| Presentation | 2009-06-19 An experimental study on influences of contact opening speeds on break arc characteristics of Ag contacts Asuka SUDO, Makoto HASEGAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order to study the influences of contact opening speeds on break arc behaviors, Ag contacts were operated to break inductive DC load currents from 0.1A to 2.0A at 14V with contact opening speeds of 1mm/s, 5mm/s and 10mm/s in a switching mechanism employing a stepping motor. Occurrence rates of break arcs and their average durations were determined at each current level under the respective contact opening speeds. From the results, irrespective of the opening speed values, at the conventional minimum arc current level of 0.4A, the arc occurrence rates were almost 100% and the average arc durations were around 10 to 30μs. This confirmed the author's previous observations in which the conventional minimum arc current level should be considered as the threshold level for arc discharges of certain duration to occur at the rate of almost 100%. The arc occurrence rates below 0.4A were slightly influenced by changes in the contact opening speeds. With respect to arc extinction gaps calculated by multiplying the average arc duration value and the contact opening speed value, it was found that with increasing the contact opening speeds, arc extinction gaps became larger, although they were on the order of several tens μm or less in the tested conditions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Arc discharge / Arc extinction gap length / Contact opening speed / Minimum arc current / Ag contacts |
| Paper # | EMD2009-20,CPM2009-32,OME2009-27 |
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| Conference Information | |
| Committee | CPM |
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| Conference Date | 2009/6/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Component Parts and Materials (CPM) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An experimental study on influences of contact opening speeds on break arc characteristics of Ag contacts |
| Sub Title (in English) | |
| Keyword(1) | Arc discharge |
| Keyword(2) | Arc extinction gap length |
| Keyword(3) | Contact opening speed |
| Keyword(4) | Minimum arc current |
| Keyword(5) | Ag contacts |
| 1st Author's Name | Asuka SUDO |
| 1st Author's Affiliation | Chitose Institute of Science and Technology() |
| 2nd Author's Name | Makoto HASEGAWA |
| 2nd Author's Affiliation | Chitose Institute of Science and Technology |
| Date | 2009-06-19 |
| Paper # | EMD2009-20,CPM2009-32,OME2009-27 |
| Volume (vol) | vol.109 |
| Number (no) | 90 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |