| 关于大型发电机-变压器组差动保护整定计算的几点见解 |
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| 引用本文： | 王奕. 关于大型发电机-变压器组差动保护整定计算的几点见解[J]. 广东电力, 2005, 18(8): 22-25 |
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| 作者姓名： | 王奕 |
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| 作者单位： | 广东省电力试验研究所,广东,广州,510600;华南理工大学,电力学院,广东,广州,510641 |
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| 摘 要： | 以某电厂一台300MW发电机组为例，介绍了几点关于大型发电机一变压器组差动保护整定计算的心孽和见解，包括短路电流的计算方法、定值计算的标幺值算法、差动保护的保护范围和灵敏系数，以及毫流互感器（TA）断线闭锁的设值等问题。
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| 关 键 词： | 发电机-变压器组 差动保护 整定计算 |
| 文章编号： | 1007-290X(2005)08-0022-04 |
| 修稿时间： | 2005-03-18 |
Some opinions about setting differential protection for large generator-transformer units |
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| WANG Yi. Some opinions about setting differential protection for large generator-transformer units[J]. Guangdong Electric Power, 2005, 18(8): 22-25 |
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| Authors: | WANG Yi |
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| Abstract: | This paper presents some opinions about setting differential protection for large generator-transformer units. A 300 MW generating unit is illustrated as an example. The opinions in this paper include the methods of short-circuit current calculation, per unit arithmetic, protecting zone and sensitivity, and how to set the blocking function when current transformer circuit is open. |
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| Keywords: | generator-transformer unit differential protection setting calculation |
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