| 主变差动保护及后备保护带负荷检查中的理论计算 |
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| 引用本文： | 丁新. 主变差动保护及后备保护带负荷检查中的理论计算[J]. 贵州电力技术, 2012, 0(2): 55-57 |
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| 作者姓名： | 丁新 |
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| 作者单位： | 遵义供电局,贵州遵义563000 |
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| 摘 要： | 以1lOkV城中变3号主变带负荷检查现场记录数据为依据，详细介绍了通过理论计算判断主变差动保护及后备保护带负荷检查是否合格的方法。虽然当前已经有很多智能仪器仪表或应用软件能自动完成主变带负荷检查相关工作，但辅以手工理论计算方法使带负荷检查结果有双重或多重判据，更能坚定带负荷检查的最终结果。使保护人员感到心中有数。
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| 关 键 词： | 差动保护：后备保护 |
Theoretical calculation in the onload inspection of the main transformer differential protection and backup protection |
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| Ding Xin. Theoretical calculation in the onload inspection of the main transformer differential protection and backup protection[J]. Guizhou Electric Power Technology, 2012, 0(2): 55-57 |
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| Authors: | Ding Xin |
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| Affiliation: | Ding Xin ( Zunyi Power Supply Bureau, Zunyi 563000 Guizhou, China) |
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| Abstract: | According to the onload inspection living recorded data in the 110kV substation 3# main transformer, the paper presents the method of judging the main transformer differential protection through theoretical calculation and the inspecting the onload backup protection. Although there are lots of intelligent instruments and application software that can automatically finish the main transformer onload inspection and relevant work nowadays, the assistant theoretical calculation enable the double or multiplex criterion to the onload inspection result, which corroborates the onload inspection final result. |
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| Keywords: | differential protection backup protection |
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