| 10 kV开关手车控制回路断线原因分析及处理方法 |
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| 引用本文： | 陆琳.10 kV开关手车控制回路断线原因分析及处理方法[J].江苏电机工程,2014(5):18-20. |
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| 作者姓名： | 陆琳 |
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| 作者单位： | 镇江供电公司; |
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| 摘 要： | 开关控制回路完好与否,直接影响操作和保护命令能否正确执行.一旦控制回路出现断线等异常,会造成线路故障时无法跳闸,危及电网安全.通过对10 kV开关手车控制回路以及开关机构回路的分析,总结了控制回路断线的原因,从运行人员的层面提出了检查和判断控制回路断线的方法,通过现场实例分析了某110 kV变电站10 kV电容器开关发生控制回路断线的原因,并提出了处理方法,为解决类似问题提供参考.
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| 关 键 词： | 开关手车 控制回路断线 监视回路 接点 行程开关 |
An Accident Analysis of 10 kV Handcart Switch Cabinet Control Circuit Break |
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| LU Lin.An Accident Analysis of 10 kV Handcart Switch Cabinet Control Circuit Break[J].Jiangsu Electrical Engineering,2014(5):18-20. |
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| Authors: | LU Lin |
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| Affiliation: | LU Lin (Zhenjiang Power Supply Company, Zhenjiang 212000, China) |
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| Abstract: | The control circuit of switch in cabinet directly affects the operation and the executing of relay protection. Abnormal control circuit would lead to tripping failure, which endangers power grid＇s security. In this paper, the control circuit of 10 kV handcart switch cabinet and the switching mechanism circuit are analyzed. Also, the reasons of control circuit breaking are summarized, and the methods for inspecting faults in control circuit are proposed. A detailed analysis of the causes and the treatment methods of 10 kV capacitor switch control circuit break in a110 kV substations are provided by using a practical example. This analysis provides a reference for future similar problems. |
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| Keywords: | handcart switch control circuit break monitoring circuit contact overtravel-limit switch |
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