| 一种新的电力变压器微机保护方案 |
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| 引用本文： | 雷宇凌,梁志珊.一种新的电力变压器微机保护方案[J].吉林电力,2003(3):21-22,28. |
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| 作者姓名： | 雷宇凌 梁志珊 |
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| 作者单位： | 东北电力学院,吉林,吉林,132012 |
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| 摘 要： | 针对目前变压器微机保护中广泛使用的二次谐波制动原理的缺陷，介绍了一种新的变压器微机保护方案。该方案将比值式电流制动作为变压器的主保护方案，利用变压器处于不同状态时差动电流的不同特性再引入不同的辅助判据进行鉴别。仿真表明它具有较好的动作特性。
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| 关 键 词： | 电力变压器 微机保护 二次谐波制动原理 电力系统 继电保护 |
| 文章编号： | 1009-5306(2003)03-0021-02 |
A New Type of Transformer Protection Based on Microprocessor |
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| Lei Yu-ling,LIANG Zhi-shan.A New Type of Transformer Protection Based on Microprocessor[J].Jilin Electric Power,2003(3):21-22,28. |
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| Authors: | Lei Yu-ling LIANG Zhi-shan |
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| Affiliation: | Lei Yu ling LIANG Zhi shan |
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| Abstract: | Aimed at the disadvantages of secondary harmonic restraint,a new type of transformer protection based on microprocessor is presented in the paper.The new method is adopted specific value formula restraint,and perfects using different characteristic of differential electrical current of transformers and auxiliary criterion.The result of simulation shows that the new method owns good reliability. |
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| Keywords: | transformer microprocessor relay protection inrush current specific value formula restraint internal fault external fault |
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