| 调压不当导致主变压器后备保护动作分析 |
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| 引用本文： | 罗来龙,王超,陈禹志,徐攀峰,文芳,覃文继,孙晓佳.调压不当导致主变压器后备保护动作分析[J].湖南电力,2021,41(2):78-82. |
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| 作者姓名： | 罗来龙 王超 陈禹志 徐攀峰 文芳 覃文继 孙晓佳 |
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| 作者单位： | 国网西藏电力有限公司, 西藏 拉萨850000;国网西藏电力有限公司电力科学研究院, 西藏 拉萨850000 |
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| 摘 要： | 针对一起调压措施执行不当导致的主变后备保护动作案例,梳理主变分接头档位调节过程,剖析档位调节后主变后备保护误动机理,分析了事故原因,并通过PSCAD对分析结果进行了仿真验证.
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| 关 键 词： | 主变并列 电压调节 环流 电磁暂态仿真 |
Analysis of Main Transformer Backup Protection Caused by Improper Implementation of Voltage Regulation Measures |
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| LUO Lailong,WANG Chao,CHEN Yuzhi,XU Panfeng,WEN Fang,QIN Wenji,SUN Xiaojia.Analysis of Main Transformer Backup Protection Caused by Improper Implementation of Voltage Regulation Measures[J].Hunan Electric Power,2021,41(2):78-82. |
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| Authors: | LUO Lailong WANG Chao CHEN Yuzhi XU Panfeng WEN Fang QIN Wenji SUN Xiaojia |
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| Affiliation: | (State Grid Tibet Electric Power Co.,Ltd.,Lasa 850000,China;State Grid Tibet Electric Power Co.,Ltd.,Electric Power Hesearch Institute,Lasa 850000,China) |
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| Abstract: | In view of a case of backup protection of main transformer caused by improper implementation of voltage regulation measures,this paper combs the process of the shift adjustment of main transformer joint,analyzes the mechanism of the backup protection maloperation of main transformer after the shift adjustment,and analyzes the fault causes.At last the results are verified by simulation with PSCAD. |
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| Keywords: | main transformer paralleling voltage regulation circulating current electromagnetic transient simulation |
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