大連控制柜、變頻控制箱和大連PLC變頻控制柜出(chu)現(xian)在市場(chang)中引起銷售(shou)熱潮(chao)，其功能全面(mian)(mian)特(te)點是起到很(hen)大作用，不(bu)同(tong)功能迎合到市場(chang)不(bu)同(tong)用戶群體，迅速(su)占(zhan)據到各大市場(chang)空間。以(yi)下就來為大家全面(mian)(mian)介(jie)紹(shao)PLC變頻(pin)控制(zhi)柜功能信息內容： 

1、電(dian)源(yuan)切換與保護功能(neng)，PLC變(bian)頻(pin)控(kong)制柜通(tong)常設計有(you)短路器元件，連接(jie)著(zhu)進線電(dian)源(yuan)，可以(yi)幫助變(bian)頻(pin)設備完成(cheng)電(dian)路通(tong)斷控(kong)制，并(bing)能(neng)夠(gou)在電(dian)路和變(bian)頻(pin)器出現(xian)短路或(huo)是運行過載時給予保護，解決設備在運行中會發生(sheng)電(dian)力(li)輸送安全問(wen)題，對操控(kong)人員人身安全起到(dao)保護。 

2、變(bian)頻調速(su)功(gong)能(neng)，PLC變(bian)頻控(kong)制柜面(mian)板上設有(you)變(bian)頻調速(su)用電位器(qi)(qi)，可以(yi)根據操作人員輸送(song)頻率，向電機(ji)輸送(song)指令信號，控(kong)制電機(ji)運(yun)行速(su)度，并且在部(bu)分產品設有(you)工頻切換功(gong)能(neng)，以(yi)確保變(bian)頻器(qi)(qi)出現(xian)故障時，可以(yi)通過裝置實現(xian)最低故障發生，減少設備出現(xian)損壞次數(shu)。 

國家發改委啟動的十大(da)重點節能工程之(zhi)一就是電機(ji)系統節能，并要求：推廣(guang)變(bian)頻調速(su)節能技術，風機(ji)、水泵、壓(ya)縮機(ji)等(deng)通用機(ji)械系統采(cai)用變(bian)頻調速(su)節能措施(shi)，工業(ye)機(ji)械采(cai)用交流電動機(ji)變(bian)頻調速(su)技術；制定(ding)相關(guan)經濟(ji)激勵政策、完善電機(ji)能效標(biao)準體系等(deng)配套措施(shi)；“十一五”期間，實(shi)現電機(ji)系統運行效率提(ti)高(gao)2個百(bai)分點，形(xing)成年節電能力(li)200億千瓦(wa)時。 

為推動全社(she)會展開(kai)節能(neng)降耗，緩解能(neng)源(yuan)瓶(ping)頸的制約，建設節能(neng)型社(she)會，國(guo)家發改(gai)委制定了《節能(neng)中長期專項規(gui)劃》，并在2004年11月25日向全社(she)會發布(bu)。該“規(gui)劃”明確指出：能(neng)源(yuan)是(shi)戰(zhan)略資(zi)源(yuan)，是(shi)全面建設小(xiao)康社(she)會的重要物質基礎，必須堅持節約優(you)先(xian)。 

隨著電(dian)(dian)(dian)力電(dian)(dian)(dian)子(zi)技(ji)術(shu)(shu)(shu)和(he)(he)開關(guan)(guan)(guan)(guan)(guan)(guan)(guan)行業的(de)(de)飛速發展，電(dian)(dian)(dian)力電(dian)(dian)(dian)子(zi)設(she)備與(yu)人們的(de)(de)工作、生活的(de)(de)關(guan)(guan)(guan)(guan)(guan)(guan)(guan)系日益密(mi)切(qie)，而(er)電(dian)(dian)(dian)子(zi)設(she)備都離不開可靠(kao)的(de)(de)電(dian)(dian)(dian)源(yuan)(yuan)，進入(ru)(ru)80年代(dai)計算機(ji)電(dian)(dian)(dian)源(yuan)(yuan)全面實(shi)現了(le)開關(guan)(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)化，率(lv)先完成(cheng)計算機(ji)的(de)(de)電(dian)(dian)(dian)源(yuan)(yuan)換代(dai)，進入(ru)(ru)90年代(dai)開關(guan)(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)相(xiang)繼(ji)進入(ru)(ru)各(ge)種(zhong)電(dian)(dian)(dian)子(zi)、電(dian)(dian)(dian)器設(she)備領域，程(cheng)控交換機(ji)、通訊(xun)、電(dian)(dian)(dian)子(zi)檢測(ce)設(she)備電(dian)(dian)(dian)源(yuan)(yuan)、控制(zhi)設(she)備電(dian)(dian)(dian)源(yuan)(yuan)等都已廣泛地使用了(le)開關(guan)(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)，更(geng)促進了(le)開關(guan)(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)技(ji)術(shu)(shu)(shu)的(de)(de)迅速發展。開關(guan)(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)是利用現代(dai)電(dian)(dian)(dian)力電(dian)(dian)(dian)子(zi)技(ji)術(shu)(shu)(shu)，控制(zhi)開關(guan)(guan)(guan)(guan)(guan)(guan)(guan)晶體管開通和(he)(he)關(guan)(guan)(guan)(guan)(guan)(guan)(guan)斷的(de)(de)時間比率(lv)，維(wei)持穩定輸出(chu)電(dian)(dian)(dian)壓的(de)(de)一種(zhong)電(dian)(dian)(dian)源(yuan)(yuan)，開關(guan)(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)一般由脈(mo)沖寬度調制(zhi)（PWM）控制(zhi)IC和(he)(he)MOSFET構成(cheng)。開關(guan)(guan)(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)和(he)(he)線性電(dian)(dian)(dian)源(yuan)(yuan)相(xiang)比，二者(zhe)的(de)(de)成(cheng)本都隨著輸出(chu)功(gong)率(lv)的(de)(de)增加(jia)而(er)增長，但二者(zhe)增長速率(lv)各(ge)異(yi)。