| 两起同型号单断口330kVGIS断路器击穿故障分析 |
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| 引用本文： | 倪辉,相中华,刘威锋,马飞越.两起同型号单断口330kVGIS断路器击穿故障分析[J].防灾减灾工程学报,2019(2):41-45. |
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| 作者姓名： | 倪辉 相中华 刘威锋 马飞越 |
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| 作者单位： | 国网宁夏电力有限公司电力科学研究院,宁夏银川 750011;国网宁夏电力有限公司,宁夏银川 750001 |
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| 摘 要： | 以两起同型号单断口330 kV GIS断路器击穿故障为例,结合返厂解体、电场仿真、工艺模拟试验、绝缘裕度验证试验等,对其产生原因进行分析,并提出相应的防范措施。结果表明:单断口结构在无异物的情况下可正常运行,绝缘裕度符合要求,两次击穿故障主要是断路器内存在异物,需从装配至现场安装全过程管控。
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| 关 键 词： | 断路器 单断口 电场仿真 绝缘裕度 |
Analysis on circuit breakers breakdown failures of 330 kV GIS with single - break of the same type for two cases |
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| NI Hui,XIANG Zhonghu,LIU Weifeng,MA Feiyue.Analysis on circuit breakers breakdown failures of 330 kV GIS with single - break of the same type for two cases[J].Journal of Disaster Prevent and Mitigation Eng,2019(2):41-45. |
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| Authors: | NI Hui XIANG Zhonghu LIU Weifeng MA Feiyue |
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| Institution: | Power Research Institute of State Grid Ningxia Electric Power Co , Ltd , Yinchuan Ningxia 750011 , China;State Grid Ningxia Electric Power Co , Ltd , Yinchuan Ningxia 750001 , China |
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| Abstract: | The two breakdown faults of single-break 330 kV GIS circuit breaker with the same type were taken as an example, combining with the disintegration, electric field simulation, process simu-lation test and insulation margin verification test , the causes were analyzed and corresponding preven-tive measures were presented. The results show that the single-break structure can operate normallywithout foreign particles, and the insulation margin meets the requirements. The two breakdown faultswere mainly caused by foreign particles in the circuit breaker, which need to be controlled from as- sembly to site installation. |
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