| 故障树分析法在电子式过载保护继电器中的应用 |
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| 引用本文： | 赵靖英,王景芹,王海涛,赵新英.故障树分析法在电子式过载保护继电器中的应用[J].继电器,2004,32(19):39-41,58. |
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| 作者姓名： | 赵靖英 王景芹 王海涛 赵新英 |
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| 作者单位： | 1.河北工业大学电器研究所,天津 300130;2.河北省建筑设计院,河北 石家庄 050011 |
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| 摘 要： | 电子式过载保护继电器主要用于实现电动机的过载保护,其可靠性的高低直接影响电动机的可靠运行。在简要介绍了智能化电子式过载保护继电器硬件结构的基础上,采用故障树分析法(FTA法)对其进行了可靠性的定性分析。利用建立的故障树,求出了系统的最小割集,从而找出了系统的关键环节,并提出了提高电子式过载保护继电器可靠性的一些措施。
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| 关 键 词： | 过载保护继电器 可靠性 故障树 故障树分析法（FTA法） 定性分析 |
| 文章编号： | 1003-4897(2004)19-0039-03 |
Application of fault tree analysis in the electronic over-load protective relay |
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| ZHAO Jing-ying,WANG Jing-qin,WANG Hai-tao,ZHAO Xin-ying.Application of fault tree analysis in the electronic over-load protective relay[J].Relay,2004,32(19):39-41,58. |
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| Authors: | ZHAO Jing-ying WANG Jing-qin WANG Hai-tao ZHAO Xin-ying |
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| Affiliation: | ZHAO Jing-ying~1,WANG Jing-qin~1,WANG Hai-tao~1,ZHAO Xin-ying~2 |
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| Abstract: | The electronic over-load protective relay is mainly used to realize the over-load protection of the motor. Its reliability directly influences the reliable operation of the motor. After the hardware diagram of the intelligent relay is briefly introduced, qualitative analysis of its reliability is carried out. By using the fault tree, the minimum sets are solved and the key parts are pointed out. And some measures about improving the reliability of the relay are brought forward. |
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| Keywords: | over-load protective relay reliability fault tree fault tree analysis (FTA) qualitative analysis |
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