大連(lian)變壓器柜是本公司產品的其(qi)中一種，

而大連變頻控(kong)制箱(xiang) 它的(de)空氣開(kai)關(guan) 一個總的(de)空氣開(kai)關(guan)，這個是(shi)整個柜(ju)體的(de)電源控(kong)制。相信(xin)每個柜(ju)子都必須要有的(de)一個東西。 

大連PLC控制柜 這(zhe)個(ge)要根據工(gong)程需(xu)要選擇。打個(ge)比方如(ru)(ru)果工(gong)程小可以直接(jie)就是一個(ge)一體(ti)化的PLC但如(ru)(ru)果工(gong)程比較大可能就需(xu)要模(mo)塊、卡件(jian)式的，同時(shi)還可能需(xu)要冗余（也(ye)就是兩套交替使用）。 

電源(yuan) ，一個(ge)24VDC的開關(guan)電源(yuan)，大多數的PLC都(dou)是自帶24VDC的電源(yuan)，根據是否確實需要來定是否要這(zhe)個(ge)開關(guan)電源(yuan)。 

繼(ji)電器 一般PLC是(shi)(shi)可以直接將指令(ling)發到控(kong)制(zhi)回(hui)(hui)路里，但也可能先由繼(ji)電器中(zhong)轉。打個(ge)比(bi)方，如果你PLC的(de)(de)輸(shu)(shu)出(chu)口帶電是(shi)(shi)24VDC的(de)(de)，但是(shi)(shi)你的(de)(de)控(kong)制(zhi)回(hui)(hui)路里畫的(de)(de)圖(tu)需要PLC供的(de)(de)節點(dian)卻是(shi)(shi)220VAC的(de)(de)，那么你就必(bi)須(xu)在PLC輸(shu)(shu)出(chu)口加上一個(ge)繼(ji)電器，即指令(ling)發出(chu)時繼(ji)電器動作，但后讓(rang)控(kong)制(zhi)回(hui)(hui)路的(de)(de)節點(dian)接到繼(ji)電器的(de)(de)常開或常閉點(dian)上。也是(shi)(shi)根據情況選(xuan)擇是(shi)(shi)否(fou)使用繼(ji)電器。 

1.空氣斷路(lu)(lu)(lu)器(qi)(qi)是一種不僅能正常(chang)接(jie)觸和斷開電(dian)(dian)(dian)路(lu)(lu)(lu)，并能在(zai)過電(dian)(dian)(dian)流、逆(ni)電(dian)(dian)(dian)流、短路(lu)(lu)(lu)和失（欠(qian)）電(dian)(dian)(dian)壓等(deng)非(fei)正常(chang)情(qing)況下動(dong)作(zuo)的自動(dong)電(dian)(dian)(dian)器(qi)(qi)。其(qi)主要(yao)作(zuo)用是保護交、直流電(dian)(dian)(dian)路(lu)(lu)(lu)內的電(dian)(dian)(dian)氣設備，也(ye)可(ke)以不頻(pin)繁地操(cao)作(zuo)電(dian)(dian)(dian)路(lu)(lu)(lu)。在(zai)這(zhe)里用來迅速切斷變頻(pin)器(qi)(qi)，防止變頻(pin)器(qi)(qi)及(ji)其(qi)線路(lu)(lu)(lu)故障導致電(dian)(dian)(dian)源故障。  

2.交流(liu)電(dian)抗器又叫AC電(dian)抗器、電(dian)源(yuan)協調用的交流(liu)電(dian)抗器。其(qi)主要功能是防止電(dian)源(yuan)電(dian)網的諧波干擾。 

3.交(jiao)流接觸器(qi)(qi)簡稱(cheng)接觸器(qi)(qi)。它是(shi)用來頻(pin)繁遠距(ju)離(li)接通和分(fen)斷(duan)交(jiao)直流電路，或大(da)電容控制電路的自(zi)動(dong)電器(qi)(qi)。這(zhe)里主要用于變頻(pin)器(qi)(qi)出現(xian)故障時，自(zi)動(dong)切斷(duan)主電源并防止掉電及故障后再起動(dong)。 

大連電氣控制柜的控(kong)(kong)(kong)制(zhi)(zhi)器(qi)(qi)形狀和(he)尺寸取決于電(dian)氣(qi)(qi)(qi)控(kong)(kong)(kong)制(zhi)(zhi)柜的控(kong)(kong)(kong)制(zhi)(zhi)器(qi)(qi)上手(shou)或腳使(shi)用(yong)(yong)部位尺寸和(he)電(dian)氣(qi)(qi)(qi)控(kong)(kong)(kong)制(zhi)(zhi)柜的控(kong)(kong)(kong)制(zhi)(zhi)器(qi)(qi)操作(zuo)時用(yong)(yong)力方式。手(shou)用(yong)(yong)工具的設計要使(shi)手(shou)或腳的用(yong)(yong)力部位與(yu)電(dian)氣(qi)(qi)(qi)控(kong)(kong)(kong)制(zhi)(zhi)柜的控(kong)(kong)(kong)制(zhi)(zhi)器(qi)(qi)重量分(fen)配相互匹配，同時采取一(yi)定的防(fang)誤操作(zuo)措施，如電(dian)氣(qi)(qi)(qi)控(kong)(kong)(kong)制(zhi)(zhi)柜的控(kong)(kong)(kong)制(zhi)(zhi)器(qi)(qi)表面防(fang)滑、增加(jia)腳踏板(ban)行(xing)程(cheng)等。