1、有(you)市(shi)電(dian)時(shi)UPS輸(shu)出(chu)正(zheng)常(chang)，而(er)無(wu)市(shi)電(dian)時(shi)蜂(feng)鳴(ming)器(qi)長(zhang)鳴(ming)，無(wu)輸(shu)出(chu)。
故(gu)障(zhang)分(fen)析(xi)：從(zong)現(xian)象(xiang)判(pan)斷(duan)為(wei)蓄(xu)電(dian)池(chi)和(hu)逆(ni)變(bian)器(qi)部(bu)分(fen)故(gu)障(zhang)，可(ke)按(an)以(yi)下(xia)程(cheng)序(xu)檢(jian)查(cha)：
1）檢(jian)查(cha)蓄(xu)電(dian)池(chi)電(dian)壓(ya)，看(kan)蓄(xu)電(dian)池(chi)是(shi)否(pi)充(chong)電(dian)不(bu)足(ju)，若(ruo)蓄(xu)電(dian)池(chi)充(chong)電(dian)不(bu)足(ju)，則(ze)要(yao)檢(jian)查(cha)是(shi)蓄(xu)電(dian)池(chi)本(ben)身(shen)的(di)故(gu)障(zhang)還(huan)是(shi)充(chong)電(dian)電(dian)路(lu)故(gu)障(zhang)。
2）若(ruo)蓄(xu)電(dian)池(chi)工(gong)作(zuo)電(dian)壓(ya)正(zheng)常(chang)，檢(jian)查(cha)逆(ni)變(bian)器(qi)驅(qu)動(dong)電(dian)路(lu)工(gong)作(zuo)是(shi)否(pi)正(zheng)常(chang)，若(ruo)驅(qu)動(dong)電(dian)路(lu)輸(shu)出(chu)正(zheng)常(chang)，說(shui)明(ming)逆(ni)變(bian)器(qi)損(sun)壞(huai)。
3）若(ruo)逆(ni)變(bian)器(qi)驅(qu)動(dong)電(dian)路(lu)工(gong)作(zuo)不(bu)正(zheng)常(chang)，則(ze)檢(jian)查(cha)波(bo)形(xing)產(chan)生(sheng)電(dian)路(lu)有(you)無(wu)PWM控(kong)製(zhi)信(xin)號(hao)輸(shu)出(chu)，若(ruo)有(you)控(kong)製(zhi)信(xin)號(hao)輸(shu)出(chu)，說(shui)明(ming)故(gu)障(zhang)在(zai)逆(ni)變(bian)器(qi)驅(qu)動(dong)電(dian)路(lu)。
4）若(ruo)波(bo)形(xing)產(chan)生(sheng)電(dian)路(lu)無(wu)PWM控(kong)製(zhi)信(xin)號(hao)輸(shu)出(chu)，則(ze)檢(jian)查(cha)其(qi)輸(shu)出(chu)是(shi)否(pi)因(yin)保(bao)護(hu)電(dian)路(lu)工(gong)作(zuo)而(er)封(feng)鎖(suo)，若(ruo)有(you)則(ze)查(cha)明(ming)保(bao)護(hu)原(yuan)因(yin)；
5）若(ruo)保(bao)護(hu)電(dian)路(lu)沒(mo)有(you)工(gong)作(zuo)且(qie)工(gong)作(zuo)電(dian)壓(ya)正(zheng)常(chang)，而(er)波(bo)形(xing)產(chan)生(sheng)電(dian)路(lu)無(wu)PWM波(bo)形(xing)輸(shu)出(chu)則(ze)說(shui)明(ming)波(bo)形(xing)產(chan)生(sheng)電(dian)路(lu)損(sun)壞(huai)。
上(shang)述(shu)排(pai)故(gu)順(shun)序(xu)也(ye)可(ke)倒(dao)過(guo)來(lai)進(jin)行(hang)，有(you)時(shi)能(neng)更(geng)快(kuai)發(fa)現(xian)故(gu)障(zhang)。
2、蓄(xu)電(dian)池(chi)電(dian)壓(ya)偏(pian)低(di)，但(dan)開(kai)機(ji)充(chong)電(dian)十(shi)多(duo)小(xiao)時(shi)，蓄(xu)電(dian)池(chi)電(dian)壓(ya)仍(reng)充(chong)不(bu)上(shang)去(qu)。
