大連變壓器(qi)柜是(shi)本公司產品的其中一(yi)種，

而(er)大連變頻控制箱(xiang) 它的(de)空(kong)氣開關 一個總的(de)空(kong)氣開關，這(zhe)個是整個柜體的(de)電源控制。相信(xin)每個柜子(zi)都必須要有(you)的(de)一個東西(xi)。 

大連PLC控制柜 這個要(yao)根據(ju)工程需要(yao)選(xuan)擇(ze)。打個比(bi)方(fang)如果(guo)工程小可以直(zhi)接就(jiu)(jiu)是(shi)一個一體化的(de)PLC但(dan)如果(guo)工程比(bi)較大(da)可能就(jiu)(jiu)需要(yao)模塊、卡件式的(de)，同時還(huan)可能需要(yao)冗余（也就(jiu)(jiu)是(shi)兩套交替使(shi)用）。 

電(dian)源(yuan)(yuan) ，一個(ge)24VDC的開關(guan)電(dian)源(yuan)(yuan)，大多數的PLC都是(shi)自帶24VDC的電(dian)源(yuan)(yuan)，根(gen)據是(shi)否(fou)確實(shi)需要來定是(shi)否(fou)要這個(ge)開關(guan)電(dian)源(yuan)(yuan)。 

繼(ji)電(dian)(dian)(dian)器(qi)(qi) 一般PLC是(shi)可(ke)以直接將指(zhi)令(ling)發(fa)到控(kong)制回(hui)路(lu)里(li)，但也可(ke)能先由(you)繼(ji)電(dian)(dian)(dian)器(qi)(qi)中轉。打個(ge)比方，如(ru)果(guo)你PLC的(de)(de)(de)輸出(chu)(chu)口(kou)帶電(dian)(dian)(dian)是(shi)24VDC的(de)(de)(de)，但是(shi)你的(de)(de)(de)控(kong)制回(hui)路(lu)里(li)畫的(de)(de)(de)圖(tu)需(xu)要(yao)PLC供的(de)(de)(de)節點卻是(shi)220VAC的(de)(de)(de)，那(nei)么你就必須在(zai)PLC輸出(chu)(chu)口(kou)加(jia)上一個(ge)繼(ji)電(dian)(dian)(dian)器(qi)(qi)，即(ji)指(zhi)令(ling)發(fa)出(chu)(chu)時繼(ji)電(dian)(dian)(dian)器(qi)(qi)動作，但后讓控(kong)制回(hui)路(lu)的(de)(de)(de)節點接到繼(ji)電(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)常(chang)(chang)開或(huo)常(chang)(chang)閉點上。也是(shi)根據情況選擇是(shi)否使用繼(ji)電(dian)(dian)(dian)器(qi)(qi)。 

1.空(kong)氣斷(duan)路(lu)器是(shi)一(yi)種不僅能正(zheng)常(chang)接(jie)觸和斷(duan)開電(dian)(dian)(dian)路(lu)，并能在過(guo)電(dian)(dian)(dian)流(liu)、逆電(dian)(dian)(dian)流(liu)、短路(lu)和失（欠）電(dian)(dian)(dian)壓等非正(zheng)常(chang)情(qing)況下(xia)動作的自動電(dian)(dian)(dian)器。其主(zhu)要作用是(shi)保護(hu)交、直流(liu)電(dian)(dian)(dian)路(lu)內的電(dian)(dian)(dian)氣設備(bei)，也可以不頻繁地操(cao)作電(dian)(dian)(dian)路(lu)。在這里用來迅速切(qie)斷(duan)變頻器，防止變頻器及其線(xian)路(lu)故(gu)障(zhang)(zhang)導致(zhi)電(dian)(dian)(dian)源(yuan)故(gu)障(zhang)(zhang)。  

2.交流電(dian)抗器(qi)又叫AC電(dian)抗器(qi)、電(dian)源協調(diao)用(yong)的交流電(dian)抗器(qi)。其主要功能是(shi)防止電(dian)源電(dian)網的諧波干擾。 

3.交流接觸器簡(jian)稱接觸器。它是用來頻繁遠距離(li)接通和分斷(duan)交直流電(dian)(dian)路(lu)，或(huo)大(da)電(dian)(dian)容控(kong)制電(dian)(dian)路(lu)的自動電(dian)(dian)器。這里(li)主(zhu)要用于變頻器出現故(gu)(gu)障(zhang)時，自動切斷(duan)主(zhu)電(dian)(dian)源(yuan)并防止掉(diao)電(dian)(dian)及故(gu)(gu)障(zhang)后再起動。 

大連電氣控制柜的(de)(de)控(kong)(kong)制(zhi)器(qi)形(xing)狀和尺寸取決于(yu)電(dian)氣(qi)(qi)控(kong)(kong)制(zhi)柜(ju)(ju)的(de)(de)控(kong)(kong)制(zhi)器(qi)上手(shou)或(huo)腳使(shi)(shi)用部(bu)位尺寸和電(dian)氣(qi)(qi)控(kong)(kong)制(zhi)柜(ju)(ju)的(de)(de)控(kong)(kong)制(zhi)器(qi)操作時用力方式。手(shou)用工(gong)具的(de)(de)設計(ji)要使(shi)(shi)手(shou)或(huo)腳的(de)(de)用力部(bu)位與電(dian)氣(qi)(qi)控(kong)(kong)制(zhi)柜(ju)(ju)的(de)(de)控(kong)(kong)制(zhi)器(qi)重量分配相互匹配，同(tong)時采取一(yi)定的(de)(de)防(fang)誤(wu)操作措施，如電(dian)氣(qi)(qi)控(kong)(kong)制(zhi)柜(ju)(ju)的(de)(de)控(kong)(kong)制(zhi)器(qi)表面防(fang)滑(hua)、增加腳踏板行程(cheng)等。