UPS電源的保護功能主要包含以下幾個方面：

       1、停(ting)電保護(hu)作(zuo)用

       市電(dian)電(dian)網瞬間停電(dian)時(shi)立即由UPS電(dian)源系統將UPS蓄電(dian)池直流電(dian)源轉換成交流電(dian)繼續為負載(zai)供電(dian)，避免因(yin)停電(dian)而帶(dai)來的不便(bian)和損(sun)失(shi)。

       2、穩壓作(zuo)用

       市(shi)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓容易受(shou)電(dian)(dian)(dian)(dian)(dian)(dian)力輸送線路的距(ju)離和(he)品質(zhi)影響，離變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)所較(jiao)近的用(yong)(yong)(yong)戶(hu)電(dian)(dian)(dian)(dian)(dian)(dian)壓較(jiao)高(gao)，離變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)所較(jiao)遠的用(yong)(yong)(yong)戶(hu)電(dian)(dian)(dian)(dian)(dian)(dian)壓則(ze)會偏低(di)較(jiao)低(di)。電(dian)(dian)(dian)(dian)(dian)(dian)壓過高(gao)或過低(di)都會影響用(yong)(yong)(yong)戶(hu)儀(yi)器設(she)備的使(shi)(shi)(shi)用(yong)(yong)(yong)質(zhi)量和(he)使(shi)(shi)(shi)用(yong)(yong)(yong)壽(shou)命(ming)(ming)，較(jiao)嚴(yan)重(zhong)時則(ze)會損壞設(she)備，給用(yong)(yong)(yong)戶(hu)造(zao)成重(zhong)大(da)損失。UPS電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)系(xi)統的使(shi)(shi)(shi)用(yong)(yong)(yong)則(ze)可(ke)以(yi)為用(yong)(yong)(yong)戶(hu)設(she)備提供穩定的電(dian)(dian)(dian)(dian)(dian)(dian)壓電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)，保障設(she)備的正常(chang)運(yun)行和(he)延長(chang)使(shi)(shi)(shi)用(yong)(yong)(yong)壽(shou)命(ming)(ming)。

       3、突波保(bao)護作用

       通常UPS電源系統(tong)會有尖端放(fang)電設計(ji)吸收突波(bo)，避免因突波(bo)問題影響設備的(de)使(shi)用效(xiao)率和壽命(ming)，為設備提供保護。

       4、高低電壓保(bao)護作用

       當市(shi)電(dian)(dian)電(dian)(dian)壓(ya)時(shi)(shi)(shi)高(gao)時(shi)(shi)(shi)低，UPS電(dian)(dian)源內的穩壓(ya)器(qi)(AVR)使市(shi)電(dian)(dian)電(dian)(dian)壓(ya)保(bao)持在可使用的安(an)全范圍，確保(bao)設備可以正常運行(xing)。當高(gao)低電(dian)(dian)壓(ya)超過可使用的范圍時(shi)(shi)(shi)，UPS電(dian)(dian)源系統(tong)則將(jiang)啟動蓄電(dian)(dian)池供(gong)電(dian)(dian)，保(bao)障設備的持續運行(xing)。

       5、諧(xie)波失真保護作用(yong)

       電(dian)(dian)(dian)力經由(you)輸(shu)配電(dian)(dian)(dian)線路(lu)傳送至使(shi)(shi)用端時(shi)，電(dian)(dian)(dian)壓波形失真，基波電(dian)(dian)(dian)流(liu)發生變化產生諧(xie)波。諧(xie)波會影響(xiang)設備的(de)(de)使(shi)(shi)用，通過UPS電(dian)(dian)(dian)源則能為設備提(ti)(ti)供(gong)穩定高品(pin)質的(de)(de)電(dian)(dian)(dian)源，有(you)效提(ti)(ti)高設備的(de)(de)運(yun)行效率和壽命(ming)。

       6、穩定(ding)頻率(lv)作用

       頻率(lv)就(jiu)是市電每一秒變動的(de)(de)(de)周(zhou)期，50Hz就(jiu)是每秒50周(zhou)次。市電發電機運(yun)轉(zhuan)(zhuan)(zhuan)時(shi)受到用(yong)戶端用(yong)電量的(de)(de)(de)突(tu)然變化(hua)而造成(cheng)轉(zhuan)(zhuan)(zhuan)速的(de)(de)(de)變動將使轉(zhuan)(zhuan)(zhuan)換出來的(de)(de)(de)電力頻率(lv)不定，通(tong)過UPS電源轉(zhuan)(zhuan)(zhuan)換的(de)(de)(de)電力可提供穩定的(de)(de)(de)頻率(lv)，確保儀器設備的(de)(de)(de)正常(chang)工作。

       7、瞬(shun)間保護作用

       市(shi)電有(you)時(shi)會發生電壓(ya)上涌和下陷或瞬間壓(ya)降，這樣的(de)問(wen)題會影響(xiang)設(she)備的(de)精(jing)準度，嚴重時(shi)會損(sun)壞精(jing)密設(she)備使用戶遭受損(sun)失。UPS系統可以提供穩定的(de)電壓(ya)，從而保護設(she)備。