大連控制柜、變頻控制箱和大連PLC變頻控制柜出現在(zai)市場中引起(qi)銷(xiao)售熱潮，其(qi)功(gong)能全面(mian)特點是起(qi)到(dao)很大作用，不同功(gong)能迎合到(dao)市場不同用戶群體(ti)，迅速占(zhan)據到(dao)各大市場空間。以下就(jiu)來為(wei)大家(jia)全面(mian)介(jie)紹PLC變(bian)頻控(kong)制柜功(gong)能信息內容： 

1、電(dian)源(yuan)切換與(yu)保(bao)護功能，PLC變頻(pin)控制柜通(tong)常設(she)計有短路器元件，連接(jie)著進線電(dian)源(yuan)，可以幫助變頻(pin)設(she)備(bei)完(wan)成(cheng)電(dian)路通(tong)斷控制，并能夠(gou)在電(dian)路和變頻(pin)器出現短路或是運行過載時給予保(bao)護，解決設(she)備(bei)在運行中(zhong)會發生電(dian)力輸送安全問題，對操(cao)控人員(yuan)人身(shen)安全起到保(bao)護。 

2、變頻(pin)調(diao)速(su)功(gong)能(neng)，PLC變頻(pin)控(kong)制柜面板(ban)上(shang)設(she)有(you)變頻(pin)調(diao)速(su)用電位器，可(ke)(ke)以(yi)根據操作人員輸送(song)頻(pin)率(lv)，向電機(ji)輸送(song)指令信號，控(kong)制電機(ji)運行速(su)度，并且在(zai)部分產品設(she)有(you)工頻(pin)切換功(gong)能(neng)，以(yi)確保變頻(pin)器出現故障(zhang)時，可(ke)(ke)以(yi)通過裝置實現最低故障(zhang)發生，減少(shao)設(she)備出現損(sun)壞次(ci)數。 

國(guo)家發改委啟動的(de)十大重點節能(neng)工程之一(yi)就是電(dian)(dian)(dian)機系統(tong)節能(neng)，并要(yao)求：推廣變(bian)頻調(diao)速(su)節能(neng)技術(shu)，風機、水(shui)泵、壓縮機等通(tong)用機械(xie)(xie)系統(tong)采用變(bian)頻調(diao)速(su)節能(neng)措(cuo)施(shi)，工業機械(xie)(xie)采用交(jiao)流(liu)電(dian)(dian)(dian)動機變(bian)頻調(diao)速(su)技術(shu)；制定相關經濟激(ji)勵政(zheng)策、完(wan)善電(dian)(dian)(dian)機能(neng)效標準體系等配套(tao)措(cuo)施(shi)；“十一(yi)五”期間，實現電(dian)(dian)(dian)機系統(tong)運行(xing)效率提高2個(ge)百分點，形成(cheng)年節電(dian)(dian)(dian)能(neng)力200億(yi)千(qian)瓦時。 

為(wei)推動全(quan)社會(hui)展開節(jie)能降耗，緩解(jie)能源瓶頸的(de)制(zhi)約，建設節(jie)能型社會(hui)，國家發(fa)改(gai)委制(zhi)定了《節(jie)能中長期(qi)專項(xiang)規(gui)(gui)劃(hua)》，并在2004年11月25日向全(quan)社會(hui)發(fa)布。該(gai)“規(gui)(gui)劃(hua)”明確指出：能源是戰略資源，是全(quan)面建設小康社會(hui)的(de)重要(yao)物質基(ji)礎，必(bi)須堅(jian)持節(jie)約優先。 

隨(sui)(sui)著電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)技術和開關行(xing)業的(de)(de)飛速發展，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)設(she)(she)備與(yu)人們的(de)(de)工作、生(sheng)活(huo)的(de)(de)關系日益密(mi)切(qie)，而(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)設(she)(she)備都(dou)離不開可靠的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，進(jin)入80年代(dai)計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)全面實(shi)現了(le)開關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)化，率(lv)(lv)先完成計算機的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)換代(dai)，進(jin)入90年代(dai)開關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)相繼(ji)進(jin)入各種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器設(she)(she)備領(ling)域(yu)，程控(kong)交(jiao)換機、通(tong)訊、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)檢(jian)測設(she)(she)備電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)、控(kong)制設(she)(she)備電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)等都(dou)已(yi)廣泛(fan)地使用(yong)了(le)開關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，更促(cu)進(jin)了(le)開關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)技術的(de)(de)迅速發展。開關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)是(shi)利(li)用(yong)現代(dai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)技術，控(kong)制開關晶體管(guan)開通(tong)和關斷(duan)的(de)(de)時間比(bi)率(lv)(lv)，維持穩(wen)定輸(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓的(de)(de)一(yi)種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，開關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)一(yi)般由脈沖(chong)寬度調(diao)制（PWM）控(kong)制IC和MOSFET構成。開關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)和線(xian)性(xing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)相比(bi)，二者的(de)(de)成本都(dou)隨(sui)(sui)著輸(shu)出(chu)功率(lv)(lv)的(de)(de)增(zeng)加而(er)(er)增(zeng)長，但二者增(zeng)長速率(lv)(lv)各異。