大連變壓器柜(ju)是本(ben)公司產品的其中一(yi)種，

而大連變頻(pin)控制箱 它的(de)空氣(qi)開(kai)關(guan) 一(yi)個(ge)總(zong)的(de)空氣(qi)開(kai)關(guan)，這個(ge)是整(zheng)個(ge)柜體(ti)的(de)電源(yuan)控制。相信(xin)每個(ge)柜子都必(bi)須要有的(de)一(yi)個(ge)東西。 

大連PLC控制柜 這個要根據工(gong)程(cheng)需要選擇。打(da)個比方如果工(gong)程(cheng)小可(ke)以直接就是一個一體化的PLC但(dan)如果工(gong)程(cheng)比較大(da)可(ke)能就需要模塊、卡件(jian)式的，同時還可(ke)能需要冗余(yu)（也(ye)就是兩套交替(ti)使用）。 

電(dian)源 ，一個24VDC的開關電(dian)源，大多數的PLC都是自(zi)帶24VDC的電(dian)源，根據是否確實(shi)需(xu)要來定(ding)是否要這個開關電(dian)源。 

繼電(dian)(dian)(dian)器(qi)(qi)(qi) 一般PLC是(shi)可以(yi)直接(jie)將指(zhi)令發到控(kong)(kong)制(zhi)回路(lu)里(li)，但也可能先由(you)繼電(dian)(dian)(dian)器(qi)(qi)(qi)中轉(zhuan)。打個比方(fang)，如(ru)果(guo)你(ni)PLC的(de)輸(shu)出(chu)口(kou)帶電(dian)(dian)(dian)是(shi)24VDC的(de)，但是(shi)你(ni)的(de)控(kong)(kong)制(zhi)回路(lu)里(li)畫(hua)的(de)圖(tu)需要(yao)PLC供(gong)的(de)節點卻(que)是(shi)220VAC的(de)，那么你(ni)就(jiu)必須在(zai)PLC輸(shu)出(chu)口(kou)加上一個繼電(dian)(dian)(dian)器(qi)(qi)(qi)，即指(zhi)令發出(chu)時繼電(dian)(dian)(dian)器(qi)(qi)(qi)動(dong)作，但后讓(rang)控(kong)(kong)制(zhi)回路(lu)的(de)節點接(jie)到繼電(dian)(dian)(dian)器(qi)(qi)(qi)的(de)常(chang)開或(huo)常(chang)閉點上。也是(shi)根(gen)據情(qing)況(kuang)選擇是(shi)否使用繼電(dian)(dian)(dian)器(qi)(qi)(qi)。 

1.空氣斷路器(qi)是一種不僅能(neng)正常(chang)接(jie)觸和斷開(kai)電(dian)(dian)(dian)(dian)路，并能(neng)在(zai)過(guo)電(dian)(dian)(dian)(dian)流(liu)(liu)、逆電(dian)(dian)(dian)(dian)流(liu)(liu)、短路和失（欠）電(dian)(dian)(dian)(dian)壓(ya)等(deng)非正常(chang)情況下動作(zuo)的(de)自動電(dian)(dian)(dian)(dian)器(qi)。其主(zhu)要作(zuo)用(yong)是保護交、直流(liu)(liu)電(dian)(dian)(dian)(dian)路內(nei)的(de)電(dian)(dian)(dian)(dian)氣設備，也(ye)可以不頻(pin)繁(fan)地(di)操作(zuo)電(dian)(dian)(dian)(dian)路。在(zai)這里用(yong)來迅速切斷變頻(pin)器(qi)，防止變頻(pin)器(qi)及其線路故障導致電(dian)(dian)(dian)(dian)源(yuan)故障。  

2.交流電(dian)(dian)(dian)(dian)抗(kang)器(qi)又叫AC電(dian)(dian)(dian)(dian)抗(kang)器(qi)、電(dian)(dian)(dian)(dian)源協調用的(de)交流電(dian)(dian)(dian)(dian)抗(kang)器(qi)。其主要功能(neng)是防止(zhi)電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)網的(de)諧波干擾。 

3.交(jiao)(jiao)流(liu)接觸(chu)器(qi)(qi)簡稱接觸(chu)器(qi)(qi)。它是用來頻繁遠(yuan)距離接通和分斷(duan)(duan)交(jiao)(jiao)直流(liu)電(dian)(dian)路(lu)，或(huo)大電(dian)(dian)容控制電(dian)(dian)路(lu)的自動電(dian)(dian)器(qi)(qi)。這里主要用于(yu)變頻器(qi)(qi)出現故障時，自動切斷(duan)(duan)主電(dian)(dian)源并防止(zhi)掉電(dian)(dian)及故障后再起(qi)動。 

大連電氣控制柜的(de)(de)控(kong)(kong)(kong)制器形狀和(he)尺(chi)寸(cun)取(qu)決于電氣控(kong)(kong)(kong)制柜(ju)的(de)(de)控(kong)(kong)(kong)制器上手(shou)或腳(jiao)使用(yong)部位尺(chi)寸(cun)和(he)電氣控(kong)(kong)(kong)制柜(ju)的(de)(de)控(kong)(kong)(kong)制器操(cao)作時用(yong)力方式(shi)。手(shou)用(yong)工具的(de)(de)設計要使手(shou)或腳(jiao)的(de)(de)用(yong)力部位與電氣控(kong)(kong)(kong)制柜(ju)的(de)(de)控(kong)(kong)(kong)制器重量分配(pei)相互匹配(pei)，同時采取(qu)一定(ding)的(de)(de)防誤操(cao)作措施，如電氣控(kong)(kong)(kong)制柜(ju)的(de)(de)控(kong)(kong)(kong)制器表面防滑、增加腳(jiao)踏板行程等(deng)。