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)流(liu)(liu)進交(jiao)流(liu)(liu)出(chu)，一般(ban)與直流(liu)(liu)屏(ping)配(pei)套，給直流(liu)(liu)屏(ping)和配(pei)電(dian)(dian)室提(ti)供(gong)電(dian)(dian)源分(fen)(fen)配(pei)；直流(liu)(liu)屏(ping)是把交(jiao)流(liu)(liu)整(zheng)成直流(liu)(liu)給電(dian)(dian)池充(chong)電(dian)(dian)，當市(shi)電(dian)(dian)市(shi)電(dian)(dian)的時候(hou)通過電(dian)(dian)池組給母線供(gong)電(dian)(dian)給高壓分(fen)(fen)合閘機構以(yi)及控(kong)制系統和綜保提(ti)供(gong)電(dian)(dian)源。

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2、用途不同

直(zhi)流屏用于(yu)大(da)中(zhong)小型發電(dian)(dian)廠和變電(dian)(dian)站，為高壓開關在正常(chang)運行和事故(gu)(gu)狀態下的分合閘、繼電(dian)(dian)保護、自(zi)動控制、事故(gu)(gu)照明等提供(gong)直(zhi)流電(dian)(dian)源(yuan)。

直流屏(ping)的(de)可靠性是(shi)(shi)其(qi)他(ta)電(dian)源裝(zhuang)置供電(dian)的(de)，它能滿(man)足(zu)變電(dian)站和發電(dian)廠這些場合(he)對電(dian)源的(de)高(gao)可靠性要求；交流屏(ping)的(de)作用(yong)就是(shi)(shi)用(yong)來(lai)顯示各高(gao)低壓配(pei)電(dian)柜的(de)運行狀況，一般上(shang)面有電(dian)流、電(dian)壓顯示和分合(he)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)流(liu)屏主(zhu)(zhu)要(yao)由機柜、整流(liu)模塊、絕緣檢測、監控系統、電(dian)(dian)(dian)池巡檢、降壓(ya)單(dan)元等(deng)(deng)組成，總體(ti)分為兩個(ge)部(bu)(bu)分，其中一部(bu)(bu)分是(shi)電(dian)(dian)(dian)池屏，另一部(bu)(bu)分是(shi)充電(dian)(dian)(dian)屏，電(dian)(dian)(dian)池屏就是(shi)用來擺放蓄(xu)電(dian)(dian)(dian)池的(de)(de)機柜，這些(xie)電(dian)(dian)(dian)池可(ke)為直(zhi)流(liu)系統提供(gong)直(zhi)流(liu)電(dian)(dian)(dian)源，目(mu)前使用的(de)(de)蓄(xu)電(dian)(dian)(dian)池主(zhu)(zhu)要(yao)是(shi)閥控式密(mi)封免維護鉛酸(suan)電(dian)(dian)(dian)池。直(zhi)流(liu)屏主(zhu)(zhu)要(yao)是(shi)為高壓(ya)開(kai)關柜、儀器(qi)儀表、事故(gu)照明等(deng)(deng)提供(gong)直(zhi)流(liu)電(dian)(dian)(dian)源。

交流屏一般由電壓表、電(dian)(dian)流表、開(kai)關(guan)(guan)、信號(hao)燈、保險、線路等組成，根據(ju)不(bu)同用(yong)戶用(yong)電(dian)(dian)設備的不(bu)同以及用(yong)電(dian)(dian)量(liang)的不(bu)一樣(yang)，交流屏的配置有所(suo)區別，其作用(yong)就是在整個動力系統中監(jian)測(ce)總電(dian)(dian)壓、電(dian)(dian)流或分支電(dian)(dian)壓、以及電(dian)(dian)流的使用(yong)情況，可根據(ju)所(suo)需情況開(kai)關(guan)(guan)支路。

2、從電源輸出上進行辨別

不(bu)管是直(zhi)(zhi)流(liu)屏(ping)(ping)還是交(jiao)(jiao)流(liu)屏(ping)(ping)，其輸(shu)(shu)入電(dian)(dian)源都是交(jiao)(jiao)流(liu)電(dian)(dian)，在(zai)電(dian)(dian)源輸(shu)(shu)出上，交(jiao)(jiao)流(liu)屏(ping)(ping)輸(shu)(shu)出的是交(jiao)(jiao)流(liu)電(dian)(dian)，直(zhi)(zhi)流(liu)屏(ping)(ping)輸(shu)(shu)出的是直(zhi)(zhi)流(liu)電(dian)(dian)。當交(jiao)(jiao)流(liu)電(dian)(dian)停電(dian)(dian)時，交(jiao)(jiao)流(liu)屏(ping)(ping)輸(shu)(shu)出中斷，直(zhi)(zhi)流(liu)屏(ping)(ping)仍可(ke)進行直(zhi)(zhi)流(liu)輸(shu)(shu)出。由(you)此可(ke)見(jian)，交(jiao)(jiao)流(liu)屏(ping)(ping)就是交(jiao)(jiao)流(liu)電(dian)(dian)輸(shu)(shu)入，交(jiao)(jiao)流(liu)電(dian)(dian)輸(shu)(shu)出，并與直(zhi)(zhi)流(liu)屏(ping)(ping)配(pei)合使用，分配(pei)直(zhi)(zhi)流(liu)屏(ping)(ping)和配(pei)電(dian)(dian)室的電(dian)(dian)源。