低壓電器有哪些分類方法

1、按用途和(he)控(kong)(kong)制(zhi)(zhi)對象(xiang)不同(tong)，可將(jiang)低(di)(di)壓(ya)(ya)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)分(fen)為(wei)配電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)和(he)控(kong)(kong)制(zhi)(zhi)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)。用于(yu)電(dian)(dian)(dian)(dian)能的輸送和(he)分(fen)配的電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)稱為(wei)低(di)(di)壓(ya)(ya)配電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)，這類電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)包括刀開關、轉(zhuan)換開關、空氣斷路(lu)器(qi)(qi)(qi)(qi)(qi)和(he)熔斷器(qi)(qi)(qi)(qi)(qi)等(deng)。用于(yu)各(ge)(ge)種控(kong)(kong)制(zhi)(zhi)電(dian)(dian)(dian)(dian)路(lu)和(he)控(kong)(kong)制(zhi)(zhi)系統的電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)稱為(wei)控(kong)(kong)制(zhi)(zhi)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)，這類電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)包括接觸器(qi)(qi)(qi)(qi)(qi)、起動器(qi)(qi)(qi)(qi)(qi)和(he)各(ge)(ge)種控(kong)(kong)制(zhi)(zhi)繼電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)(qi)等(deng)。

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2、按操作方(fang)式不同，可將低壓電(dian)(dian)(dian)器(qi)(qi)分(fen)為(wei)(wei)自動(dong)(dong)電(dian)(dian)(dian)器(qi)(qi)和(he)手(shou)動(dong)(dong)電(dian)(dian)(dian)器(qi)(qi)。通(tong)(tong)過(guo)電(dian)(dian)(dian)器(qi)(qi)本身參數變化或外來信(xin)號（如(ru)電(dian)(dian)(dian)、磁(ci)、光、熱等）自動(dong)(dong)完成接(jie)(jie)通(tong)(tong)、分(fen)斷(duan)、起動(dong)(dong)、反向和(he)停(ting)止等動(dong)(dong)作的電(dian)(dian)(dian)器(qi)(qi)稱(cheng)為(wei)(wei)自動(dong)(dong)電(dian)(dian)(dian)器(qi)(qi)，常(chang)用(yong)(yong)的自動(dong)(dong)電(dian)(dian)(dian)器(qi)(qi)有接(jie)(jie)觸器(qi)(qi)、繼電(dian)(dian)(dian)器(qi)(qi)等。通(tong)(tong)過(guo)人(ren)力直接(jie)(jie)操作來完成接(jie)(jie)通(tong)(tong)、分(fen)斷(duan)、起動(dong)(dong)、反向和(he)停(ting)止等動(dong)(dong)作的電(dian)(dian)(dian)器(qi)(qi)稱(cheng)為(wei)(wei)手(shou)動(dong)(dong)電(dian)(dian)(dian)器(qi)(qi)。常(chang)用(yong)(yong)的手(shou)動(dong)(dong)電(dian)(dian)(dian)器(qi)(qi)有刀開(kai)關、轉換開(kai)關和(he)主令(ling)電(dian)(dian)(dian)器(qi)(qi)等。

3、按工(gong)作(zuo)原(yuan)理，低壓電(dian)(dian)(dian)器可(ke)分為電(dian)(dian)(dian)磁式(shi)電(dian)(dian)(dian)器和非電(dian)(dian)(dian)量控制電(dian)(dian)(dian)器。電(dian)(dian)(dian)磁式(shi)電(dian)(dian)(dian)器是依據電(dian)(dian)(dian)磁感應原(yuan)理來工(gong)作(zuo)的(de)電(dian)(dian)(dian)器，如(ru)接(jie)觸器、各類電(dian)(dian)(dian)磁式(shi)繼電(dian)(dian)(dian)器等。非電(dian)(dian)(dian)量控制電(dian)(dian)(dian)器的(de)工(gong)作(zuo)是靠外力或某種(zhong)非電(dian)(dian)(dian)量的(de)變化而動作(zuo)的(de)電(dian)(dian)(dian)器，如(ru)行程開關、速度繼電(dian)(dian)(dian)器等。

常見低壓電器是怎么工作的

1、刀開關

刀(dao)開關(guan)又(you)稱為閘刀(dao)開關(guan)或隔(ge)離開關(guan)，它(ta)是(shi)通過底座(zuo)上的靜觸頭與刀(dao)夾座(zuo)相(xiang)楔合（或分(fen)離），來控制電路接通（或分(fen)斷(duan)）的低壓電器設備。

2、熔斷器

熔(rong)(rong)斷(duan)器(qi)也被稱為保險(xian)絲，IEC127標準(zhun)將(jiang)它定義為“熔(rong)(rong)斷(duan)體（fuse-link）”。熔(rong)(rong)斷(duan)器(qi)的工作(zuo)原理很簡單，當過載或(huo)短路(lu)電(dian)流(liu)通(tong)過熔(rong)(rong)斷(duan)器(qi)時(shi)，電(dian)流(liu)產生的熱量會使熔(rong)(rong)斷(duan)器(qi)中(zhong)的熔(rong)(rong)體熔(rong)(rong)斷(duan)，從而(er)保護電(dian)路(lu)不被損壞。

3、低壓斷路器

低壓(ya)斷路器曾被稱為(wei)自(zi)動(dong)開(kai)關(guan)，其工作原理與(yu)熔斷器差不(bu)多，但(dan)功能要多一點(dian)，它(ta)是一種既有手動(dong)開(kai)關(guan)作用，又能自(zi)動(dong)進行失(shi)壓(ya)、欠壓(ya)、過載、和短路保護(hu)的電(dian)器。

4、接觸器

接觸(chu)器主要利用(yong)了(le)電(dian)磁感應原(yuan)理，當(dang)接觸(chu)器線(xian)(xian)圈通(tong)電(dian)后，線(xian)(xian)圈電(dian)流會產(chan)生磁場，產(chan)生的(de)磁場使(shi)靜鐵芯(xin)產(chan)生電(dian)磁吸(xi)力吸(xi)引動鐵芯(xin)，并帶動交流接觸(chu)器點動作(zuo)(zuo)，常(chang)(chang)閉(bi)(bi)(bi)觸(chu)點斷開，常(chang)(chang)開觸(chu)點閉(bi)(bi)(bi)合。當(dang)線(xian)(xian)圈斷電(dian)時(shi)，電(dian)磁吸(xi)力消(xiao)失，銜鐵在釋(shi)放彈簧的(de)作(zuo)(zuo)用(yong)下釋(shi)放，使(shi)觸(chu)點復原(yuan)，常(chang)(chang)開觸(chu)點斷開，常(chang)(chang)閉(bi)(bi)(bi)觸(chu)點閉(bi)(bi)(bi)合。

5、繼電器

繼(ji)電(dian)器有很多種類(lei)，不同類(lei)型的(de)繼(ji)電(dian)器，工作原(yuan)理(li)略(lve)有不同，但它們的(de)基本(ben)原(yuan)理(li)是(shi)相似(si)的(de)，都利(li)用了電(dian)磁效應來控制機械觸點，來而達到通斷目的(de)。