大連控制柜、變頻控制箱和大連PLC變頻控制柜出(chu)現在市場中引起銷(xiao)售(shou)熱潮，其功能(neng)全面特點是起到(dao)很大作用，不(bu)同(tong)(tong)功能(neng)迎合到(dao)市場不(bu)同(tong)(tong)用戶群體(ti)，迅速占據到(dao)各(ge)大市場空間。以下就(jiu)來為大家全面介紹PLC變頻控制(zhi)柜功能(neng)信息內容： 

1、電(dian)源(yuan)切換與保護功能(neng)，PLC變頻(pin)控(kong)制(zhi)柜通(tong)常設(she)計(ji)有短路(lu)器元件，連接(jie)著(zhu)進線(xian)電(dian)源(yuan)，可以幫助變頻(pin)設(she)備(bei)完成電(dian)路(lu)通(tong)斷控(kong)制(zhi)，并(bing)能(neng)夠在(zai)電(dian)路(lu)和(he)變頻(pin)器出(chu)現短路(lu)或是(shi)運(yun)行(xing)過載時給予保護，解決設(she)備(bei)在(zai)運(yun)行(xing)中會發(fa)生電(dian)力輸送安全(quan)問題，對操控(kong)人員人身安全(quan)起到保護。 

2、變(bian)頻調速(su)功能，PLC變(bian)頻控制柜(ju)面(mian)板上設(she)有變(bian)頻調速(su)用電(dian)位器，可以(yi)根據操作人員輸(shu)送頻率(lv)，向電(dian)機(ji)輸(shu)送指令信號，控制電(dian)機(ji)運行(xing)速(su)度，并且在部分產品(pin)設(she)有工頻切換(huan)功能，以(yi)確保變(bian)頻器出現(xian)(xian)故障(zhang)時，可以(yi)通過裝置實現(xian)(xian)最低(di)故障(zhang)發生，減(jian)少設(she)備出現(xian)(xian)損壞次數。 

國家(jia)發改委啟動(dong)的十大重(zhong)點(dian)節能工程(cheng)之一就(jiu)是(shi)電(dian)(dian)(dian)機(ji)(ji)系統節能，并要求：推(tui)廣變頻調(diao)速(su)節能技術(shu)，風(feng)機(ji)(ji)、水泵、壓縮機(ji)(ji)等(deng)通用機(ji)(ji)械系統采用變頻調(diao)速(su)節能措施，工業(ye)機(ji)(ji)械采用交流(liu)電(dian)(dian)(dian)動(dong)機(ji)(ji)變頻調(diao)速(su)技術(shu)；制定(ding)相(xiang)關(guan)經濟激勵政策、完善(shan)電(dian)(dian)(dian)機(ji)(ji)能效標準體系等(deng)配(pei)套措施；“十一五(wu)”期間(jian)，實現電(dian)(dian)(dian)機(ji)(ji)系統運行效率提高2個百分點(dian)，形成年(nian)節電(dian)(dian)(dian)能力200億千瓦時。 

為推動全(quan)(quan)社(she)會展(zhan)開節(jie)能(neng)降(jiang)耗，緩解能(neng)源瓶頸的(de)制(zhi)約(yue)，建設節(jie)能(neng)型社(she)會，國家發改委(wei)制(zhi)定了《節(jie)能(neng)中長期(qi)專項規劃(hua)》，并在2004年11月25日向全(quan)(quan)社(she)會發布。該“規劃(hua)”明確指(zhi)出(chu)：能(neng)源是戰略(lve)資(zi)源，是全(quan)(quan)面建設小康社(she)會的(de)重(zhong)要物質基礎，必須堅(jian)持節(jie)約(yue)優先。 

隨著電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)子技(ji)(ji)(ji)術和開(kai)關(guan)(guan)(guan)(guan)(guan)行業的(de)飛速發展(zhan)，電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)子設備(bei)(bei)與人們的(de)工(gong)作、生活的(de)關(guan)(guan)(guan)(guan)(guan)系日益(yi)密切，而(er)電(dian)(dian)(dian)(dian)(dian)(dian)子設備(bei)(bei)都(dou)離不開(kai)可靠(kao)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，進入(ru)80年代(dai)(dai)(dai)計(ji)(ji)算機(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)全面實現(xian)了(le)開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)化，率(lv)先完成(cheng)計(ji)(ji)算機(ji)(ji)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)換(huan)代(dai)(dai)(dai)，進入(ru)90年代(dai)(dai)(dai)開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)相(xiang)繼進入(ru)各(ge)種電(dian)(dian)(dian)(dian)(dian)(dian)子、電(dian)(dian)(dian)(dian)(dian)(dian)器設備(bei)(bei)領域，程(cheng)控(kong)交換(huan)機(ji)(ji)、通訊、電(dian)(dian)(dian)(dian)(dian)(dian)子檢測設備(bei)(bei)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)、控(kong)制設備(bei)(bei)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)等都(dou)已(yi)廣泛地使用(yong)了(le)開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，更(geng)促進了(le)開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)技(ji)(ji)(ji)術的(de)迅(xun)速發展(zhan)。開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)是(shi)利(li)用(yong)現(xian)代(dai)(dai)(dai)電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)子技(ji)(ji)(ji)術，控(kong)制開(kai)關(guan)(guan)(guan)(guan)(guan)晶體(ti)管(guan)開(kai)通和關(guan)(guan)(guan)(guan)(guan)斷的(de)時(shi)間(jian)比率(lv)，維持穩定輸出電(dian)(dian)(dian)(dian)(dian)(dian)壓的(de)一(yi)種電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)一(yi)般由(you)脈沖(chong)寬度調制（PWM）控(kong)制IC和MOSFET構成(cheng)。開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)和線(xian)性電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)相(xiang)比，二者的(de)成(cheng)本都(dou)隨著輸出功率(lv)的(de)增(zeng)加而(er)增(zeng)長(chang)，但(dan)二者增(zeng)長(chang)速率(lv)各(ge)異。