電(dian)壓(ya)繼電(dian)器(qi)和電(dian)流(liu)繼電(dian)器(qi)放(fang)在壹起如何(he)區分(fen) 在(zai)高壓(ya)配(pei)電(dian)運(yun)行或者(zhe)低壓(ya)維(wei)修過程中,我(wo)們電(dian)力(li)作(zuo)業人員(yuan)經常都(dou)會(hui)碰(peng)到(dao)各(ge)種各樣(yang)的(de)繼(ji)電(dian)器(qi):中間(jian)繼(ji)電(dian)器(qi),時間(jian)繼(ji)電(dian)器(qi),速(su)度繼(ji)電(dian)器(qi)等(deng)等(deng),當然也(ye)包(bao)括(kuo)我(wo)們常用(yong)的(de)電(dian)壓(ya)繼電(dian)器(qi)和電(dian)流(liu)繼電(dian)器(qi),那麽(me)電(dian)壓(ya)繼電(dian)器(qi)和電(dian)流(liu)繼電(dian)器(qi)有什(shen)麽(me)區別呢(ne)?壹般(ban)都(dou)應用於(yu)什(shen)麽(me)場合?
壹,電(dian)流(liu)繼電(dian)器(qi)與電(dian)壓(ya)繼電(dian)器(qi)在結(jie)構上的區別(bie)。
主(zhu)要是(shi)線圈(quan)不(bu)同。
電(dian)流(liu)繼電(dian)器(qi)的線圈(quan)與(yu)負載串(chuan)聯以(yi)反(fan)映(ying)負載電(dian)流(liu),故它的線圈(quan)匝(za)數(shu)少(shao)而(er)導(dao)線粗,這樣(yang)通(tong)過(guo)電(dian)流(liu)時的(de)壓降很小,不會(hui)影響(xiang)負載電(dian)路的電(dian)流(liu)。電(dian)壓(ya)繼電(dian)器(qi)的線圈(quan)與(yu)負載並聯以(yi)反(fan)映(ying)負載電(dian)壓(ya),其(qi)線圈(quan)匝(za)數(shu)多(duo)而(er)導(dao)線細。
二,電(dian)流(liu)型信(xin)號(hao)繼電(dian)器(qi)和電(dian)壓(ya)型信(xin)號(hao)繼電(dian)器(qi)的區(qu)別?在使用中如何(he)區分(fen)?
電(dian)流(liu)型信(xin)號(hao)繼電(dian)器(qi);電(dian)壓(ya)低,電(dian)流(liu)大,線經粗,圈(quan)數(shu)少(shao),阻抗(kang)小,體積(ji)小,壹般(ban)是(shi)與用電(dian)器(qi)串(chuan)聯使用。
電(dian)壓(ya)型信(xin)號(hao)繼電(dian)器(qi);電(dian)壓(ya)高,電(dian)流(liu)小,線經細,圈(quan)數(shu)多(duo),阻抗(kang)大,體積(ji)大,壹般(ban)是(shi)通過開關直(zhi)接接在電(dian)源兩端。
三(san),電(dian)壓(ya)繼電(dian)器(qi)、電(dian)流(liu)繼電(dian)器(qi)的特(te)點(dian)與(yu)應用場合。
(1)電(dian)壓(ya)繼電(dian)器(qi)的特(te)點(dian)與(yu)應用場合。
電(dian)壓(ya)繼電(dian)器(qi)是(shi)壹種常(chang)用的電(dian)磁式繼電(dian)器(qi),電(dian)壓(ya)繼電(dian)器(qi)用於(yu)電(dian)力(li)拖動系(xi)統(tong)的電(dian)壓(ya)保護和控制(zhi)。
電(dian)壓(ya)繼電(dian)器(qi)的線圈(quan)並聯接入主(zhu)電(dian)路,感測(ce)主(zhu)電(dian)路的線路電(dian)壓(ya);觸點(dian)接於(yu)控制(zhi)電(dian)路,為(wei)執行元(yuan)件(jian)。
過電(dian)壓(ya)繼電(dian)器(qi)(FV)用於(yu)線路的過電(dian)壓(ya)保護,其(qi)吸(xi)合整(zheng)定值為(wei)被保護線路額定電(dian)1.05~1.2倍(bei)。當被保護的線路電(dian)壓(ya)正常(chang)時,銜鐵(tie)不動(dong)作(zuo);當被保護線路的電(dian)壓(ya)高於(yu)額(e)定值,達到(dao)過(guo)電(dian)壓(ya)繼電(dian)器(qi)的整(zheng)定值時(shi),銜(xian)鐵(tie)吸(xi)合,觸點(dian)機構動作(zuo),控制(zhi)電(dian)路失(shi)電(dian),控制(zhi)接觸器(qi)及時(shi)分(fen)斷(duan)被(bei)保護電(dian)路。
(2)電(dian)流(liu)繼電(dian)器(qi)的特(te)點(dian)與(yu)應用場合。
電(dian)流(liu)繼電(dian)器(qi)是(shi)壹種常(chang)用的電(dian)磁式繼電(dian)器(qi),電(dian)流(liu)繼電(dian)器(qi)用於(yu)電(dian)力(li)拖動系(xi)統(tong)的電(dian)流(liu)保護和控制(zhi)。其(qi)線圈(quan)串(chuan)聯接入主(zhu)電(dian)路,用來感測(ce)主(zhu)電(dian)路的線路電(dian)流(liu);觸點(dian)接於(yu)控制(zhi)電(dian)路,為(wei)執行元(yuan)件(jian)。
電(dian)流(liu)繼電(dian)器(qi)反(fan)映(ying)的是(shi)電(dian)流(liu)信(xin)號(hao)。常用(yong)的(de)電(dian)流(liu)繼電(dian)器(qi)有欠(qian)電(dian)流(liu)繼電(dian)器(qi)和過(guo)電(dian)流(liu)繼電(dian)器(qi)兩種(zhong)。