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| 关于永磁机构中永磁工作点的讨论 | |
| 引用本文： | 游一民,陈德桂,罗文科,张敬菽. 关于永磁机构中永磁工作点的讨论[J]. 高压电器, 2002, 38(4): 39-41,51 |
| 作者姓名： | 游一民 陈德桂 罗文科 张敬菽 |
| 作者单位： | 1. 西安交通大学电气学院,陕西,西安,710049;西安高压电器研究所,陕西,西安710077 2. 西安交通大学电气学院,陕西,西安,710049 3. 西安高压电器研究所,陕西,西安710077 |
| 摘 要： | 从永久磁铁的两种工作状态出发 ,说明了永磁机构中永久磁铁的工作点位于回复线上 ,且钕铁硼永磁的祛磁曲线几乎是一条直线 ,它的回复曲线与祛磁曲线基本重合 ,磁感应强度具有重复性。论证了在单线圈式永磁机构中 ,永久磁铁不会发生退磁现象。 |
| 关 键 词： | 永久磁铁 祛磁曲线 回复曲线 工作点 |
| 文章编号： | 1001-1609(2002)04-0039-03 |
DISCUSSION ON THE WORKING POINT OF PERMANENT MAGNET IN PERMANENT MAGNET ACTUATOR |
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| YOU Yi min ,,?CHEN De gui ,?LUO Wen ke ,?ZHANG Jing shu ?. DISCUSSION ON THE WORKING POINT OF PERMANENT MAGNET IN PERMANENT MAGNET ACTUATOR[J]. High Voltage Apparatus, 2002, 38(4): 39-41,51 | |
| Authors: | YOU Yi min ?CHEN De gui ?LUO Wen ke ?ZHANG Jing shu ? |
| Affiliation: | YOU Yi min 1,2,?CHEN De gui 1,?LUO Wen ke 2,?ZHANG Jing shu ?1 |
| Abstract: | Starting from the two operational states of permanent magnet, this article explains that the working point of permanent magnet in the permanent magnet actuator is sited on the reversional curve, and the demagnetized curve of NFeB permanent magnet is approximately in a straight line,and its reversional curve coincides with the demagnetized curve, moreover,its flux density has repeatability. It is proved that the demagnetization wouldn't happen in the permanent magnet actuator with singlecoil during the operation of circuit breaker. |
| Keywords: | permanent magnet ?demagnetized curve reversional curve ?working point |
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