大連變壓(ya)器(qi)柜(ju)是(shi)本公司產品(pin)的其中一種，

而大連(lian)變頻(pin)控制箱 它的(de)(de)空氣開(kai)關(guan) 一(yi)個總的(de)(de)空氣開(kai)關(guan)，這個是整個柜體(ti)的(de)(de)電源控制。相信每個柜子都必須要(yao)有(you)的(de)(de)一(yi)個東西。 

大連PLC控制柜 這個要根據工程(cheng)(cheng)需(xu)要選擇。打個比(bi)方如果工程(cheng)(cheng)小可以直接就是一個一體(ti)化的(de)PLC但(dan)如果工程(cheng)(cheng)比(bi)較大可能(neng)就需(xu)要模(mo)塊、卡件式的(de)，同(tong)時還可能(neng)需(xu)要冗余（也(ye)就是兩套交替使用）。 

電(dian)源(yuan)(yuan) ，一個24VDC的(de)開關電(dian)源(yuan)(yuan)，大多數的(de)PLC都是(shi)自帶24VDC的(de)電(dian)源(yuan)(yuan)，根據是(shi)否確實需要來定是(shi)否要這個開關電(dian)源(yuan)(yuan)。 

繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi) 一(yi)般PLC是(shi)(shi)(shi)(shi)(shi)可以直接(jie)將(jiang)指令發到(dao)控(kong)(kong)制回路(lu)里(li)，但也可能先由繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)中(zhong)轉。打個比(bi)方，如(ru)果你PLC的(de)(de)輸(shu)出(chu)口帶(dai)電(dian)(dian)(dian)是(shi)(shi)(shi)(shi)(shi)24VDC的(de)(de)，但是(shi)(shi)(shi)(shi)(shi)你的(de)(de)控(kong)(kong)制回路(lu)里(li)畫(hua)的(de)(de)圖需要PLC供的(de)(de)節點(dian)卻(que)是(shi)(shi)(shi)(shi)(shi)220VAC的(de)(de)，那么(me)你就必須在PLC輸(shu)出(chu)口加上(shang)一(yi)個繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)，即指令發出(chu)時繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)動作(zuo)，但后(hou)讓控(kong)(kong)制回路(lu)的(de)(de)節點(dian)接(jie)到(dao)繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)的(de)(de)常(chang)開或常(chang)閉(bi)點(dian)上(shang)。也是(shi)(shi)(shi)(shi)(shi)根據情況選擇(ze)是(shi)(shi)(shi)(shi)(shi)否(fou)使用繼(ji)(ji)電(dian)(dian)(dian)器(qi)(qi)。 

1.空(kong)氣斷(duan)路(lu)(lu)器(qi)(qi)(qi)是一(yi)種不(bu)僅能正(zheng)常(chang)接觸(chu)和斷(duan)開電(dian)(dian)路(lu)(lu)，并(bing)能在過電(dian)(dian)流(liu)、逆(ni)電(dian)(dian)流(liu)、短路(lu)(lu)和失（欠）電(dian)(dian)壓(ya)等(deng)非正(zheng)常(chang)情況(kuang)下動(dong)作(zuo)(zuo)的自動(dong)電(dian)(dian)器(qi)(qi)(qi)。其主要作(zuo)(zuo)用(yong)(yong)是保(bao)護交、直流(liu)電(dian)(dian)路(lu)(lu)內的電(dian)(dian)氣設備(bei)，也可以(yi)不(bu)頻(pin)繁(fan)地操作(zuo)(zuo)電(dian)(dian)路(lu)(lu)。在這里用(yong)(yong)來迅(xun)速切斷(duan)變頻(pin)器(qi)(qi)(qi)，防止變頻(pin)器(qi)(qi)(qi)及其線路(lu)(lu)故(gu)障導致電(dian)(dian)源故(gu)障。  

2.交流電(dian)(dian)(dian)(dian)(dian)抗(kang)(kang)器(qi)又叫AC電(dian)(dian)(dian)(dian)(dian)抗(kang)(kang)器(qi)、電(dian)(dian)(dian)(dian)(dian)源協調用的交流電(dian)(dian)(dian)(dian)(dian)抗(kang)(kang)器(qi)。其主要(yao)功(gong)能是(shi)防止(zhi)電(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)網(wang)的諧波干(gan)擾。 

3.交流(liu)接觸器簡稱(cheng)接觸器。它(ta)是用來頻繁遠距離接通和分(fen)斷交直流(liu)電(dian)路，或(huo)大電(dian)容控制電(dian)路的(de)自(zi)動電(dian)器。這里主要(yao)用于變(bian)頻器出現(xian)故(gu)障時，自(zi)動切斷主電(dian)源并防止掉電(dian)及故(gu)障后再(zai)起動。 

大連電氣控制柜的控(kong)制器形(xing)狀和尺寸(cun)取決(jue)于電(dian)氣(qi)(qi)控(kong)制柜(ju)的控(kong)制器上手(shou)或腳使用部位(wei)尺寸(cun)和電(dian)氣(qi)(qi)控(kong)制柜(ju)的控(kong)制器操作時用力(li)方式。手(shou)用工(gong)具的設計要使手(shou)或腳的用力(li)部位(wei)與電(dian)氣(qi)(qi)控(kong)制柜(ju)的控(kong)制器重量分配相互匹配，同(tong)時采取一定的防誤操作措施，如電(dian)氣(qi)(qi)控(kong)制柜(ju)的控(kong)制器表(biao)面防滑、增加腳踏板(ban)行程等。