Results 11 to 20 of about 5,648,704 (342)
Permeability of Magnetic Cores with Air Gaps [PDF]
Materials, 2022 The influence of the geometric dimensions of the cut core and the number and size of air gaps on the effective permeability was investigated. Using dimensional analysis, an equation was obtained that relates the permeability of the cut core to the simplest dimensionless combination of the mean magnetic flux length l, single air gap length lg1, the ...
Yuri N. Starodubtsev +3 more
openaire +4 more sources
Laser-guided energetic discharges over large air gaps by electric-field enhanced plasma filaments [PDF]
Sci Rep, 2017 Recent works on plasma channels produced during the propagation of ultrashort and intense laser pulses in air demonstrated the guiding of electric discharges along the laser path.
F. Théberge +4 more
semanticscholar +2 more sources
Controlling magnetic inductance by air-gap configuration in power electronics applications [PDF]
Archives of Electrical Engineering, 2023 Gapped magnetic components are inherent to applications where conversion of power would force magnetic flux density beyond the saturation point of magnetic materials.
Rafal Kasikowski
doaj +1 more source
Breakdown characteristics of combined air gaps under lightning impulse
AIP Advances, 2022 With the increase of both voltage level and the transmission capacity, more attention has been paid to the external insulation of transmission lines.
Shaocheng Wu +6 more
semanticscholar +1 more source
How pulse polarity and photoionization control streamer discharge development in long air gaps [PDF]
Plasma Sources Science & Technology, 2020 A 2D approach is used to simulate the properties of positive and negative streamers emerging from a high-voltage electrode in a long (14 cm) air gap for standard pressure and temperature. The applied voltage varies from 100 to 500 kV.
A. Starikovskiy, N. Aleksandrov
semanticscholar +1 more source
IET Science, Measurement & Technology, 2023 The diffusional process involving elastic collisions between charge carriers and neutrals has long been the predominant candidate for post‐injection momentum loss in the far wider drift region outside confined DC corona discharges in gases.
Francesco Lattarulo
doaj +1 more source
High Voltage, 2020 Saturable reactor insulation is currently stressed by an exponential decay pulse voltage under normal operating conditions. The partial discharge (PD) characteristics of epoxy resin under an exponential decay pulse voltage were studied here and were ...
Lu Gui +5 more
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Optimal design of q‐axis field winding structure of dual‐excited synchronous condenser
IET Electric Power Applications, 2023 The dual‐excited synchronous condenser (DESC) has two field windings whose axes are located at direct and quadrature axes respectively. The DESC has more capacity of absorbing reactive power than that of the traditional synchronous condenser (TSC ...
Guorui Xu +3 more
doaj +1 more source
Dynamic analysis of Halbach coaxial magnetic gears based on magnetic equivalent circuit modelling
IET Circuits, Devices and Systems, 2021 Halbach permanent magnet arrays (HPMAs) are an attractive configuration that can be applied in PM electric machines such as magnetic gears. These arrays have some merits, namely near‐sinusoidal distribution of flux density along air gap, low torque ...
A. Beirami +3 more
doaj +1 more source
Symmetry reduction in group 4mm photonic crystals [PDF]
, 1997 The size of absolute band gaps in two-dimensional photonic crystals is often limited by band degeneracies at the lattice symmetry points. By reducing the lattice symmetry, these degeneracies can be lifted to increase the size of existing photonic band ...
Anderson, Cheryl M. +1 more
core +1 more source