Conferences related to Vacuum breakdown

Back to Top

2021 IEEE Pulsed Power Conference (PPC)

The Pulsed Power Conference is held on a biannual basis and serves as the principal forum forthe exchange of information on pulsed power technology and engineering.


2020 IEEE International Conference on Plasma Science (ICOPS)

IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.


2020 IEEE International Power Modulator and High Voltage Conference (IPMHVC)

This conference provides an exchange of technical topics in the fields of Solid State Modulators and Switches, Breakdown and Insulation, Compact Pulsed Power Systems, High Voltage Design, High Power Microwaves, Biological Applications, Analytical Methods and Modeling, and Accelerators.


2018 17th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm)

The ITherm Conference series is the leading international venue for scientific and engineering exploration ofthermal, thermomechanical, and emerging technology issues associated with electronic devices, packages, and systems.


2018 28th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)

A: BREAKDOWN AND FLASHOVERA1. Vacuum breakdown and pre-breakdown phenomenaA2. Surface discharges and flashover phenomenaB: VACUUM ARCSB1. Switching in vacuum and related phenomenaB2. Interaction of vacuum arcs with magnetic fieldsB3. Vacuum arc physicsB4. Computer modeling and computer aided designB5. Pulsed power physics and technologyC: APPLICATIONSC1. Vacuum interrupters and their applicationsC2. Surface modification and related technologiesC3. Electron, ion, neutron, X-ray and other beam and light sources


More Conferences

Periodicals related to Vacuum breakdown

Back to Top

Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Device and Materials Reliability, IEEE Transactions on

Provides leading edge information that is critical to the creation of reliable electronic devices and materials, and a focus for interdisciplinary communication in the state of the art of reliability of electronic devices, and the materials used in their manufacture. It focuses on the reliability of electronic, optical, and magnetic devices, and microsystems; the materials and processes used in the ...


Dielectrics and Electrical Insulation, IEEE Transactions on

Electrical insulation common to the design and construction of components and equipment for use in electric and electronic circuits and distribution systems at all frequencies.


Electrical Insulation Magazine, IEEE

The magazine covers theory, analysis, design (computer-aided design), and practical implementation of circuits, and the application of circuit theoretic techniques to systems and to signal processing. Content is written for the spectrum of activities from basic scientific theory to industrial applications.


More Periodicals

Most published Xplore authors for Vacuum breakdown

Back to Top

Xplore Articles related to Vacuum breakdown

Back to Top

Onset of breakdown and formation of cathode spots

IEEE Conference Record - Abstracts. 1992 IEEE International Conference on Plasma, 1993

None


Dielectric strength of triggered vacuum switches with six-gap electrode system

Proceedings ISDEIV. 18th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.98CH36073), 1998

Switching conditions influence on dielectric strength of internal insulation of high-current triggered vacuum switches with a trapezoidal rod electrode system is investigated. Investigations were carried out for two switching modes. In the first mode electrode erosion occurs mainly in a vapour phase when the electrode's surface remains smooth enough after switching. In the other switching mode, drop phase of electrodes ...


Vacuum-chamber testing of space-exposed SPEAR-I HV components

IEEE Transactions on Electrical Insulation, 1990

Vacuum-chamber breakdown and current collection experiments are performed to determine the discharge characteristics of the SPEAR I rocket experiment's high-voltage (HV) systems exposed to the space environment. Large-scale diffuse volume discharges are observed under high-vacuum conditions, regardless of the presence of an ionospheric magnetoplasma. The major difference is that in the presence of plasmas the time to breakdown is dramatically ...


Physical process of interrupting AC current in vacuum interrupter and mathematical evaluation of the interrupting capacity

Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041), 2000

Multi-cathode-spot AC arc extinguishing process in vacuum interrupters is shown. It is divided into 4 periods: arc transient state period; sheath developing period; metal vapor decaying period; and static state period. The first 3 stages are dynamic physical processes and their mathematical models are given. Residual resistance in sheath developing period and metal vapor density in metal vapor decaying period ...


The effect of low temperature on the role played by electrodes in vacuum breakdown

IEEE Transactions on Electrical Insulation, 1989

Electrical discharge in a vacuum is discussed, showing that the electrical breakdown requires the creation of plasma in the interelectrode space. Both electrodes are a source of plasma, but the more important dense plasma is created on the anode. In a system with an insulating spacer, the insulator materials is the source of plasma. Plasma creation from a cooled anode ...


More Xplore Articles

Educational Resources on Vacuum breakdown

Back to Top

IEEE-USA E-Books

  • Onset of breakdown and formation of cathode spots

    None

  • Dielectric strength of triggered vacuum switches with six-gap electrode system

    Switching conditions influence on dielectric strength of internal insulation of high-current triggered vacuum switches with a trapezoidal rod electrode system is investigated. Investigations were carried out for two switching modes. In the first mode electrode erosion occurs mainly in a vapour phase when the electrode's surface remains smooth enough after switching. In the other switching mode, drop phase of electrodes erosion prevailed and considerable electrode surface damage took place. It follows from experimental data statistical processing that breakdown voltage distribution is described satisfactorily with the Weibull distribution law. The influence of gap and electrode material on dielectric strength of triggered vacuum switches is considered.