故(gu)障(zhang)分(fen)析(xi)：從(zong)現(xian)象(xiang)判(pan)斷(duan)為(wei)蓄(xu)電(dian)池(chi)或(huo)充(chong)電(dian)電(dian)路(lu)故(gu)障(zhang)，可(ke)按(an)以(yi)下(xia)步(bu)驟(zhou)檢(jian)查(cha)：
1）檢(jian)查(cha)充(chong)電(dian)電(dian)路(lu)輸(shu)入(ru)輸(shu)出(chu)電(dian)壓(ya)是(shi)否(pi)正(zheng)常(chang)；
2）若(ruo)充(chong)電(dian)電(dian)路(lu)輸(shu)入(ru)正(zheng)常(chang)，輸(shu)出(chu)不(bu)正(zheng)常(chang)，斷(duan)開(kai)蓄(xu)電(dian)池(chi)；
3）再(zai)測(ce)，若(ruo)仍(reng)不(bu)正(zheng)常(chang)則(ze)為(wei)充(chong)電(dian)電(dian)路(lu)故(gu)障(zhang)；
4）若(ruo)斷(duan)開(kai)蓄(xu)電(dian)池(chi)後(hou)充(chong)電(dian)電(dian)路(lu)輸(shu)入(ru)、輸(shu)出(chu)均(jun)正(zheng)常(chang)，則(ze)說(shui)明(ming)蓄(xu)電(dian)池(chi)已(yi)因(yin)長(zhang)期(qi)未(wei)充(chong)電(dian)、過(guo)放(fang)或(huo)已(yi)到(dao)壽(shou)命(ming)期(qi)等(deng)原(yuan)因(yin)而(er)損(sun)壞(huai)。
3、逆(ni)變(bian)器(qi)功(gong)率(shuai)級(ji)一(yi)對(dui)功(gong)放(fang)晶(jing)體(ti)管(guan)損(sun)壞(huai)，更(geng)換(huan)同(tong)型(xing)號(hao)晶(jing)體(ti)管(guan)後(hou)，運(yun)行(hang)一(yi)段(duan)時(shi)間(jian)又(you)燒(shao)壞(huai)的(di)原(yuan)因(yin)是(shi)電(dian)流(liu)過(guo)大(dai)，而(er)引(yin)起(qi)電(dian)流(liu)過(guo)大(dai)的(di)原(yuan)因(yin)有(you)：
1）過(guo)流(liu)保(bao)護(hu)失(shi)效(xiao)。當(dang)逆(ni)變(bian)器(qi)輸(shu)出(chu)發(fa)生(sheng)過(guo)電(dian)流(liu)時(shi)，過(guo)流(liu)保(bao)護(hu)電(dian)路(lu)不(bu)起(qi)作(zuo)用(yong)；
2）脈(mo)寬(kuan)調(diao)製(zhi)（PWM）組(zu)件(jian)故(gu)障(zhang)，輸(shu)出(chu)的(di)兩(liang)路(lu)互(hu)補(bu)波(bo)形(xing)不(bu)對(dui)稱(chen)，一(yi)個(ge)導(dao)通(tong)時(shi)間(jian)長(zhang)，而(er)另(ling)一(yi)個(ge)導(dao)通(tong)時(shi)間(jian)短(duan)，使(shi)兩(liang)臂(bi)工(gong)作(zuo)不(bu)平(ping)衡(heng)，甚(shen)至(zhi)兩(liang)臂(bi)同(tong)時(shi)導(dao)通(tong)，造(zao)成(cheng)兩(liang)管(guan)損(sun)壞(huai)；
