| 某110kV变电站1#主变投入差动保护时动作的分析与处理 |
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| 引用本文： | 李敏霞,袁文嘉,姬希军. 某110kV变电站1#主变投入差动保护时动作的分析与处理[J]. 电力学报, 2009, 24(3): 239-240,252 |
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| 作者姓名： | 李敏霞 袁文嘉 姬希军 |
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| 作者单位： | 1. 河南省电力公司许昌供电公司,河南,许昌,461000
2. 许继电气公司,河南,许昌,461000 |
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| 摘 要： | 介绍了110 kV湖州站1#变压器在差动保护投入时跳闸事故,通过进行现场保护特性试验、绝缘检查、二次回路电压测量,经过分析,得出事故原因：差动保护装置没有TA断线告警功能,对主变中压侧C相开路没有提前告警,从而造成了1#主变差动保护跳闸事故。最后针对事故的特点提出了提前消除事故隐患的纠正措施,保证了电网的安全稳定运行。
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| 关 键 词： | 变电站 差动保护 断线 分析处理 |
Analysis and Treatment for Huzhou Station 110 kV 1# the Main Variation Protection Action |
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| LI Min-xia,YUAN Wen-jia,JI Xi-jun. Analysis and Treatment for Huzhou Station 110 kV 1# the Main Variation Protection Action[J]. Journal of Electric Power, 2009, 24(3): 239-240,252 |
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| Authors: | LI Min-xia YUAN Wen-jia JI Xi-jun |
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| Affiliation: | 1.Xuchang supply company;Xuchang 461000;China;2.Xuji Electric company;China |
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| Abstract: | Huzhou 110 kV transformer station 1# in the input differential protection tripping accidents,through on-site protection characteristic test,insulation inspection,secondary circuit voltage measurement.After analyzing the cause of the accident: differential protection device has not CT disconnection alarming function,the main change in the pressure-side C-phase open circuit there is no advanced warning,resulting in a 1# Main Differential Protection of tripping accidents.Finally,the characteristics of the inci... |
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| Keywords: | substation differential protection disconnected analysis of treatment |
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