| SEL-387在110kV主变差动保护上的应用 |
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| 引用本文： | 朱红云.SEL-387在110kV主变差动保护上的应用[J].电工技术,2006(2):14-18. |
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| 作者姓名： | 朱红云 |
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| 作者单位： | 湛江东兴石油企业有限公司,广东,湛江,524012 |
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| 摘 要： | 介绍了SEL-387保护装置在1 10kV主变差动保护上的应用,重点对差动单元的动作逻辑原理、比率差动的电流调整比TAP及变压器联结补偿的原理进行了分析.通过一个工程实例给出了差动保护定值的计算过程,分析了其差动保护误动的原因,并给出了对策.
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| 关 键 词： | SEL变压器 比率差动 电流调整比 联结补偿 |
| 收稿时间： | 2005-10-18 |
| 修稿时间： | 2005年10月18 |
Application of the SEL-387 in 110kV Main Transformer Differential Protection |
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| Zhu Hongyun.Application of the SEL-387 in 110kV Main Transformer Differential Protection[J].Electric Engineering,2006(2):14-18. |
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| Authors: | Zhu Hongyun |
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| Affiliation: | Zhanjiang Dongxing Oil Enterprise Co., LTD, Zhanjiang, Guangdong 524012 |
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| Abstract: | This article introduces the application of SEL-387 in 110kV main transformer differential protection, it analyses the trip logic principium of differential protection unit, principle of current TAP and transformer connection compensation. At the same time, with the an engineering instance, calculate of differential protection parameter are showed. Analysis and solving action reason of the microprocessor based transformer differential protection. |
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| Keywords: | SEL transformer Percentage restrained differential Current TAP Transformer connection compensation |
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