3）功(gong)率(shuai)管(guan)參(shen)數(shuo)相(xiang)差(chai)較(jiao)大(dai)，此(ci)時(shi)即(ji)使(shi)輸(shu)入(ru)對(dui)稱(chen)波(bo)形(xing)，輸(shu)出(chu)也(ye)會(kuai)不(bu)對(dui)稱(chen)，該(gai)波(bo)形(xing)經(jing)輸(shu)出(chu)變(bian)壓(ya)器(qi)，造(zao)成(cheng)偏(pian)磁(ci)，即(ji)磁(ci)通(tong)不(bu)平(ping)衡(heng)，積(ji)累(lei)下(xia)去(qu)導(dao)致(zhi)變(bian)壓(ya)器(qi)飽(bao)和(hu)而(er)電(dian)流(liu)驟(zhou)增(zeng)，燒(shao)壞(huai)功(gong)率(shuai)管(guan)，而(er)一(yi)隻(zhi)燒(shao)壞(huai)，另(ling)一(yi)隻(zhi)也(ye)隨(sui)之(zhi)燒(shao)壞(huai)。
4、UPS開(kai)機(ji)後(hou)，麵(mian)板(pan)上(shang)無(wu)任(ren)何(he)顯(xian)示(shi)，UPS不(bu)工(gong)作(zuo)。
故(gu)障(zhang)分(fen)析(xi)：從(zong)故(gu)障(zhang)現(xian)象(xiang)判(pan)斷(duan)，其(qi)故(gu)障(zhang)在(zai)市(shi)電(dian)輸(shu)入(ru)、蓄(xu)電(dian)池(chi)及(ji)市(shi)電(dian)檢(jian)測(ce)部(bu)分(fen)及(ji)蓄(xu)電(dian)池(chi)電(dian)壓(ya)檢(jian)測(ce)回(hui)路(lu)：
1）檢(jian)查(cha)市(shi)電(dian)輸(shu)入(ru)保(bao)險(xian)絲(si)是(shi)否(pi)燒(shao)毀(hui)；
2）若(ruo)市(shi)電(dian)輸(shu)入(ru)保(bao)險(xian)絲(si)完(wan)好(hao)，檢(jian)查(cha)蓄(xu)電(dian)池(chi)保(bao)險(xian)是(shi)否(pi)燒(shao)毀(hui)，因(yin)為(wei)某(mou)些(xie)UPS當(dang)自(zi)檢(jian)不(bu)到(dao)蓄(xu)電(dian)池(chi)電(dian)壓(ya)時(shi)，會(kuai)將(qiang)UPS的(di)所(suo)有(you)輸(shu)出(chu)及(ji)顯(xian)示(shi)關(guan)閉(bi)；
3）若(ruo)蓄(xu)電(dian)池(chi)保(bao)險(xian)完(wan)好(hao)，檢(jian)查(cha)市(shi)電(dian)檢(jian)測(ce)電(dian)路(lu)工(gong)作(zuo)是(shi)否(pi)正(zheng)常(chang)，若(ruo)市(shi)電(dian)檢(jian)測(ce)電(dian)路(lu)工(gong)作(zuo)不(bu)正(zheng)常(chang)且(qie)UPS不(bu)具(ju)備(bei)無(wu)市(shi)電(dian)啟(qi)動(dong)功(gong)能(neng)時(shi)，UPS同(tong)樣(yang)會(kuai)關(guan)閉(bi)所(suo)有(you)輸(shu)出(chu)及(ji)顯(xian)示(shi)。
4）若(ruo)市(shi)電(dian)檢(jian)測(ce)電(dian)路(lu)工(gong)作(zuo)正(zheng)常(chang)，再(zai)檢(jian)查(cha)蓄(xu)電(dian)池(chi)電(dian)壓(ya)檢(jian)測(ce)電(dian)路(lu)是(shi)否(pi)正(zheng)常(chang)。
5、在(zai)接(jie)入(ru)市(shi)電(dian)的(di)情(qing)況(kuang)下(xia)，每(mei)次(ci)打(da)開(kai)UPS，便(pian)聽(yin)到(dao)繼(ji)電(dian)器(qi)反(fan)複(fu)的(di)動(dong)作(zuo)聲(sheng)，UPS麵(mian)板(pan)電(dian)池(chi)電(dian)壓(ya)過(guo)低(di)指(zhi)示(shi)燈(deng)長(zhang)亮(liang)且(qie)蜂(feng)鳴(ming)器(qi)長(zhang)鳴(ming)。