  • Vacuum-chamber testing of space-exposed SPEAR-I HV components

    Vacuum-chamber breakdown and current collection experiments are performed to determine the discharge characteristics of the SPEAR I rocket experiment's high-voltage (HV) systems exposed to the space environment. Large-scale diffuse volume discharges are observed under high-vacuum conditions, regardless of the presence of an ionospheric magnetoplasma. The major difference is that in the presence of plasmas the time to breakdown is dramatically decreased. This breakdown is attributed to the simultaneous presence of magnetic fields, nonuniform electric fields, and the chamber walls. Under these conditions electrons can be E*B trapped inside the chamber, which leads to an increase in the electron-initiated breakdown. Breakdown suppression techniques utilizing low voltage grids are successfully tested and discussed.<<ETX>>

  • Physical process of interrupting AC current in vacuum interrupter and mathematical evaluation of the interrupting capacity

    Multi-cathode-spot AC arc extinguishing process in vacuum interrupters is shown. It is divided into 4 periods: arc transient state period; sheath developing period; metal vapor decaying period; and static state period. The first 3 stages are dynamic physical processes and their mathematical models are given. Residual resistance in sheath developing period and metal vapor density in metal vapor decaying period can be obtained by solving the mathematical equations and the two parameters are used to evaluate the interrupting capability of a vacuum interrupter. In the current interrupting process, if residual resistance keeps rising and metal vapor density is less than the critical one, the vacuum interrupter can interrupt the current successfully.

  • The effect of low temperature on the role played by electrodes in vacuum breakdown

    Electrical discharge in a vacuum is discussed, showing that the electrical breakdown requires the creation of plasma in the interelectrode space. Both electrodes are a source of plasma, but the more important dense plasma is created on the anode. In a system with an insulating spacer, the insulator materials is the source of plasma. Plasma creation from a cooled anode needs more energy. Similarly, cooling of the parts of the insulator where the plasma is created increases the electrical strength.<<ETX>>

  • Strength of vacuum gap with film electrodes

    The experimental data on impulsive electric strength of vacuum gaps with film electrodes conditioned with nanosecond pulses of duration equal to the breakdown delay time are presented. The conformity of the results for the film electrodes to all-metallic ones are shown.

  • Fast cathode processes in conditioning of vacuum electrodes

    High-speed streak photographs of vacuum breakdown show oscillations in light emission at the cathode. Experimental results that show the change in frequency of that oscillation as conditioning progresses are presented. The link between the oscillations and conditioning supports the hypothesis that adsorbed gas removal is the cause of conditioning in vacuum breakdown.<>

  • Vacuum Interrupters: Design optimisation requires reliable experimental data

    Vacuum interrupter technology is mature with respect to manufacturing quality, reliability and performance. One would expect that this leads to a convergence in terms of conception resulting in a dominating design principle. Yet still a large number of designs and dimensions coexist in the market. Numerical calculation techniques are used to optimise the geometry in order to reduce the overall dimension of the VI. This approach requires criteria for maximum allowable electric field or current density values. Yet a look at the state of the art shows that the maximum allowable electric field may vary at least by a factor of 2 and current density on interruption by 20% depending in a subtle way on process parameters. Mastering these details is the drive to more compact designs and new applications.

  • Vacuum Breakdown between Molten Metal Electrodes

    The presence of molten metal on the surface of the electrodes of vacuum circuit breakers, following the interruption of high currents, is a potential source of reduction of breakdown strength. The authors thus devised special experiments to study this effect by separating the roles of the presence of the metal vapour from that of the presence of a molten metal. The experiments also separate the pure dielectric effect from that of the post arc plasma sheath and its dynamic movement, under the influence of the transient recovery voltage, TRV. The results show clearly the large reduction of breakdown voltage which can occur in under these circumstances. These results allow an improved understanding of the physical mechanisms taking place under the transient plasma sheath during the TRV

  • Dependence of field enhancement factor on power frequency voltage in vacuum

    The objective of this paper is to determine the dependence of field enhancement factor β on power frequency (50 Hz) voltage in vacuum. A rod-plane vacuum gap was designed in a vacuum interrupter. Shots of ac power frequency voltage were applied at three vacuum gaps till breakdown occurred and the three vacuum gaps were 1.0 mm, 0.8 mm and 0.5 mm, respectively. The field emission current and applied voltage were measured at the same time. Through Fowler-Nordheim theory analysis, the electric field enhancement factor is obtained to represent a physical change of the emitters. The results showed the dependence of the field enhancement factor β on the applied voltage followed a “V” shape curve. The minimum β value, a turning point of the “V” shape curve, corresponded to a turning point voltage. The turning point voltage was about 90.1% ~ 95.7% of the breakdown voltage. It could be an indication to predict a breakdown in vacuum.



Standards related to Vacuum breakdown

Back to Top

No standards are currently tagged "Vacuum breakdown"


Jobs related to Vacuum breakdown

Back to Top