| 变电站断路器合闸储能弹簧断裂故障分析 |
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| 引用本文： | 贺,黠.变电站断路器合闸储能弹簧断裂故障分析[J].防灾减灾工程学报,2014(1):59-61. |
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| 作者姓名： | 贺 黠 |
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| 作者单位： | 华能宁夏大坝发电有限责任公司, 宁夏 青铜峡 751600 |
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| 摘 要： | 针对某变电站 231 断路器合闸储能弹簧断裂,引发断路器拒绝合闸故障问题,通过金相分析的方法进行了分析,结果表明:此次断路器拒绝合闸故障的原因是合闸弹簧材质不符合要求,质量不合格,引发合闸弹簧折断,造成合闸不成功,断路器辅助节点未切换,合闸线圈长时间带电而烧毁。
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| 关 键 词： | 断路器 合闸 储能弹簧 断裂 金相分析 |
Faulty analysis of circuit breaker closing stored energy spring fracture in a substation |
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| HE Xia.Faulty analysis of circuit breaker closing stored energy spring fracture in a substation[J].Journal of Disaster Prevent and Mitigation Eng,2014(1):59-61. |
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| Authors: | HE Xia |
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| Institution: | Huaneng Ningxia Daba Power Generation Co.,Ltd.,Qingtongxia Ningxia 751600 ,China |
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| Abstract: | Aiming at the problem of circuit breaker miss close caused by 231 circuit breaker closingstored energy spring fracture in a substation,through metallurgical analysis finds out the causes.The analysis results show that closing spring material is unqualified,which lead to spring break,sothe closing missed and the auxilary contact of the circuit breaker has not switched,closing coilkeeps live for a long time and burn out. |
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