一、交流屏和直流屏有什么區別

1、性質不同

交流屏本質上就是低壓配電柜，交(jiao)(jiao)流(liu)(liu)進交(jiao)(jiao)流(liu)(liu)出(chu)，一般與直流(liu)(liu)屏(ping)配套，給直流(liu)(liu)屏(ping)和(he)配電(dian)(dian)室提供電(dian)(dian)源分(fen)(fen)配；直流(liu)(liu)屏(ping)是把交(jiao)(jiao)流(liu)(liu)整成直流(liu)(liu)給電(dian)(dian)池(chi)充(chong)電(dian)(dian)，當市電(dian)(dian)市電(dian)(dian)的時(shi)候通過電(dian)(dian)池(chi)組給母線供電(dian)(dian)給高壓分(fen)(fen)合閘機構以及控(kong)制系統和(he)綜保(bao)提供電(dian)(dian)源。

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2、用途不同

直流屏(ping)用(yong)于(yu)大(da)中小(xiao)型發電(dian)(dian)(dian)廠和變電(dian)(dian)(dian)站(zhan)，為高壓(ya)開關在正常運行和事(shi)故狀態下的分合(he)閘、繼電(dian)(dian)(dian)保護、自動控制、事(shi)故照明等提(ti)供直流電(dian)(dian)(dian)源。

直流(liu)屏的(de)(de)(de)可靠性是其他電源(yuan)裝(zhuang)置供電的(de)(de)(de)，它能滿足變電站和(he)發(fa)電廠這些場合對電源(yuan)的(de)(de)(de)高可靠性要(yao)求；交流(liu)屏的(de)(de)(de)作用就(jiu)是用來顯示各高低壓配電柜(ju)的(de)(de)(de)運行狀況，一般上面有電流(liu)、電壓顯示和(he)分合閘指示。

二、如何辨別交流屏和直流屏

1、從組成結構上進行辨別

直(zhi)(zhi)流(liu)屏(ping)主(zhu)要由機柜(ju)、整流(liu)模塊、絕緣檢(jian)測(ce)、監控系(xi)統、電(dian)(dian)(dian)池(chi)(chi)巡(xun)檢(jian)、降壓(ya)單元等組成(cheng)，總體分為(wei)兩個(ge)部分，其中(zhong)一部分是(shi)電(dian)(dian)(dian)池(chi)(chi)屏(ping)，另一部分是(shi)充電(dian)(dian)(dian)屏(ping)，電(dian)(dian)(dian)池(chi)(chi)屏(ping)就是(shi)用(yong)來擺放蓄電(dian)(dian)(dian)池(chi)(chi)的機柜(ju)，這(zhe)些(xie)電(dian)(dian)(dian)池(chi)(chi)可(ke)為(wei)直(zhi)(zhi)流(liu)系(xi)統提供直(zhi)(zhi)流(liu)電(dian)(dian)(dian)源，目前使用(yong)的蓄電(dian)(dian)(dian)池(chi)(chi)主(zhu)要是(shi)閥控式密封免(mian)維護(hu)鉛酸電(dian)(dian)(dian)池(chi)(chi)。直(zhi)(zhi)流(liu)屏(ping)主(zhu)要是(shi)為(wei)高(gao)壓(ya)開關柜(ju)、儀器儀表(biao)、事故(gu)照明等提供直(zhi)(zhi)流(liu)電(dian)(dian)(dian)源。

交流屏一般由電壓表、電(dian)(dian)流表、開關、信號(hao)燈、保(bao)險、線路(lu)等(deng)組成，根(gen)據(ju)不同(tong)(tong)用(yong)(yong)戶用(yong)(yong)電(dian)(dian)設備的(de)不同(tong)(tong)以(yi)及(ji)用(yong)(yong)電(dian)(dian)量的(de)不一樣，交流屏(ping)的(de)配(pei)置有所(suo)區(qu)別，其(qi)作(zuo)用(yong)(yong)就(jiu)是(shi)在整(zheng)個(ge)動力系統中(zhong)監測總(zong)電(dian)(dian)壓、電(dian)(dian)流或分支電(dian)(dian)壓、以(yi)及(ji)電(dian)(dian)流的(de)使用(yong)(yong)情(qing)況，可根(gen)據(ju)所(suo)需情(qing)況開關支路(lu)。

2、從電源輸出上進行辨別

不(bu)管是(shi)直流(liu)(liu)(liu)屏(ping)還是(shi)交(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)屏(ping)，其輸(shu)入(ru)電(dian)(dian)(dian)(dian)源(yuan)都(dou)是(shi)交(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)，在(zai)電(dian)(dian)(dian)(dian)源(yuan)輸(shu)出(chu)上，交(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)屏(ping)輸(shu)出(chu)的(de)是(shi)交(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)，直流(liu)(liu)(liu)屏(ping)輸(shu)出(chu)的(de)是(shi)直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)。當交(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)停電(dian)(dian)(dian)(dian)時(shi)，交(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)屏(ping)輸(shu)出(chu)中斷，直流(liu)(liu)(liu)屏(ping)仍可(ke)進行直流(liu)(liu)(liu)輸(shu)出(chu)。由此可(ke)見，交(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)屏(ping)就是(shi)交(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)輸(shu)入(ru)，交(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)輸(shu)出(chu)，并(bing)與(yu)直流(liu)(liu)(liu)屏(ping)配(pei)合使用，分(fen)配(pei)直流(liu)(liu)(liu)屏(ping)和配(pei)電(dian)(dian)(dian)(dian)室的(de)電(dian)(dian)(dian)(dian)源(yuan)。