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2014 International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV), 2014
Vacuum circuit breakers are extending their applications from low/medium voltage level to high voltage level due to their good properties. Multi-break vacuum circuit breakers are used in special applications because thry have better breaking capability and withstand higher breakdown voltage compared with single-break vacuum circuit breakers.
Liqiong Sun +4 more
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Vacuum circuit breakers are extending their applications from low/medium voltage level to high voltage level due to their good properties. Multi-break vacuum circuit breakers are used in special applications because thry have better breaking capability and withstand higher breakdown voltage compared with single-break vacuum circuit breakers.
Liqiong Sun +4 more
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The vacuum arc and vacuum interruption
Journal of Physics D: Applied Physics, 1989The vacuum arc has been widely studied in recent years. One of the principal reasons for this interest has been the increasing use of the vacuum arc to achieve circuit interruption in electrical distribution systems. This is an expanding application with sales predictions of 300000 units for 1987 and with many millions already in service worldwide ...
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Long-term vacuum integrity of vacuum interrupters
2014 International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV), 2014Vacuum interrupters (VI's) are the primary switching technology for medium voltage (1–52kV) electrical power systems. The extensive field service of VI's is now raising interest in determining the end of life for these devices, with the primary concern being the loss of vacuum.
E. D. Taylor, A. Lawall, D. Gentsch
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The influence of CuCr25 characteristics on the interruption capability of vacuum interrupters
XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV., 2005This paper presents an extended survey on the influence of material characteristics of CuCr2S on the overall performance of Axial Magnetic Field Vacuum Interrupters (VI'S). Three distinct production processes are used to manufacture this material which can be discriminated by the maximum operating temperature; these processes are : solid state ...
M. Devismes +6 more
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Distribution of electric field in vacuum interrupter during interrupting
Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041), 2002The electric field distribution in a high-voltage vacuum interrupter is calculated and analyzed with the finite-element method. In the calculation, the potential on the electrodes is set asymmetric and the voltage on the floating shield is unknown. The influence of plasma conductivity and charges on electrode surface is also considered.
null Wang Zhongyi, null Wang Jimei
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The Vacuum Interrupter Contact
IEEE Transactions on Components, Hybrids, and Manufacturing Technology, 1984A survey of developments in electric contact design for vacuum interrupters is presented. The major emphasis is placed upon those characteristics of contact design that have led to practical vacuum interrupters. A brief description is given of the different modes of vacuum arc that have been observed and how these modes occur during one-half cycle of ...
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Particle detection in vacuum interrupter after current interruption
2013 19th IEEE Pulsed Power Conference (PPC), 2013After high current interruption in vacuum interrupter, the electrode temperature rises because of the current heat process, and the surface becomes rough due to the arc burn on electrodes. In this paper, random discharge after current zero is reported, and conducting particle is considered to be responsible for the phenomenon.
Shuo Xu +4 more
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Interrupting Capacity of Vacuum Interrupters as a Function of Contact Geometry
IEEE Transactions on Components, Hybrids, and Manufacturing Technology, 1985Systematic investigations of the interrupting capacity of vacuum circuit breakers with different contact shapes and sizes are reported. For various electrode geometries with current-dependent selfgenerated transverse and axial magnetic fields, the breaking current limit was determined.
F.-W. Behrens, A. Erk
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Deionisation of an interrupted vacuum arc
Proceedings of the Institution of Electrical Engineers, 1977Measurements have been made of time-dependent saturation ion currents flowing to a probe and to the discharge electrodes following the forced extinction of high-current (1–5 kA) vacuum arcs of short duration (≃1 ms) on copper electrodes.The results have been utilised to derive ion-flux distributions irrespective of ion-charge number, assuming ...
G.J. Bauer, R. Holmes
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Post-arc current measurement and interruption performance of vacuum interrupter in DC interruption
Journal of Physics D: Applied Physics, 2022Abstract In the DC grid, fault current rises very fast due to low impedance. Fast DC circuit breakers are needed to isolate faults and avoid a collapse of the common DC grid voltage. Based on the forced current zero (CZ) technology, the vacuum interrupter (VI) equipped with fast electromagnetic repulsion mechanism is a very promising ...
Qiang Tang +3 more
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