低壓電器有哪些分類方法

1、按(an)用途和(he)控(kong)制(zhi)(zhi)對象不(bu)同，可將低(di)壓(ya)(ya)電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)分(fen)為配電(dian)(dian)電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)和(he)控(kong)制(zhi)(zhi)電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)。用于電(dian)(dian)能(neng)的(de)輸送和(he)分(fen)配的(de)電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)稱(cheng)為低(di)壓(ya)(ya)配電(dian)(dian)電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)，這類電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)包括刀開關(guan)(guan)、轉換開關(guan)(guan)、空氣斷路器(qi)(qi)(qi)(qi)(qi)和(he)熔斷器(qi)(qi)(qi)(qi)(qi)等。用于各(ge)(ge)種控(kong)制(zhi)(zhi)電(dian)(dian)路和(he)控(kong)制(zhi)(zhi)系(xi)統的(de)電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)稱(cheng)為控(kong)制(zhi)(zhi)電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)，這類電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)包括接(jie)觸器(qi)(qi)(qi)(qi)(qi)、起動器(qi)(qi)(qi)(qi)(qi)和(he)各(ge)(ge)種控(kong)制(zhi)(zhi)繼電(dian)(dian)器(qi)(qi)(qi)(qi)(qi)等。

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2、按(an)操(cao)作方式不同，可將低壓電(dian)(dian)器(qi)(qi)(qi)分為(wei)自(zi)動(dong)電(dian)(dian)器(qi)(qi)(qi)和手動(dong)電(dian)(dian)器(qi)(qi)(qi)。通過電(dian)(dian)器(qi)(qi)(qi)本身參數變化或外來信(xin)號（如電(dian)(dian)、磁(ci)、光、熱等）自(zi)動(dong)完成接通、分斷、起動(dong)、反向(xiang)和停(ting)止等動(dong)作的(de)(de)電(dian)(dian)器(qi)(qi)(qi)稱為(wei)自(zi)動(dong)電(dian)(dian)器(qi)(qi)(qi)，常(chang)用的(de)(de)自(zi)動(dong)電(dian)(dian)器(qi)(qi)(qi)有(you)接觸器(qi)(qi)(qi)、繼電(dian)(dian)器(qi)(qi)(qi)等。通過人力(li)直(zhi)接操(cao)作來完成接通、分斷、起動(dong)、反向(xiang)和停(ting)止等動(dong)作的(de)(de)電(dian)(dian)器(qi)(qi)(qi)稱為(wei)手動(dong)電(dian)(dian)器(qi)(qi)(qi)。常(chang)用的(de)(de)手動(dong)電(dian)(dian)器(qi)(qi)(qi)有(you)刀開(kai)關、轉換(huan)開(kai)關和主令(ling)電(dian)(dian)器(qi)(qi)(qi)等。

3、按工(gong)作原理(li)，低壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)可分(fen)為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)和非電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)是依據電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁感應原理(li)來工(gong)作的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，如接觸器(qi)(qi)(qi)(qi)、各類(lei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁式(shi)繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)等(deng)。非電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)的(de)(de)工(gong)作是靠外力或某種非電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)的(de)(de)變化而動作的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，如行程開關、速度繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)等(deng)。

常見低壓電器是怎么工作的

1、刀開關

刀開(kai)關(guan)又稱為閘刀開(kai)關(guan)或隔離開(kai)關(guan)，它是(shi)通(tong)過底座上的(de)靜觸(chu)頭與(yu)刀夾座相(xiang)楔合(he)（或分離），來控制電(dian)路(lu)接通(tong)（或分斷）的(de)低壓(ya)電(dian)器設備(bei)。

2、熔斷器

熔(rong)(rong)斷(duan)(duan)器也被(bei)稱為保險絲，IEC127標(biao)準將它定義(yi)為“熔(rong)(rong)斷(duan)(duan)體(ti)（fuse-link）”。熔(rong)(rong)斷(duan)(duan)器的工作原理很簡單，當過載或短路(lu)電(dian)(dian)流(liu)通過熔(rong)(rong)斷(duan)(duan)器時(shi)，電(dian)(dian)流(liu)產生的熱量會使熔(rong)(rong)斷(duan)(duan)器中的熔(rong)(rong)體(ti)熔(rong)(rong)斷(duan)(duan)，從而保護電(dian)(dian)路(lu)不(bu)被(bei)損(sun)壞。

3、低壓斷路器

低壓(ya)(ya)斷路器(qi)曾(ceng)被稱為自動開(kai)(kai)關，其(qi)工(gong)作(zuo)原理與熔(rong)斷器(qi)差不多，但功能(neng)要多一(yi)(yi)點，它是一(yi)(yi)種既有手動開(kai)(kai)關作(zuo)用(yong)，又能(neng)自動進行失壓(ya)(ya)、欠壓(ya)(ya)、過載(zai)、和短路保護的電器(qi)。

4、接觸器

接(jie)觸器主(zhu)要利用(yong)(yong)了電磁(ci)感應原(yuan)理，當接(jie)觸器線(xian)圈通電后(hou)，線(xian)圈電流會產生(sheng)磁(ci)場，產生(sheng)的磁(ci)場使靜鐵芯(xin)(xin)產生(sheng)電磁(ci)吸力(li)吸引動鐵芯(xin)(xin)，并帶動交流接(jie)觸器點(dian)(dian)動作，常(chang)閉(bi)觸點(dian)(dian)斷(duan)開，常(chang)開觸點(dian)(dian)閉(bi)合。當線(xian)圈斷(duan)電時，電磁(ci)吸力(li)消失，銜鐵在釋(shi)放彈簧的作用(yong)(yong)下釋(shi)放，使觸點(dian)(dian)復原(yuan)，常(chang)開觸點(dian)(dian)斷(duan)開，常(chang)閉(bi)觸點(dian)(dian)閉(bi)合。

5、繼電器

繼(ji)電器有很多種(zhong)類(lei)，不同類(lei)型的(de)繼(ji)電器，工作原理略有不同，但它們的(de)基(ji)本原理是相(xiang)似(si)的(de)，都利用了電磁效應(ying)來(lai)控制機械(xie)觸(chu)點(dian)，來(lai)而達到(dao)通斷(duan)目的(de)。