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Effect of Axial and Transverse Magnetic Fields on the Arc Duration and Material Transfer
IEICE Transactions on Electronics, 2012Axial and transverse magnetic fields are widely used in many kinds of switches to decrease the arc erosion. In this paper, the influence of these two kinds of magnetic fields on the arc phase transition was studied particularly for AgSnO2 contacts breaking a 28V/25A circuit.
Guofu Zhai, Xinglei Cui, Xue Zhou
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IEICE Transactions on Electronics, 2011
Break arcs are rotated with the radial magnetic field formed by a magnet embedded in the fixed contact. They are generated in a DC42V resistive circuit. The circuit current when the contacts are closed varies from 5A to 21A. The strength of a radial magnetic field for rotating break arcs changes. Arc duration is investigated. Then rotational frequency,
Naoya Takeshita +2 more
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Break arcs are rotated with the radial magnetic field formed by a magnet embedded in the fixed contact. They are generated in a DC42V resistive circuit. The circuit current when the contacts are closed varies from 5A to 21A. The strength of a radial magnetic field for rotating break arcs changes. Arc duration is investigated. Then rotational frequency,
Naoya Takeshita +2 more
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Arc durations as a function of contact metal and exposure to organic contaminants
Journal of Applied Physics, 1977Activated-break arc durations have been measured for various organic compounds and contact metals. These durations were determined as a function of exposure (partial pressure of organic contaminant times the contact open time) for each metal and organic compound. The metals studied were palladium, gold, silver, rhenium, 60 Pd-40 Ag, and 73 Pd-27 Ni (wt%
Eoin W. Gray +2 more
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Characterization Experiments of Secondary Arcs on Solar Arrays: Threshold and Duration
Journal of Spacecraft and Rockets, 2010An electrostatic discharge test performed on a solar array panel is one of the important tests carried out before spacecraft launch to ensure spacecraft reliability in orbit. In this study, the effects of secondary arcs on the solar array, which can cause catastrophic accidents, are considered.
Hirokazu Masui +4 more
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Electrode temperature decays of interrupted d.c. arcs of variable duration†
International Journal of Electronics, 1970Results are given for the decay of electrode temperature for arcs of variable durations, 50–500 msec and current range 10–50 A. The working gas was air at atmospheric pressure and the electrodes were 3[sdot]2 mm φ graphite rods. The temperature decay values have been compared with other workers' measurements of arc re-ignition voltages, obtained under ...
K. R. HEARNE, S. A. NIXON
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An Investigation Of Short Duration Arcs In Rare Gases.
1950PhD ; Physics ; University of Michigan, Horace H. Rackham School of Graduate Studies ; http://deepblue.lib.umich.edu/bitstream/2027.42/182861/2/0001515 ...
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Dependence of nonstationary behavior of arc cathode spots on discharge duration
SPIE Proceedings, 1994In nanosecond vacuum arc discharges, the size of cathode plasmas has been found to have the order of 10 micrometers . This outcome has decisive consequences for particle density, current density, time constants, and radiation properties. The present paper explores the question whether there occur principal changes in longer discharges.
B. Juettner +3 more
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A New Method for the Measurement and Integration of Arc Durations in Electrical Contacts
IEEE Transactions on Instrumentation and Measurement, 1975A unique method for the continuous measurement of electric-arc duration is presented. By using the method, it is possible to know the distribution of arc durations at any instance of time and, at the same time, the integration of arc durations has become much more convenient and less time consuming than any other existing methods.
M. Abdul Kader Pramanik +2 more
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Measuring the opening arc duration between the punched and/or nonpunched contacts
Electronics and Communications in Japan (Part II: Electronics), 1990AbstractSince 1984, various kinds of experimental data on the punched contacts were gathered to confirm their efficacy. In this paper, the duration data of the opening arc which causes the damage of relay contacts are collected and investigated in every production lot of specimens.The production lot number in all specimens is seven.
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1967
The voltage-current charateristics are termed VI-characteristics. They are curves in which the voltage, V, of the arc is plotted against the current, I, with the arc length as a parameter. They constitute an endorsed means of illustrating properties of an arc1.
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The voltage-current charateristics are termed VI-characteristics. They are curves in which the voltage, V, of the arc is plotted against the current, I, with the arc length as a parameter. They constitute an endorsed means of illustrating properties of an arc1.
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