Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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电力自动化设备机柜屏蔽效能测试与整改

来源:电工电气发布时间:2016-05-30 14:30 浏览次数:9
电力自动化设备机柜屏蔽效能测试与整改
 
肖保明
(国网电力科学研究院 实验验证中心,江苏 南京 210003)
 
    摘 要:介绍了电力机柜屏蔽效能的测试方法和整改措施,分析了电力机柜屏蔽效能与机柜内部的电力二次设备辐射电磁抗扰度之间的关系,并提出了一种有效提高电力机柜内部二次设备或系统电磁辐射抗扰度的方法,通过实验验证表明,在机柜开口的屏蔽网罩,必须保证它的电连续性,开口或连接不好的缝隙,会使屏蔽网罩的作用大幅降低,甚至没有屏蔽作用。
    关键词:屏蔽效能;二次设备;电力机柜;电磁兼容
中图分类号:TM76 文献标识码:A 文章编号:1007-3175(2016)05-0042-04
 
Shielding Effectiveness Measurement and Reform of Power Automation Equipment Cabinet
 
XIAO Bao-ming
(The Experiment & Verification Center of State Grid Electric Power Research Institute, Nanjing 210003, China)
 
    Abstract: Introduction was made to a test method of power cabinet shielding effectiveness. The paper analyzed the relationship between the power cabinet shielding effectiveness and the radiation electromagnetic immunity of the electric power secondary equipment within the cabinet and raised a kind of effective method to increase the radiation electromagnetic immunity of secondary equipment and system within in the electric cabinets. The experiment results show that the shielding mesh enclosure of open end electric cabinets should be switched on constantly, otherwise the function of shielding mesh enclosure would be reduced greatly, even there is non any shielding functions.
    Key words: shielding effectiveness; secondary equipment; electric cabinet; electromagnetic compatibility
 
参考文献
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