| 一种新型异步电动机差动保护研究 |
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| 引用本文： | 陈秋建,杨左勇,俞徐斌. 一种新型异步电动机差动保护研究[J]. 自动化技术与应用, 2006, 25(1): 80-81 |
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| 作者姓名： | 陈秋建 杨左勇 俞徐斌 |
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| 作者单位： | 宝山钢铁股份有限公司宝钢分公司,上海,200941 |
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| 摘 要： | 本文主要论述了异步电动机新型差动保护的原理,提出了一种由三个电流互感器,三个过流瞬动单元或一个有三个模拟量输入的过流瞬动保护单元来实现2MW及以上电动机差动保护的设计思想.该方法同传统的保护相比,具有设计费用低,所需元器件少,保护功能利用率高等优点.
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| 关 键 词： | 异步电机 纵连差动 穿芯CT 继电保护 |
| 文章编号： | 1003-7241（2006）01-0080-02 |
| 收稿时间： | 2005-09-13 |
| 修稿时间： | 2005-09-13 |
A Novel Method of Differential Protection for Induction Machines |
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| CHEN Qiu-jian,YANG Zuo-yong,YU Xu-bin. A Novel Method of Differential Protection for Induction Machines[J]. Techniques of Automation and Applications, 2006, 25(1): 80-81 |
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| Authors: | CHEN Qiu-jian YANG Zuo-yong YU Xu-bin |
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| Abstract: | This paper introduces a novel method of the differential protection for induction machines. The system is composed of 3 mutual inductance devices, and 3 simple overcurrent spark action units or alternatively an overcurrent spark protection unit that consists of 3 analog inputs. Compared with the traditional design methods, the novel one is low price and high efficiency. |
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| Keywords: | Induction machine Lengthways- connection differential Thro- core CT Relay protection |
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