A study of electrical contacts in which a permanent magnet is embedded to reduce contact erosion caused by arc discharges
| Project/Area Number |
20760182
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Shizuoka University |
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Principal Investigator |
SEKIKAWA Junya Shizuoka University, 工学部, 准教授 (80332691)
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| Research Collaborator |
KUBONO Takayoshi 静岡大学, 名誉教授
TAKESHITA Naoya 静岡大学, 工学研究科, 大学院生
BAN Norimitsu 静岡大学, 工学研究科, 大学院生
ATSUMI Tomohiro 静岡大学, 工学研究科, 大学院生
SUGIMOTO Kazuyoshi 静岡大学, 工学部, 4年生
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 電磁リレー / 接点消耗 / スイッチ / 開離時アーク / 高速度カメラ / 直流回路 / アーク放電 / 電気接点 / アーク駆動 / 永久磁石 |
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| Research Abstract |
Occurrence of arc discharges is inevitable when the DC electrical circuit is switched by electrical contacts mounted on a magnetic relay. The relay falls into the defective operation if the position of the arcs is localized on contact surfaces. A new structure of the electrical contacts in which the permanent magnet was embedded was proposed in order to avoid the defect. As results, it is proved that the new structure was effective to achieve the wide and uniform erosion of electrical contacts used in the DC circuit.
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Report
(4 results)
Research Products
(44 results)
