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关于afci电弧故障断路器厂家研究设计在佛山选上海继一

2019-05-08 09:02:54      点击:

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AFCI/AFDD与GFCI(或RCCB)配合使用,可提供电弧和漏电两种故障保护兼有的家居电气故障保护,通常是AFCI/AFDD-GFCI插座方式。美国EATON公司已开发出在AFCI/AFDD壳体内集成接地故障(漏电)保护功能的终端产品。AFCI/AFDD采用电子技术识别电弧状态,故障电弧检测是电弧故障保护的关键环节。关于电弧及故障电弧检测的研究始于20世纪80年代末和90年代初的美国。利用电弧放电的光、热、声和电磁等特性,(1)依据电弧波形特性:通过判断电流波形导数以及累积电弧周期是否均超过设定阀值来识别电弧故障。(2)依据电弧高频能量突变:通过检测电流信号高频部分的能量突变识别电弧,并通过检测电弧次数来识别电弧故障。上海继一电气有限公司HQPhxup,494656gtho9ZMDFGQO

作为低压配电系统尤其是建筑供配电的重要终端防火设备,我国与国外的AFCI/AFDD技术发展及产品应用相比还有很大差距。外资企业已开始了在国内的AFCI/AFDD战略布局,在中国专利申请量逐年递增。中国高校应注重推动AFCI/AFDD专利技术转移,寻求专有技术获利;本土企业需加强AFCI/AFDD的技术研发及专利化,储备好长远发展所需的战略资产,并借鉴外资企业的市场战略,努力培育核心竞争力。随着人们对家居防火安全保护产品的需求增长及国内AFCI/AFDD技术标准实施,AFCI/AFDD技术的研究及应用普及将会深入并产生巨大社会和经济效益。高居火灾危害首位的电气火灾的防发重要,防范火患于未“燃”更趋重视。

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