大(da)連變壓器柜是本公司產品的(de)其(qi)中(zhong)一種，

而大連變頻控制(zhi)箱 它的空(kong)氣(qi)開關(guan) 一個(ge)總的空(kong)氣(qi)開關(guan)，這個(ge)是整個(ge)柜(ju)(ju)體(ti)的電源控制(zhi)。相信每個(ge)柜(ju)(ju)子(zi)都(dou)必須要有的一個(ge)東西。 

大連PLC控制柜 這(zhe)個要根據工(gong)程需(xu)要選擇。打個比方(fang)如果工(gong)程小可以直(zhi)接就(jiu)是一個一體化的PLC但如果工(gong)程比較(jiao)大可能就(jiu)需(xu)要模塊、卡件式的，同時(shi)還可能需(xu)要冗余（也就(jiu)是兩套交替使用）。 

電源(yuan) ，一(yi)個(ge)24VDC的(de)開關電源(yuan)，大(da)多數(shu)的(de)PLC都是(shi)(shi)自帶24VDC的(de)電源(yuan)，根據是(shi)(shi)否確實(shi)需要來定是(shi)(shi)否要這個(ge)開關電源(yuan)。 

繼電(dian)器(qi) 一般PLC是可(ke)以直接將指(zhi)令發(fa)到(dao)控制回路里，但也可(ke)能先由繼電(dian)器(qi)中轉。打個(ge)比(bi)方，如果(guo)你PLC的(de)輸(shu)出口帶電(dian)是24VDC的(de)，但是你的(de)控制回路里畫(hua)的(de)圖需要PLC供(gong)的(de)節點(dian)卻是220VAC的(de)，那么你就(jiu)必須在PLC輸(shu)出口加上(shang)一個(ge)繼電(dian)器(qi)，即指(zhi)令發(fa)出時繼電(dian)器(qi)動作，但后讓(rang)控制回路的(de)節點(dian)接到(dao)繼電(dian)器(qi)的(de)常(chang)(chang)開(kai)或常(chang)(chang)閉點(dian)上(shang)。也是根據情(qing)況(kuang)選擇是否使用(yong)繼電(dian)器(qi)。 

1.空(kong)氣(qi)斷(duan)路(lu)器是一種不僅(jin)能(neng)正(zheng)常接(jie)觸(chu)和斷(duan)開(kai)電(dian)(dian)路(lu)，并能(neng)在(zai)(zai)過(guo)電(dian)(dian)流、逆(ni)電(dian)(dian)流、短路(lu)和失（欠）電(dian)(dian)壓等非正(zheng)常情況下動作(zuo)的(de)自動電(dian)(dian)器。其主要作(zuo)用是保護交、直流電(dian)(dian)路(lu)內的(de)電(dian)(dian)氣(qi)設(she)備，也可以不頻繁地操作(zuo)電(dian)(dian)路(lu)。在(zai)(zai)這里(li)用來迅速切斷(duan)變(bian)頻器，防止變(bian)頻器及其線(xian)路(lu)故(gu)障(zhang)導致電(dian)(dian)源故(gu)障(zhang)。  

2.交流電(dian)(dian)抗器(qi)又叫AC電(dian)(dian)抗器(qi)、電(dian)(dian)源協調用的(de)交流電(dian)(dian)抗器(qi)。其(qi)主要功能是防止電(dian)(dian)源電(dian)(dian)網的(de)諧(xie)波干擾。 

3.交流接(jie)觸(chu)器(qi)(qi)簡(jian)稱(cheng)接(jie)觸(chu)器(qi)(qi)。它是用(yong)來頻(pin)繁(fan)遠距(ju)離接(jie)通和分斷交直流電(dian)(dian)路(lu)，或大電(dian)(dian)容控制電(dian)(dian)路(lu)的自(zi)(zi)動電(dian)(dian)器(qi)(qi)。這里主(zhu)要(yao)用(yong)于變頻(pin)器(qi)(qi)出現(xian)故(gu)障(zhang)時，自(zi)(zi)動切斷主(zhu)電(dian)(dian)源并防止掉電(dian)(dian)及故(gu)障(zhang)后(hou)再起動。 

大連電氣控制柜的(de)(de)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)器(qi)(qi)形狀和(he)尺(chi)寸(cun)取(qu)決于電氣控(kong)(kong)(kong)制(zhi)(zhi)(zhi)柜的(de)(de)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)器(qi)(qi)上手(shou)或(huo)腳使(shi)(shi)用(yong)部(bu)位(wei)(wei)尺(chi)寸(cun)和(he)電氣控(kong)(kong)(kong)制(zhi)(zhi)(zhi)柜的(de)(de)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)器(qi)(qi)操作時用(yong)力(li)方式。手(shou)用(yong)工具(ju)的(de)(de)設計要使(shi)(shi)手(shou)或(huo)腳的(de)(de)用(yong)力(li)部(bu)位(wei)(wei)與電氣控(kong)(kong)(kong)制(zhi)(zhi)(zhi)柜的(de)(de)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)器(qi)(qi)重量(liang)分配相互匹配，同時采(cai)取(qu)一定的(de)(de)防(fang)誤操作措施(shi)，如電氣控(kong)(kong)(kong)制(zhi)(zhi)(zhi)柜的(de)(de)控(kong)(kong)(kong)制(zhi)(zhi)(zhi)器(qi)(qi)表面防(fang)滑、增加腳踏板行程(cheng)等。