| Presentation | 2012-11-30 Observation of growth of arc damages on Ag and AgSnO_2 contact surfaces during switching operations Keisuke TAKAHASHI, Makoto HASEGAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An evaluation system for contact surface damages is being constructed so as to realize observation of a changing process of contact surface damages (especially, growth of a crater and/or a pip) during switching operations. This system employs an optical cross-section method for evaluating a cathode surface and further utilizes another camera system for observation of a counterpart anode surface. In this paper, Ag and AgSnO_2 contacts were operated to break a DC inductive 14V-2A load current for 50,000 operations and during the switching operations, changes in a surface profile of the movable cathode electrode (a crater growth process), as well as a surface of the counterpart stationary anode electrode (a pip growth process), was observed at every 2000 operations with this evaluation system. Certain changes in both electrode surfaces were able to be observed during the switching operations. Comparisons of the results for these two contact materials indicate certain differences in material transfer and erosion characteristics among these contact materials. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical cross-section method / Electrical contacts / Arc discharge / Crater shape / Material transfer / Erosion |
| Paper # | EMD2012-69 |
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| Conference Information | |
| Committee | EMD |
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| Conference Date | 2012/11/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Electromechanical Devices (EMD) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Observation of growth of arc damages on Ag and AgSnO_2 contact surfaces during switching operations |
| Sub Title (in English) | |
| Keyword(1) | Optical cross-section method |
| Keyword(2) | Electrical contacts |
| Keyword(3) | Arc discharge |
| Keyword(4) | Crater shape |
| Keyword(5) | Material transfer |
| Keyword(6) | Erosion |
| 1st Author's Name | Keisuke TAKAHASHI |
| 1st Author's Affiliation | Chitose Institute of Science & Technology() |
| 2nd Author's Name | Makoto HASEGAWA |
| 2nd Author's Affiliation | Chitose Institute of Science & Technology |
| Date | 2012-11-30 |
| Paper # | EMD2012-69 |
| Volume (vol) | vol.112 |
| Number (no) | 332 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |