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，交流(liu)(liu)(liu)進交流(liu)(liu)(liu)出，一般(ban)與直(zhi)流(liu)(liu)(liu)屏配(pei)(pei)套，給直(zhi)流(liu)(liu)(liu)屏和(he)配(pei)(pei)電(dian)室提供電(dian)源分配(pei)(pei)；直(zhi)流(liu)(liu)(liu)屏是把交流(liu)(liu)(liu)整成直(zhi)流(liu)(liu)(liu)給電(dian)池充電(dian)，當市(shi)電(dian)市(shi)電(dian)的時候通過電(dian)池組給母線供電(dian)給高壓分合閘機構以及(ji)控制系(xi)統和(he)綜保提供電(dian)源。

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2、用途不同

直流屏用于大(da)中(zhong)小型發電(dian)(dian)廠(chang)和變電(dian)(dian)站，為高壓開關在正常(chang)運(yun)行(xing)和事故狀(zhuang)態下(xia)的(de)分合閘、繼(ji)電(dian)(dian)保護(hu)、自動控制、事故照明(ming)等(deng)提供直流電(dian)(dian)源。

直流(liu)屏的可靠性是(shi)(shi)其他電(dian)(dian)(dian)源(yuan)裝置供電(dian)(dian)(dian)的，它能(neng)滿足變電(dian)(dian)(dian)站和(he)發電(dian)(dian)(dian)廠這些場合對電(dian)(dian)(dian)源(yuan)的高可靠性要求；交(jiao)流(liu)屏的作用就是(shi)(shi)用來顯示(shi)各高低壓(ya)配電(dian)(dian)(dian)柜的運行狀況，一(yi)般上(shang)面(mian)有電(dian)(dian)(dian)流(liu)、電(dian)(dian)(dian)壓(ya)顯示(shi)和(he)分合閘指(zhi)示(shi)。

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(ping)主(zhu)要(yao)由機柜、整流(liu)模塊、絕緣(yuan)檢測、監控系(xi)統、電(dian)(dian)(dian)池(chi)巡檢、降壓單元等組成，總體分為兩個(ge)部分，其中一(yi)部分是電(dian)(dian)(dian)池(chi)屏(ping)，另一(yi)部分是充電(dian)(dian)(dian)屏(ping)，電(dian)(dian)(dian)池(chi)屏(ping)就(jiu)是用(yong)來(lai)擺放蓄電(dian)(dian)(dian)池(chi)的(de)機柜，這些電(dian)(dian)(dian)池(chi)可為直(zhi)流(liu)系(xi)統提供直(zhi)流(liu)電(dian)(dian)(dian)源(yuan)，目(mu)前(qian)使(shi)用(yong)的(de)蓄電(dian)(dian)(dian)池(chi)主(zhu)要(yao)是閥控式密封免維護鉛酸電(dian)(dian)(dian)池(chi)。直(zhi)流(liu)屏(ping)主(zhu)要(yao)是為高壓開關柜、儀器儀表、事故照(zhao)明等提供直(zhi)流(liu)電(dian)(dian)(dian)源(yuan)。

交流屏一般由電壓表、電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)表、開(kai)關、信(xin)號燈、保險、線路等組成，根據不(bu)同用(yong)戶用(yong)電(dian)(dian)(dian)(dian)設備的(de)不(bu)同以(yi)及(ji)用(yong)電(dian)(dian)(dian)(dian)量(liang)的(de)不(bu)一樣，交流(liu)(liu)(liu)屏的(de)配置有(you)所區別(bie)，其作(zuo)用(yong)就是在(zai)整(zheng)個動力系(xi)統中(zhong)監測總電(dian)(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)或分(fen)支電(dian)(dian)(dian)(dian)壓(ya)、以(yi)及(ji)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)使用(yong)情(qing)況，可根據所需情(qing)況開(kai)關支路。

2、從電源輸出上進行辨別

不管(guan)是(shi)直(zhi)(zhi)流(liu)(liu)屏(ping)還是(shi)交(jiao)(jiao)流(liu)(liu)屏(ping)，其輸(shu)(shu)入電(dian)(dian)(dian)(dian)源(yuan)都是(shi)交(jiao)(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)，在電(dian)(dian)(dian)(dian)源(yuan)輸(shu)(shu)出上(shang)，交(jiao)(jiao)流(liu)(liu)屏(ping)輸(shu)(shu)出的(de)是(shi)交(jiao)(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)，直(zhi)(zhi)流(liu)(liu)屏(ping)輸(shu)(shu)出的(de)是(shi)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)。當交(jiao)(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)停電(dian)(dian)(dian)(dian)時，交(jiao)(jiao)流(liu)(liu)屏(ping)輸(shu)(shu)出中斷，直(zhi)(zhi)流(liu)(liu)屏(ping)仍可進行直(zhi)(zhi)流(liu)(liu)輸(shu)(shu)出。由此可見，交(jiao)(jiao)流(liu)(liu)屏(ping)就是(shi)交(jiao)(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)輸(shu)(shu)入，交(jiao)(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)輸(shu)(shu)出，并(bing)與直(zhi)(zhi)流(liu)(liu)屏(ping)配合使用(yong)，分配直(zhi)(zhi)流(liu)(liu)屏(ping)和配電(dian)(dian)(dian)(dian)室(shi)的(de)電(dian)(dian)(dian)(dian)源(yuan)。