UPS電(dian)(dian)(dian)(dian)源(yuan)作(zuo)為一種停電(dian)(dian)(dian)(dian)備(bei)用(yong)電(dian)(dian)(dian)(dian)源(yuan)設備(bei)，主要(yao)(yao)靠的(de)是內部電(dian)(dian)(dian)(dian)池(chi)能在(zai)有電(dian)(dian)(dian)(dian)的(de)時候儲存電(dian)(dian)(dian)(dian)能，停電(dian)(dian)(dian)(dian)時電(dian)(dian)(dian)(dian)池(chi)模式下(xia)自動(dong)啟(qi)動(dong)供電(dian)(dian)(dian)(dian)，輸出(chu)給重要(yao)(yao)設備(bei)使用(yong)，所以按照常理不(bu)接電(dian)(dian)(dian)(dian)池(chi)UPS電(dian)(dian)(dian)(dian)源(yuan)是肯定不(bu)能用(yong)的(de)，至少(shao)起不(bu)到斷電(dian)(dian)(dian)(dian)保(bao)護的(de)作(zuo)用(yong)。　　　　在(zai)有些UPS型號(hao)或有特殊定制設計的(de)UPS電(dian)(dian)(dian)(dian)源(yuan)中(zhong)，也有例外。大多數內置電(dian)(dian)(dian)(dian)池(chi)的(de)UPS電(dian)(dian)(dian)(dian)源(yuan)在(zai)不(bu)接電(dian)(dian)(dian)(dian)池(chi)情況下(xia)，是啟(qi)動(dong)不(bu)了的(de)，整(zheng)個電(dian)(dian)(dian)(dian)流(liu)電(dian)(dian)(dian)(dian)路處于斷路狀態(tai)，是肯定不(bu)能使用(yong)的(de)。

模塊化機器(qi)(qi)設(she)(she)備特(te)性是單元化、修的，工頻(pin)在(zai)線(xian)式USP電源，服務(wu)器(qi)(qi)處在(zai)封(feng)閉式情況，既能(neng)防(fang)污又能(neng)防(fang)止出現(xian)意外損害。有必須開(kai)展機器(qi)(qi)設(she)(she)備升(sheng)級(ji)或是維(wei)護保養的那時候，免費在(zai)線(xian)解決(jue)方(fang)便快捷(jie)，無需(xu)講機器(qi)(qi)設(she)(she)備拆(chai)卸出來*能(neng)進行升(sheng)級(ji)。

能夠兩機(ji)或(huo)多機(ji)串聯。具(ju)有電池測試維護保養(yang)、微型機(ji)監(jian)控器元人(ren)值(zhi)班、可遠程(cheng)控制(zhi)通(tong)訊等作用;在設(she)備組成上，電子器件規(gui)范化、模塊化、公差配合好;有寬(kuan)工作電壓鍵(jian)入、輸出、負載工作能力強等**特性。

當電(dian)壓終斷(安(an)全事(shi)故停電(dian))時(shi)，模(mo)塊化UPS電(dian)源馬(ma)上將機身(shen)充電(dian)電(dian)池的電(dian)磁能，根據逆變變換的方式向(xiang)負(fu)荷再次供貨230V交(jiao)流(liu)電(dian)流(liu)，使負(fu)荷保持一切正(zheng)常(chang)工作中并維護(hu)負(fu)荷軟、硬件配置沒受(shou)毀壞。

穩(wen)壓(ya)電路的(de)作用是(shi)為電路提(ti)供更加(jia)穩(wen)定(ding)的(de)直流(liu)電。整流(liu)濾波電路的(de)輸出電壓(ya)和理(li)想(xiang)直流(liu)電源還有一定(ding)的(de)差距，主(zhu)要因為兩(liang)方面(mian)的(de)原因

:第一(yi)，當負載電(dian)流(liu)發生變化時，由于整流(liu)濾波電(dian)路存在內阻，輸出(chu)的直流(liu)電(dian)壓將會(hui)隨之發生變化;

第二，當電(dian)(dian)網電(dian)(dian)壓有(you)波動時，整流電(dian)(dian)路的(de)輸(shu)出(chu)電(dian)(dian)壓與變壓器副邊電(dian)(dian)壓有(you)直接的(de)關(guan)系，因(yin)此輸(shu)出(chu)直流電(dian)(dian)壓也會發生變化(hua)。