| 用三相电流源测试阻抗匹配平衡变压器差动保护比率特性曲线的方法 |
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| 引用本文： | 曹保江,刘承志,王英.用三相电流源测试阻抗匹配平衡变压器差动保护比率特性曲线的方法[J].电力系统保护与控制,2009,37(1):61-64. |
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| 作者姓名： | 曹保江 刘承志 王英 |
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| 作者单位： | 西南交通大学电气工程学院，四川 成都 610031 |
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| 摘 要： | 为解决采用传统的测试方法难以完成牵引供电系统普遍采用的阻抗匹配平衡变压器差动保护特性曲线的测试的问题，提出了一种利用现有继电保护测试仪三相电流源实现该保护特性曲线的测试方法，并采用该方法进行了实测,验证了这种方法的有效性。
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| 关 键 词： | 阻抗匹配平衡变压器 差动保护 特性曲线 测试方法 |
Measuring method of ratio braking characteristic curve on differential protection for impedance-matching balance transformer with three-phase current power supply |
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| CAO Bao-jiang,LIU Cheng-zhi,WANG Ying.Measuring method of ratio braking characteristic curve on differential protection for impedance-matching balance transformer with three-phase current power supply[J].Power System Protection and Control,2009,37(1):61-64. |
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| Authors: | CAO Bao-jiang LIU Cheng-zhi WANG Ying |
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| Affiliation: | School of Electrical Engineering;Southwest Jiaotong University;Chengdu 610031;China |
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| Abstract: | Impedance-matching balance transformer has been used widely in traction power system.It is difficult to measure the ratio braking characteristic curve on differential protection of this transformer.This paper presents a method for the curve measuring with the three-phase current power supply of protective testing instrument.Meanwhile,the experiments prove its effectiveness. |
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| Keywords: | impedance-matching balance transformer differential protection ratio braking characteristic curve measuring method |
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