| 对几种变压器励磁涌流判别方法的计算分析探讨 |
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| 引用本文： | 刘建飞,苏沛浦.对几种变压器励磁涌流判别方法的计算分析探讨[J].华北电力大学学报,1988(3). |
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| 作者姓名： | 刘建飞 苏沛浦 |
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| 作者单位： | 华北电力学院北京研究生部，华北电力学院北京研究生部 |
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| 摘 要： | 本文利用数字仿真技术,建立了三相变压器暂态数模,编制程序计算了变压器暂态电流和端电压,根据计算结果,重点分析讨论了三种主要的变压器励磁涌流判别原理,文中提出了一种改进后的基于磁通原理的涌流判别新判据,这样使保护在可靠性和快速性方面都得到了进一步改善。
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| 关 键 词： | 电力变压器 励磁 涌流判别 数字仿真 |
Calculation,Analysis and Discussion about a few Method of Discriminating Transformer Inrush |
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| Abstract: | The transient quantities of three-phase transformers are simulated and calculated by numerical method. By simulation results, three main principles which discriminate magnetizing inrush current from internal fault current are discussed. A new improved discriminating criterion based on flux principle is presented. Consequently, the reliability and the fast-action of protection are further improved. |
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