Search Results - "20th International Symposium on Discharges and Electrical Insulation in Vacuum"
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Future trends in vacuum technology applications
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…In the medium voltage range the vacuum switching principle is well established. Today vacuum circuit breakers are available up to 52 kV rated voltage and 80 kA…”
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2
Numerical modeling of plasma behavior and heat flux to contacts of vacuum arcs with and without external axial magnetic field (AMF)
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…General subject is the physics of the different modes of arcs of vacuum interrupters (VI). Numerically simulations applying the MHD approach are performed…”
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3
Vacuum arcs driven by cross-magnetic fields (RMF)
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…The principle of controlling a high-current vacuum arc by radial magnetic fields (RMF) forcing the constricted arc to move, has long been utilised to design…”
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4
Investigation of dielectric breakdown probability distribution for double-break vacuum circuit breaker
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…Breakdown probability distribution before and after no-load switching was investigated for a vacuum interrupter made from copper-chromium alloy. Since the…”
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5
3D finite element simulation and synthetic tests of vacuum interrupters with axial magnetic field contacts
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…Axial magnetic field improves the interruption ability of vacuum circuit breakers. It is known that the design influences the axial magnetic field (AMF)…”
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6
Electron temperature in the expanding cathode plasma jet in a vacuum arc
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…The electron temperature distribution in the expanding plasma jet from the group spot in 2D approximation is calculated. The model considers spot currents of…”
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7
HV dielectric strength of shielding electrodes in vacuum circuit-breakers
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…The subject of this paper is the HV dielectric strength of shielding and field-grading electrodes in vacuum circuit-breakers. It describes the effects exerted…”
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8
Fifty years of vacuum interrupter development in the UK
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…From the very beginning the UK has significantly contributed to the development of the vacuum interrupter. During the early years of the technology important…”
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9
Investigation on electric field computation of vacuum interrupter using hybrid finite element method and charge simulation method
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…A parallel combined method of finite element method (FEM) and charge simulation method (CSM) is proposed, and a domain decomposition approach is employed to…”
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10
Analysis of AMF vacuum contacts with ferromagnetic material
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…It is well known that vacuum interrupters with axial magnetic fields (AMF) have higher interrupting capability. But as the interrupting current increases to…”
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11
Influence of high energy electrons and protons on secondary electron emission of cover glasses for space solar cells
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…We measured the secondary electron emission (SEE) of cover glasses for space solar cells by beam blanking scanning electron microscopy (BBSEM) with a Faraday…”
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12
Comparison of numerical simulations of plasma behavior of high-current arcs in axial magnetic fields (AMF) with optical observations
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…Computer simulations of light emission emitted side-on of diffuse and of diffuse columnar arcs are compared with high-speed video recordings. ne test setup…”
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13
Physical arc appearance and electrode phenomena of vacuum arcs in axial magnetic fields [vacuum interrupters]
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…An experimental study of high current vacuum interrupters with axial magnetic field contact geometries is presented. Arc visualisation shows a progressive…”
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14
Development of a miniature vacuum arc source as a space satellite thruster
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…A vacuum arc discharge has been developed to act as a space propulsion device dubbed the vacuum arc thruster (VAT). The plasma accelerated from the cathode…”
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15
Simulation of plasma sheath dynamics in vacuum circuit breakers
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…A new simulation method for the post arc phase of vacuum circuit breakers is presented. This simulation is based on a particle in cell scheme using Monte-Carlo…”
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16
Transition to the diffuse mode for high-current drawn arcs in vacuum with an axial magnetic field
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…The opening of electrical contacts while passing current generates a drawn arc. In vacuum, the arc begins as a bridge of molten metal connecting the contacts,…”
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17
Measurements and analysis of temperature rise at electrodes of a vacuum interrupter for high current applications
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…High current switching technology is required for protection of large superconducting coil in the field of nuclear fusion research. The temperature rise of the…”
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18
Research and design of permanent magnetic actuator for high voltage vacuum circuit breaker
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…In order to meet the on off requirement of high voltage vacuum circuit breaker, a novel scheme remodeling the static core of permanent magnetic actuator into…”
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19
Analysis on dynamic dielectric recovery and statistical property of vacuum circuit-breakers with multi-breaks
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…Based on the analysis of dynamic dielectric recovery process on vacuum gaps in series, investigations were made on vacuum circuit breakers with double and…”
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20
Transport of a vacuum arc produced plasma beam in a magnetized cylindrical duct
Published in 20th International Symposium on Discharges and Electrical Insulation in Vacuum (2002)“…The transport of a vacuum arc produced plasma beam along a magnetized cylindrical duct was studied experimentally. The plasma source consisted of a Sn or an Al…”
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