Results 241 to 250 of about 324,588 (293)

Arc Duration in the Anodic Case

IEEE Transactions on Parts, Hybrids, and Packaging, 1975
The anode arc is a source of erosion in electrical contacts. The erosion is thought to be proportional to the arc duration. This paper investigates the anodic arc length. A new experimental technique is described to measure arc duration. This method provided better statistics and better time resolution.
J. Augis, L. Hines
exaly   +2 more sources

Distribution of Arc Duration and Material Wear Due to Arc for Ag, Cu, and Pd Contacts

IEEE Transactions on Components, Hybrids and Manufacturing Technology, 1979
An apparatus to measure the arc duration in moving contacts has been developed, which not only measures a breaking arc duration for each contact operation, but also integrates the durations of all arcs occurring during the contact operating period. The apparatus is applied to measure the distribution of arc duration and to find the relationship between
T Takagi
exaly   +2 more sources

Relationship between Arc Duration and Motion of Arc Spots for Break Arcs of Ag and Ag/ZnO Electrical Contacts

IEICE Transactions on Electronics, 2008
Break arcs are generated in a DC 42V-10A resistive circuit. The contact material is Ag or Ag/ZnO. The number of break operations is two hundreds for each contact material. The motion of break arcs is observed with a high-speed camera. Relationship between the dependence of arc duration on the number of operations and the motion of arc spots is ...
Junya Sekikawa, Takayoshi Kubono
exaly   +2 more sources

An Experimental Study of Arc Duration and Transition from Metallic to Gaseous Phase in Ag Alloy Break Arc

Electrical Contacts - 2007 Proceedings of the 53rd IEEE Holm Conference on Electrical Contacts, 2007
We have studied maintaining mechanism of the contacts arc discharge. In our experiment, the arc duration ta, metallic phase arc duration tm, and transition ratio from metallic to gaseous phase arc G were experimentally studied in Ag, AgCu and AgSnO2 breaking contacts.
Kiyoshi Yoshida, Sunao Tanimoto
exaly   +2 more sources

Experimental Study on Arc Duration under Different Atmospheres

IEICE Transactions on Electronics, 2014
Zhenbiao Li   +2 more
exaly   +2 more sources

Arc Duration of Break Arcs Magnetically Blown-Out in a DC 450V Resistive Circuit

IEICE Transactions on Electronics, 2012
Junya Sekikawa, Takayoshi Kubono
exaly   +2 more sources

Influence of the pre-arcing bridging on the duration of vacuum arc

Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041), 2002
Phenomena in a molten bridge between electrical contacts at the stage preceding vacuum arc ignition and their influence on the arc duration are investigated using a mathematical model and experimental data. Two models of a bridge are considered and compared.
S.N. Kharin, Q.K. Ghori
openaire   +1 more source

Statistical Behavior of Break Arc Durations and the Minimum Arc Sustaining Current

IEEE Transactions on Components, Hybrids, and Manufacturing Technology, 1979
Break arc durations as a function of current from ~0.11.5 A have been examined for Pd, Ag, Pd/Ag, and Au electrodes. Arc durations at !ow currents obey an exponential !aw which changes with increasing current to a log-normal distribution and finally to a relatively random distribution. The minimum arc sustaining current i min is defined as the value of
E. Gray, J. Pharney
openaire   +1 more source

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