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  • 电力系统继电器的网络化
    2 2018-06

    电力系统继电器的网络化

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    ​  计(ji)算机网络作为信(xin)息和(he)数(shu)据通(tong)信(xin)工具已成为信(xin)息时代的(de)技术支柱,使人(ren)类生产和(he)社(she)会生活(huo)的(de)面貌发生了根本变化。它深(shen)刻影响着各个(ge)工业(ye)(ye)领(ling)域(yu),也为各个(ge)工业(ye)(ye)领(ling)域(yu)提(ti)供了强有(you)力的(de)通(tong)信(xin)手段。到(dao)目前为止,除了差(cha)动保护(hu)和(he)纵联保护(hu)外(wai),所有(you)继电保护(hu)装置(zhi)都只能反应保护(hu)安装处的(de)电气量。

  • 全球自动继电器市场规模在2021年将达到10.33亿美元
    2 2018-06

    全球自动继电器市场规模在2021年将达到10.33亿美元

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    继电(dian)器(qi)是(shi)具有(you)隔离功能的(de)自(zi)动(dong)(dong)开关(guan)元(yuan)(yuan)件,广泛应用(yong)于遥控、遥测、通讯、自(zi)动(dong)(dong)控制、机电(dian)一体化及(ji)电(dian)力电(dian)子(zi)设备中,是(shi)最重要的(de)控制元(yuan)(yuan)件之一。根据国际市场研(yan)究(jiu)机构MarketsandMarkets发布的(de)研(yan)究(jiu)报告认为,受(shou)到配电(dian)自(zi)动(dong)(dong)化投资(zi)需求(qiu)增加推动(dong)(dong),到2021年(nian),全球自(zi)动(dong)(dong)继电(dian)器(qi)市场规模将达到10.33亿美元(yuan)(yuan),期间年(nian)复合增率(lv)达到3.9%。

  • 行业知识:继电器正确使用方法技术分析
    2 2018-06

    行业知识:继电器正确使用方法技术分析

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    1、继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)额(e)定工(gong)(gong)作(zuo)(zuo)电(dian)(dian)(dian)(dian)(dian)压(ya)的(de)(de)选择 继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)额(e)定工(gong)(gong)作(zuo)(zuo)电(dian)(dian)(dian)(dian)(dian)压(ya)是继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)最(zui)主要(yao)的(de)(de)一(yi)(yi)项技术参数。在(zai)使用继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)时,应该首先考虑所(suo)在(zai)电(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(即继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)线圈(quan)(quan)所(suo)在(zai)的(de)(de)电(dian)(dian)(dian)(dian)(dian)路(lu)(lu))的(de)(de)工(gong)(gong)作(zuo)(zuo)电(dian)(dian)(dian)(dian)(dian)压(ya),继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)的(de)(de)额(e)定工(gong)(gong)作(zuo)(zuo)电(dian)(dian)(dian)(dian)(dian)压(ya)应等于所(suo)在(zai)电(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)工(gong)(gong)作(zuo)(zuo)电(dian)(dian)(dian)(dian)(dian)压(ya)。一(yi)(yi)般所(suo)在(zai)电(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)工(gong)(gong)作(zuo)(zuo)电(dian)(dian)(dian)(dian)(dian)压(ya)是继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)额(e)定工(gong)(gong)作(zuo)(zuo)电(dian)(dian)(dian)(dian)(dian)压(ya)的(de)(de)0.86。注意所(suo)在(zai)电(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)工(gong)(gong)件电(dian)(dian)(dian)(dian)(dian)压(ya)千万不能超过继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)额(e)定工(gong)(gong)作(zuo)(zuo)电(dian)(dian)(dian)(dian)(dian)压(ya),否则继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)线圈(quan)(quan)容易(yi)烧(shao)毁。另外,有些(xie)(xie)集成电(dian)(dian)(dian)(dian)(dian)路(lu)(lu),例(li)(li)如NE555电(dian)(dian)(dian)(dian)(dian)路(lu)(lu)是可以直接(jie)驱动继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)工(gong)(gong)作(zuo)(zuo)的(de)(de),而有些(xie)(xie)集成电(dian)(dian)(dian)(dian)(dian)路(lu)(lu),例(li)(li)如COMS电(dian)(dian)(dian)(dian)(dian)路(lu)(lu)输出电(dian)(dian)(dian)(dian)(dian)流(liu)小,需要(yao)加一(yi)(yi)级晶体(ti)管放大(da)电(dian)(dian)(dian)(dian)(dian)路(lu)(lu)方可驱动继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi),这就应考虑晶体(ti)管输出电(dian)(dian)(dian)(dian)(dian)流(liu)应大(da)于继(ji)电(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)的(de)(de)额(e)定工(gong)(gong)作(zuo)(zuo)电(dian)(dian)(dian)(dian)(dian)流(liu)。

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