| 微机型变压器比率差动保护校验方法分析与应用 |
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| 引用本文： | 李佳容,李屹.微机型变压器比率差动保护校验方法分析与应用[J].重庆电力高等专科学校学报,2010,15(1):22-25. |
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| 作者姓名： | 李佳容 李屹 |
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| 作者单位： | 重庆市电力公司北碚供电局,重庆,400700;重庆市电力公司北碚供电局,重庆,400700 |
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| 摘 要： | 从变压器比率差动保护的原理出发，分析其校验的难点，然后以国电南自SGT756变压器保护为例，提出一种变压器比率差动保护动作特性测试的方法——平衡电流法，并介绍其校验的原理和步骤，以实例验证其有效性。
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| 关 键 词： | 变压器 差动保护 比率制动特性 测试方法 平衡电流法 |
Analysis and Application of Verification Method for Ratio Differential Protection of Microprocessor-based Transformer |
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| LI Jia-rong,LI Yi.Analysis and Application of Verification Method for Ratio Differential Protection of Microprocessor-based Transformer[J].Journal of Chongqing Electric Power College,2010,15(1):22-25. |
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| Authors: | LI Jia-rong LI Yi |
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| Affiliation: | Beibei Power Supply Bureau of Chongqing Electric Power Corp.;Chongqing 400700;China |
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| Abstract: | Based on the principle of transformer ratio-differential protection,this paper analyzes the difficulties of its verification;then taking SGT756 transformer protection of Guodian Nanzi as an example,presents a method-a balanced current method--to test operation characteristic of transformer ratio-differential protection,and introduces principles and steps of its verification to verify the validity by an instance. |
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| Keywords: | transformer differential protection ratio-restrained characteristic verification methods balanced current method |
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