| 引用本文: | 熊媛,高仕斌.牵引变压器空投时差动保护误动分析及改进[J].电力自动化设备,2000,(6):17-19,28 |
| .Analysis on the Malfunction of Differential Protection for Traction Transformer and Its Improvement[J].Electric Power Automation Equipment,2000,(6):17-19,28 |
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| 摘要: |
| 通过对牵引变压器空投时励磁涌流的仿真波形及谐波的分析，找出了空投时引起差动保护误动的原因，并在理论上探讨了利用变压器的电磁方程来弥补传统牵引变压器二次谐波制动方式的不足。 |
| 关键词: 牵引变压器 差动保护 误动分析 电力系统 |
| DOI： |
| 分类号:TM772 TM922.73 |
| 基金项目: |
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| Analysis on the Malfunction of Differential Protection for Traction Transformer and Its Improvement |
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XIONG Yuan GAO Shi bin
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| Abstract: |
| The cause of the needless trip of differential protection for tractron transformer by the inrush of magnetizing current is researched,which is based on the analysis of its simulative waveform and harmonics.And the way of using the electromagnetic field equation of transformer to overcome the defect in the conventional approach with second harmonic of traction transformer is theoretically discussed. |
| Key words: traction transformer,magnetizing inrush,malfunction,simulation,electromagnetic field equatio |
