| Presentation | 2014-02-21 Three-dimensional comparisons of damage shapes on Ag and AgSnO_2 contact surfaces caused by break arc discharges Makoto Hasegawa, Daichi Kawamura, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Observation and evaluation of changes (damage growth) on contact surfaces caused by arc discharges are important for realizing better understandings of contact phenomena. For that purposes, an evaluation system enabling observation and evaluation of growth processes of a crater and/or a pip (damage shapes) during switching operations has been being constructed. Up to now, evaluation of a movable cathode surface profile by way of an optical cross-section method, as well as observation of the counterpart stationary anode surface by means of a CCD camera, has been realized. For the cathode surfaces, further observations and evaluations of temporal changes in the cathode surface conditions (a crater growth process) during switching operations were tried by drawing three-dimensional images of the movable cathode samples based on data obtained with the optical cross-section method. In this paper, Ag contact pairs and AgSnO_2 contact pairs were operated to break a DC14V-2A or 3A load current in an inductive circuit, and damage shapes on their contact surfaces were three-dimensionally evaluated and compared with each other by those evaluation schemes as well as measurement of numerical data based on microscope evaluation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical cross-section method / Electrical contacts / Arc discharge / Material transfer / Erosion |
| Paper # | R2013-86,EMD2013-142 |
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| Conference Information | |
| Committee | EMD |
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| Conference Date | 2014/2/14(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electromechanical Devices (EMD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Three-dimensional comparisons of damage shapes on Ag and AgSnO_2 contact surfaces caused by break arc discharges |
| Sub Title (in English) | |
| Keyword(1) | Optical cross-section method |
| Keyword(2) | Electrical contacts |
| Keyword(3) | Arc discharge |
| Keyword(4) | Material transfer |
| Keyword(5) | Erosion |
| 1st Author's Name | Makoto Hasegawa |
| 1st Author's Affiliation | Chitose Institute of Science and Technology() |
| 2nd Author's Name | Daichi Kawamura |
| 2nd Author's Affiliation | Chitose Institute of Science and Technology |
| Date | 2014-02-21 |
| Paper # | R2013-86,EMD2013-142 |
| Volume (vol) | vol.113 |
| Number (no) | 438 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |