orbit.
Mengu Cho +4 more
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Investigation on the Influencing Factors of Arcing Time for Secondary Arcs
IEEE Transactions on Industrial Electronics, 2022Hongshun Liu +6 more
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IEEE Transactions on Dielectrics and Electrical Insulation, 2022
Haoxi Cong +4 more
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Haoxi Cong +4 more
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Secondary arc effects in AC/DC hybrid transmission
IEEE Transactions on Power Delivery, 1993Adding a DC circuit to an existing AC transmission line or replacing one AC circuit with a DC circuit is one method of significantly increasing the power transfer capability of the transmission line. Coupling at fundamental frequency from the AC circuit to the DC circuit on the same tower interferes with the clearing of DC line faults.
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Modeling of Secondary Arc Conditions on Satellite Solar Array
2006 International Symposium on Discharges and Electrical Insulation in Vacuum, 2006Secondary arc on solar array in space is defined as an arc discharge short-circuiting adjacent solar cells. As operational voltage of spacecraft increases to 100V, there is more risk of secondary arc that can destroy solar array circuit. Secondary arc is categorized as vacuum arc, although its current is very low, even less than 1A.
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A second generation EMET railgun for secondary arc studies
IEEE Transactions on Magnetics, 1991Since 1985 GT-Devices has been operating a pair of railguns with lengths of 0.9 m and 3.6 m, respectively. A new second-generation railgun is now being constructed to improve straightness, stiffness, sealing, and diagnostic access. The basic design consists of a steel tube with a thin lengthwise slit forming two halves in cross section with bolt ...
F.D. Witherspoon +2 more
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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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Welding arc-like injury with secondary subretinal neovascularization
Retina, 1997G F, Kozielec, C W, Smith
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