| 变频器10 kV断路器柜速断保护动作故障分析及处理 |
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| 引用本文： | 甘捷,姚孝庭,于景国,朱志强.变频器10 kV断路器柜速断保护动作故障分析及处理[J].东北电力技术,2021,42(1):41-43,47. |
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| 作者姓名： | 甘捷 姚孝庭 于景国 朱志强 |
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| 作者单位： | 国家管网集团川气东送天然气管道有限公司,湖北 武汉 430000;国家管网集团川气东送天然气管道有限公司,湖北 武汉 430000;国家管网集团川气东送天然气管道有限公司,湖北 武汉 430000;国家管网集团川气东送天然气管道有限公司,湖北 武汉 430000 |
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| 摘 要： | 针对某压气站10 kV断路器柜断路器速断保护动作事件和阻尼电阻出现相间放电现象,结合实际,将断路器柜速断保护实际电流值与故障录波值进行对比,利用排除对比法对系统所有10 kV电气设备进行试验分析,最后确认故障点在变频器进线柜的整流二极管处,成功解决了10 kV断路器柜速断保护动作问题。
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| 关 键 词： | 速断保护 励磁涌流 阻尼电阻 变频器 整流二极管 |
Analysis and Treatment of Quick-Break Protection Fault for 10 kV Switchgear in Frequency Converter |
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| GAN Jie,YAO Xiaoting,YU Jingguo,ZHU Zhiqiang.Analysis and Treatment of Quick-Break Protection Fault for 10 kV Switchgear in Frequency Converter[J].Northeast Electric Power Technology,2021,42(1):41-43,47. |
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| Authors: | GAN Jie YAO Xiaoting YU Jingguo ZHU Zhiqiang |
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| Affiliation: | (China Petrochemical Co.,Ltd.,Chuanqi Dongsong Natural Gas Transmission Pipeline Co.,Ltd.,Wuhan,Hubei 430000,China) |
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| Abstract: | In view of the quick-break protection event of 10 kV switchgear breaker in a compressor station and the phenomenon of inter phase discharge of damping resistance,it utilizes the actual current value of the quick-break protection of medium-voltage switchgear and the fault record value for comparison with practice.In order to find the fault point,it testes each 10 kV electrical equipment in the system loop using the method of elimination comparison.The experimental result shows that the trip point is just at the rectifier diode of the converter inlet cabinet,which solves the problem of quick-break protection of 10 kV switch cabinet. |
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| Keywords: | quick-break protection magnetizing inrush damping resistance frequency converter rectifier diode |
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