先按用(yong)途來分:低(di)壓電(dian)(dian)(dian)器(qi)(qi)(qi)按它(ta)在電(dian)(dian)(dian)路中所(suo)(suo)處的(de)地位和(he)作用(yong)可以分為低(di)壓控制電(dian)(dian)(dian)器(qi)(qi)(qi)和(he)低(di)壓配電(dian)(dian)(dian)電(dian)(dian)(dian)器(qi)(qi)(qi)兩大類,低(di)壓控制電(dian)(dian)(dian)器(qi)(qi)(qi)是指電(dian)(dian)(dian)動機完成生(sheng)產(chan)時要(yao)求(qiu)的(de)啟(qi)動,調速,反轉和(he)停止所(suo)(suo)用(yong)的(de)電(dian)(dian)(dian)器(qi)(qi)(qi)(變(bian)頻(pin)器(qi)(qi)(qi)、電(dian)(dian)(dian)位器(qi)(qi)(qi)等),低(di)壓配電(dian)(dian)(dian)電(dian)(dian)(dian)器(qi)(qi)(qi)是指正常或事故狀態(tai)下接(jie)通或斷開與(yu)用(yong)電(dian)(dian)(dian)設備和(he)供電(dian)(dian)(dian)電(dian)(dian)(dian)網所(suo)(suo)用(yong)的(de)電(dian)(dian)(dian)器(qi)(qi)(qi)(空氣開關、接(jie)觸器(qi)(qi)(qi))。
按動(dong)作方式分(fen):低壓電(dian)器按他的(de)動(dong)作方式可以分(fen)為(wei)自(zi)(zi)動(dong)切換(huan)電(dian)器和非自(zi)(zi)動(dong)切換(huan)電(dian)器,前者(zhe)是依靠本身參數的(de)變化或外(wai)來信號(hao)的(de)作用自(zi)(zi)動(dong)完成接(jie)通(溫控器,PLC)或分(fen)段等動(dong)作,而后(hou)者(zhe)只要用手(shou)直接(jie)操作進(jin)行工作的(de)(按鈕,開關)。
低(di)壓電器的主要(yao)技術參數有以下幾(ji)種:
一種是額定(ding)電(dian)流,額定(ding)電(dian)流是在(zai)規(gui)定(ding)條件(jian)下..開關(guan)電(dian)器正常(chang)工作的(de)(de)電(dian)流值(zhi),除此之外,還有在(zai)規(gui)定(ding)狀(zhuang)(zhuang)態(tai)下,電(dian)氣處于非封(feng)閉狀(zhuang)(zhuang)態(tai)下,開關(guan)電(dian)器8小時的(de)(de)工作制(zhi)下,各部件(jian)溫升不超過(guo)某(mou)極限(xian)值(zhi),或在(zai)承(cheng)載的(de)(de)較(jiao)大(da)電(dian)流,產生的(de)(de)溫升較(jiao)大(da)值(zhi)的(de)(de)時候(hou)就(jiu)應該斷(duan)掉的(de)(de)參數。
其二是額定電(dian)壓,額定電(dian)壓在規定條件下..電(dian)器(qi)正(zheng)常運(yun)作(zuo)的工作(zuo)電(dian)壓,主要用(yong)來度量電(dian)器(qi)和(he)其它(ta)部件的絕(jue)緣(yuan)性能,電(dian)路的空間(jian)距離(li),還有一些脈沖耐受電(dian)壓。
第三個(ge)是操(cao)(cao)作(zuo)頻(pin)率(lv)和(he)通(tong)(tong)(tong)電持續(xu)性,這個(ge)比較簡單,就(jiu)是頻(pin)繁的去控制(zhi)電路的通(tong)(tong)(tong)斷,這個(ge)就(jiu)叫作(zuo)操(cao)(cao)作(zuo)頻(pin)率(lv),還(huan)有通(tong)(tong)(tong)電的時長,就(jiu)是一直是通(tong)(tong)(tong)電狀態下工作(zuo),還(huan)是說(shuo)瞬(shun)時通(tong)(tong)(tong)的,這是原理上是差不太多(duo)的。
第四個是機械(xie)壽(shou)(shou)命(ming)(ming)與(yu)電(dian)器(qi)(qi)壽(shou)(shou)命(ming)(ming),舉例來說,電(dian)器(qi)(qi)元件(jian)里面那個觸(chu)點,一(yi)般都是機械(xie)性(xing)的(de)(de)(de)零件(jian),在機電(dian)切換轉化過(guo)程中,都會(hui)(hui)產生接(jie)觸(chu)與(yu)斷開,里面的(de)(de)(de)觸(chu)頭(tou)和彈簧等都會(hui)(hui)在多次運行(xing)中,受力,時(shi)間久了(le)就(jiu)開始磨損(sun),機械(xie)磨損(sun)可是沒辦法修復的(de)(de)(de),這個就(jiu)叫做(zuo)機械(xie)壽(shou)(shou)命(ming)(ming);對于電(dian)氣(qi)壽(shou)(shou)命(ming)(ming)來說也(ye)是有(you)電(dian)氣(qi)壽(shou)(shou)命(ming)(ming)的(de)(de)(de),因為(wei)觸(chu)頭(tou)在接(jie)觸(chu)時(shi)接(jie)點的(de)(de)(de)位置會(hui)(hui)出現瞬時(shi)電(dian)流,會(hui)(hui)對觸(chu)頭(tou)產生電(dian)脈(mo)沖,甚至(zhi)是燒(shao)掉觸(chu)頭(tou),這些(xie)零件(jian)因為(wei)通電(dian)的(de)(de)(de)電(dian)阻造成發熱,就(jiu)會(hui)(hui)使線路(lu)老化,這樣元件(jian)就(jiu)有(you)了(le)電(dian)器(qi)(qi)壽(shou)(shou)命(ming)(ming)。
以上就是小編給大家介紹的常用的控制電器元件分類的相關介紹,希望對大家有所幫助,如果有其它問題請來電咨詢許(xu)昌許(xu)繼低壓電(dian)器有(you)限公司(si)!