| 一种新的电力变压器微机保护方案研究 |
| |
| 引用本文： | 雷宇凌,雷宇壮. 一种新的电力变压器微机保护方案研究[J]. 四川电力技术, 2005, 28(4): 32-34 |
| |
| 作者姓名： | 雷宇凌 雷宇壮 |
| |
| 作者单位： | 东北电力学院,吉林吉林,132012;东电一公司,辽宁铁岭,112000 |
| |
| 摘 要： | 针对目前微机变压器保护中广泛使用的二次谐波制动原理的缺陷，介绍一种新的微机变压器保护方案。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。实验表明，其具有较好的动作特性。
|
| 关 键 词： | 变压器微机保护 励磁涌流 比值式制动 内部故障 外部故障 |
| 文章编号： | 1003-6954(2005)04-0032-03 |
| 收稿时间： | 2005-04-10 |
| 修稿时间： | 2005-04-10 |
Study on One New Microprocessor-based Protection Scheme of Power Transformer |
| |
| Lei Yuling,Lei Yuzhuang. Study on One New Microprocessor-based Protection Scheme of Power Transformer[J]. Sichuan Electric Power Technology, 2005, 28(4): 32-34 |
| |
| Authors: | Lei Yuling Lei Yuzhuang |
| |
| Affiliation: | Lei Yuling Lei Yuzhuang |
| |
| Abstract: | Aiming at the disadvantages of second harmonic restraint, a new transformer protection based on microprocessor is presented. The new method takes specific value formula restraint as main protecfon of transformer. It uses different characteristic of differential current of transformer and different auxiliary criteria to do the discrimination. The test shows that the new method has a good reliability. |
| |
| Keywords: | transformer protection based on microprocessor inrush current specific value formula restraint internal fault external fault |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
