大連控制柜、變頻控制箱和大連PLC變頻控制柜出現在市場(chang)中(zhong)引(yin)起銷(xiao)售熱潮，其功(gong)(gong)能(neng)全面特點是(shi)起到很大(da)作用，不同(tong)功(gong)(gong)能(neng)迎合到市場(chang)不同(tong)用戶群體，迅速占(zhan)據到各大(da)市場(chang)空間。以下就來為(wei)大(da)家全面介紹PLC變頻控制柜功(gong)(gong)能(neng)信息內容： 

1、電源(yuan)切換與保護(hu)功能，PLC變(bian)頻控(kong)制柜通常(chang)設(she)計有短路器(qi)元件，連(lian)接(jie)著進線電源(yuan)，可(ke)以(yi)幫助變(bian)頻設(she)備(bei)完成電路通斷控(kong)制，并能夠在電路和變(bian)頻器(qi)出現(xian)短路或是運行過載時(shi)給(gei)予保護(hu)，解(jie)決(jue)設(she)備(bei)在運行中會(hui)發生電力輸(shu)送安全(quan)問題，對操控(kong)人(ren)員人(ren)身安全(quan)起到保護(hu)。 

2、變(bian)(bian)頻調(diao)速功能，PLC變(bian)(bian)頻控(kong)制柜(ju)面(mian)板上設有變(bian)(bian)頻調(diao)速用電位器，可(ke)(ke)以根據操(cao)作人員輸送頻率(lv)，向電機輸送指(zhi)令信(xin)號，控(kong)制電機運行速度(du)，并且在部分產品設有工頻切換功能，以確(que)保變(bian)(bian)頻器出(chu)現故障時，可(ke)(ke)以通過(guo)裝置實現最低故障發生，減少設備出(chu)現損壞次數。 

國家發改委啟動(dong)的十大(da)重點節(jie)(jie)能(neng)工程(cheng)之(zhi)一就是電(dian)(dian)(dian)機(ji)(ji)(ji)系(xi)統節(jie)(jie)能(neng)，并要求(qiu)：推(tui)廣變(bian)頻調速(su)節(jie)(jie)能(neng)技術，風機(ji)(ji)(ji)、水泵(beng)、壓縮機(ji)(ji)(ji)等(deng)通(tong)用機(ji)(ji)(ji)械系(xi)統采用變(bian)頻調速(su)節(jie)(jie)能(neng)措施，工業(ye)機(ji)(ji)(ji)械采用交流電(dian)(dian)(dian)動(dong)機(ji)(ji)(ji)變(bian)頻調速(su)技術；制定相關經濟(ji)激勵政(zheng)策、完(wan)善電(dian)(dian)(dian)機(ji)(ji)(ji)能(neng)效(xiao)(xiao)標準體(ti)系(xi)等(deng)配套措施；“十一五”期間(jian)，實現電(dian)(dian)(dian)機(ji)(ji)(ji)系(xi)統運行效(xiao)(xiao)率提高2個(ge)百分點，形成年(nian)節(jie)(jie)電(dian)(dian)(dian)能(neng)力200億千(qian)瓦時。 

為推動全社會(hui)展開節能(neng)(neng)降耗，緩解(jie)能(neng)(neng)源(yuan)瓶頸的制(zhi)約，建(jian)設節能(neng)(neng)型社會(hui)，國家發改委制(zhi)定了《節能(neng)(neng)中長(chang)期專項規(gui)劃(hua)》，并在2004年11月25日向(xiang)全社會(hui)發布(bu)。該“規(gui)劃(hua)”明確指出：能(neng)(neng)源(yuan)是戰略資源(yuan)，是全面建(jian)設小康社會(hui)的重要(yao)物質基礎，必須堅持節約優先。 

隨著電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)子(zi)技術和(he)開(kai)關(guan)(guan)行業的(de)(de)飛(fei)速(su)發展，電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)子(zi)設備(bei)與(yu)人(ren)們的(de)(de)工(gong)作(zuo)、生活的(de)(de)關(guan)(guan)系日益密切，而(er)電(dian)(dian)(dian)(dian)(dian)子(zi)設備(bei)都離不開(kai)可靠的(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，進入80年代計算機(ji)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)全面(mian)實現了開(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)化(hua)，率先完成計算機(ji)的(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)換代，進入90年代開(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)相繼進入各種電(dian)(dian)(dian)(dian)(dian)子(zi)、電(dian)(dian)(dian)(dian)(dian)器設備(bei)領域，程控(kong)交(jiao)換機(ji)、通訊、電(dian)(dian)(dian)(dian)(dian)子(zi)檢測設備(bei)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)、控(kong)制(zhi)(zhi)設備(bei)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)等都已廣泛(fan)地(di)使(shi)用了開(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，更促進了開(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)技術的(de)(de)迅速(su)發展。開(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)是利用現代電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)子(zi)技術，控(kong)制(zhi)(zhi)開(kai)關(guan)(guan)晶體(ti)管(guan)開(kai)通和(he)關(guan)(guan)斷的(de)(de)時間比率，維持穩定輸出電(dian)(dian)(dian)(dian)(dian)壓的(de)(de)一種電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，開(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)一般由脈沖(chong)寬度調制(zhi)(zhi)（PWM）控(kong)制(zhi)(zhi)IC和(he)MOSFET構成。開(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)和(he)線性電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)相比，二(er)者(zhe)的(de)(de)成本都隨著輸出功率的(de)(de)增加而(er)增長，但二(er)者(zhe)增長速(su)率各異。