| 管金云,刘原.变压器绕组直流电阻快速测试方法[J].南华大学学报(自然科学版),2004,(3):88~91.[.Rapid Measurement of Transformer Wire-wound''''s DC Resistance[J].Journal of University of South China(Science and Technology),2004,(3):88~91.] |
| 变压器绕组直流电阻快速测试方法 |
| Rapid Measurement of Transformer Wire-wound''''s DC Resistance |
| 修订日期：2003-12-12 |
| DOI： |
| 中文关键词: 变压器 绕组直流电阻 快速测试 动态电流 |
| 英文关键词:Transformer wire-wound,DC resistance,rapid measurement |
| 基金项目: |
| 管金云 刘原 |
| [1]湖南大学电气与信息学院,湖南长沙410012 [2]南华大学电气工程学院,湖南衡阳421001 |
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| 中文摘要: |
| 变压器绕组直流电阻测试是变压器重要试验项目，为了快速准确测试变压器绕组直流电阻，人们提出了许多有效的办法，但终未摆脱时间常数的约束．此文论述了通过采集动态电流曲线前面一小段有限个数据点，由计算机软件拟合得到动态电流随时间的表达式，进而准确快速测试绕组直流电阻的方法。 |
| 英文摘要: |
| Measurement of transformer wire-wound's DC resistance is an important test item of transformer.A lot of effective methods were proposed to exactly and rapidly measure transformer wire-wound's DC resistance.However,people were not finally able to rid themselves of restriction of time constant.The paper discusses the method,where limited sample points were collected from a short portion before the start segment of dynamic current curve,and the dynamic current expression was gained by computer software fitting,thereby transformer wire-wound's DC resistance was measured exactly and rapidly. |
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