| 一起换流站直流避雷器击穿的原因分析 |
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| 引用本文： | 赵欣洋,刘 婷.一起换流站直流避雷器击穿的原因分析[J].防灾减灾工程学报,2014(4):16-23. |
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| 作者姓名： | 赵欣洋 刘 婷 |
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| 作者单位： | 国网宁夏电力公司检修公司银川东换流变电站, 宁夏 银川 750411 |
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| 摘 要： | 针对银川东换流站直流滤波器避雷器击穿故障,根据实测数据与仿真结果对差动保护动作过程进行分析,找出故障原因。分析结果表明:直流滤波器高压避雷器不能满足技术协议对最小特性的要求是造成故障的主要原因;应结合实际使用的保护策略确定直流输电工程设备的绝缘水平,并将其控制在合理的范围内。
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| 关 键 词： | 高压直流 差动保护 避雷器 直流滤波器 |
Action analysis of DC filter differential protection device caused by lightning arrester breakdown |
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| ZHAO Xinyang,LIU Ting.Action analysis of DC filter differential protection device caused by lightning arrester breakdown[J].Journal of Disaster Prevent and Mitigation Eng,2014(4):16-23. |
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| Authors: | ZHAO Xinyang LIU Ting |
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| Institution: | Yinchuan Eastern Converter Station of Maintenance Filiale of State Grid Ningxia Power Co.,Yinchuan Ningxia 750411 ,China |
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| Abstract: | Aiming at the breakdown fault of DC filter lightning arrester in Yinchuan EasternConverter Station,analyzes the action process of differential protection on the basis of the actualmeasure data and simulation result,find out the fault cause. The analysis result shows that:the mainreason is that arrester of DC filter can not meet the requirements of technology agreement for minimumfeature;should be combined with the actual use of protection strategy determine the insulation levelof DC power transmission engineering equipments,and control it in a reasonable range. |
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