大連控制柜、變頻控制箱和大連PLC變頻控制柜出現在市(shi)(shi)場中(zhong)引起銷售熱潮(chao)，其功(gong)(gong)能(neng)全(quan)面(mian)特點是(shi)起到很大(da)作用，不(bu)同(tong)功(gong)(gong)能(neng)迎合到市(shi)(shi)場不(bu)同(tong)用戶群體(ti)，迅速占據到各(ge)大(da)市(shi)(shi)場空間(jian)。以(yi)下就來(lai)為大(da)家全(quan)面(mian)介紹PLC變頻控(kong)制柜功(gong)(gong)能(neng)信(xin)息內容： 

1、電(dian)源(yuan)切換(huan)與保(bao)(bao)護功能，PLC變頻控(kong)制柜(ju)通(tong)常設計有短(duan)路器元件，連接著(zhu)進線電(dian)源(yuan)，可以幫助變頻設備完成電(dian)路通(tong)斷控(kong)制，并能夠在電(dian)路和變頻器出(chu)現短(duan)路或是運行過載時給予(yu)保(bao)(bao)護，解決設備在運行中會發生電(dian)力輸(shu)送安全問題，對操控(kong)人員人身安全起到保(bao)(bao)護。 

2、變(bian)(bian)(bian)頻(pin)調速功能(neng)，PLC變(bian)(bian)(bian)頻(pin)控制(zhi)柜(ju)面板上設有(you)變(bian)(bian)(bian)頻(pin)調速用電位器，可以根據操作人員輸送(song)頻(pin)率，向電機(ji)輸送(song)指令信號，控制(zhi)電機(ji)運行速度(du)，并且在部分產品設有(you)工頻(pin)切換功能(neng)，以確保變(bian)(bian)(bian)頻(pin)器出現(xian)故(gu)障(zhang)(zhang)時(shi)，可以通過裝置實(shi)現(xian)最(zui)低故(gu)障(zhang)(zhang)發生，減(jian)少設備(bei)出現(xian)損壞次(ci)數(shu)。 

國家發改委(wei)啟動(dong)的十大重點節(jie)(jie)能工程之(zhi)一就是(shi)電機(ji)(ji)系統(tong)節(jie)(jie)能，并要求：推(tui)廣變頻(pin)(pin)調速(su)(su)節(jie)(jie)能技(ji)術，風機(ji)(ji)、水泵、壓縮(suo)機(ji)(ji)等(deng)通用(yong)機(ji)(ji)械系統(tong)采用(yong)變頻(pin)(pin)調速(su)(su)節(jie)(jie)能措(cuo)施，工業機(ji)(ji)械采用(yong)交流電動(dong)機(ji)(ji)變頻(pin)(pin)調速(su)(su)技(ji)術；制定相關經濟激勵(li)政策、完善電機(ji)(ji)能效(xiao)標準體系等(deng)配(pei)套措(cuo)施；“十一五(wu)”期間，實現電機(ji)(ji)系統(tong)運行效(xiao)率(lv)提高2個百分點，形成年(nian)節(jie)(jie)電能力200億千瓦時(shi)。 

為(wei)推(tui)動全社會(hui)展開節能(neng)降耗，緩解能(neng)源(yuan)瓶頸的(de)(de)制(zhi)約(yue)，建(jian)設節能(neng)型(xing)社會(hui)，國(guo)家發(fa)改委制(zhi)定了《節能(neng)中長期專項規劃》，并在2004年11月25日(ri)向全社會(hui)發(fa)布。該“規劃”明確指(zhi)出：能(neng)源(yuan)是(shi)戰略資源(yuan)，是(shi)全面(mian)建(jian)設小康社會(hui)的(de)(de)重要物質基礎，必須堅持節約(yue)優先(xian)。 

隨(sui)(sui)著電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)子(zi)技術(shu)(shu)和(he)(he)開(kai)(kai)(kai)關(guan)行業的飛速發展，電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)子(zi)設備與人們的工作、生活(huo)的關(guan)系日益密切，而電(dian)(dian)(dian)子(zi)設備都(dou)離不開(kai)(kai)(kai)可(ke)靠的電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，進入80年代計算機(ji)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)全面實現(xian)了(le)開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)化，率(lv)先完成計算機(ji)的電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)換(huan)代，進入90年代開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)相(xiang)繼進入各種電(dian)(dian)(dian)子(zi)、電(dian)(dian)(dian)器設備領域，程控交換(huan)機(ji)、通(tong)訊、電(dian)(dian)(dian)子(zi)檢測設備電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)、控制(zhi)設備電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)等都(dou)已廣泛地使用了(le)開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，更促(cu)進了(le)開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)技術(shu)(shu)的迅速發展。開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)是(shi)利用現(xian)代電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)子(zi)技術(shu)(shu)，控制(zhi)開(kai)(kai)(kai)關(guan)晶體管開(kai)(kai)(kai)通(tong)和(he)(he)關(guan)斷的時(shi)間比(bi)(bi)率(lv)，維持穩定(ding)輸出電(dian)(dian)(dian)壓的一種電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)一般由脈沖寬度(du)調制(zhi)（PWM）控制(zhi)IC和(he)(he)MOSFET構成。開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)和(he)(he)線性電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)相(xiang)比(bi)(bi)，二(er)者的成本(ben)都(dou)隨(sui)(sui)著輸出功率(lv)的增(zeng)加而增(zeng)長，但二(er)者增(zeng)長速率(lv)各異(yi)。