根(gen)據(ju)上(shang)述(shu)故(gu)障(zhang)現(xian)象(xiang)可(ke)以(yi)判(pan)斷(duan)：該(gai)故(gu)障(zhang)是(shi)由(you)蓄(xu)電(dian)池(chi)電(dian)壓(ya)過(guo)低(di)，從(zong)而(er)導(dao)致(zhi)UPS啟(qi)動(dong)不(bu)成(cheng)功(gong)而(er)造(zao)成(cheng)的(di)。拆(chai)下(xia)蓄(xu)電(dian)池(chi)，先(xian)進(jin)行(hang)均(jun)衡(heng)充(chong)電(dian)（所(suo)有(you)蓄(xu)電(dian)池(chi)並(bing)聯(lian)進(jin)行(hang)充(chong)電(dian)），若(ruo)仍(reng)不(bu)成(cheng)功(gong)，則(ze)隻(zhi)有(you)更(geng)換(huan)蓄(xu)電(dian)池(chi)。
6、一(yi)台(tai)後(hou)備(bei)UPS有(you)市(shi)電(dian)時(shi)工(gong)作(zuo)正(zheng)常(chang)，無(wu)市(shi)電(dian)時(shi)逆(ni)變(bian)器(qi)有(you)輸(shu)出(chu)，但(dan)輸(shu)出(chu)電(dian)壓(ya)偏(pian)低(di)，同(tong)時(shi)變(bian)壓(ya)器(qi)發(fa)出(chu)較(jiao)大(dai)的(di)噪(zao)音(yin)。
故(gu)障(zhang)分(fen)析(xi)：逆(ni)變(bian)器(qi)有(you)輸(shu)出(chu)說(shui)明(ming)末(mo)級(ji)驅(qu)動(dong)電(dian)路(lu)基(ji)本(ben)正(zheng)常(chang)，變(bian)壓(ya)器(qi)有(you)噪(zao)音(yin)說(shui)明(ming)推(tui)挽(wan)電(dian)路(lu)的(di)兩(liang)臂(bi)工(gong)作(zuo)不(bu)對(dui)稱(chen)，檢(jian)測(ce)步(bu)驟(zhou)如(ru)下(xia)：
1）檢(jian)查(cha)功(gong)率(shuai)是(shi)否(pi)正(zheng)常(chang)；
2）若(ruo)功(gong)率(shuai)正(zheng)常(chang)，再(zai)檢(jian)查(cha)脈(mo)寬(kuan)輸(shu)出(chu)電(dian)路(lu)輸(shu)出(chu)信(xin)號(hao)是(shi)否(pi)正(zheng)常(chang)；
3）若(ruo)脈(mo)寬(kuan)輸(shu)出(chu)電(dian)路(lu)輸(shu)出(chu)正(zheng)常(chang)，再(zai)檢(jian)查(cha)驅(qu)動(dong)電(dian)路(lu)的(di)輸(shu)出(chu)是(shi)否(pi)正(zheng)常(chang)。
7、在(zai)市(shi)電(dian)供(gong)電(dian)正(zheng)常(chang)時(shi)開(kai)啟(qi)UPS，逆(ni)變(bian)器(qi)工(gong)作(zuo)指(zhi)示(shi)燈(deng)閃(shan)爍(shuo)，蜂(feng)鳴(ming)器(qi)發(fa)出(chu)間(jian)斷(duan)叫(jiao)聲(sheng)，UPS隻(zhi)能(neng)工(gong)作(zuo)在(zai)逆(ni)變(bian)狀(zhuang)態(tai)，不(bu)能(neng)轉(zhuan)換(huan)到(dao)市(shi)電(dian)工(gong)作(zuo)狀(zhuang)態(tai)。
故(gu)障(zhang)分(fen)析(xi)：不(bu)能(neng)進(jin)行(hang)逆(ni)變(bian)供(gong)電(dian)向(xiang)市(shi)電(dian)供(gong)電(dian)轉(zhuan)換(huan)，說(shui)明(ming)逆(ni)變(bian)供(gong)電(dian)向(xiang)市(shi)電(dian)供(gong)電(dian)轉(zhuan)換(huan)部(bu)分(fen)出(chu)現(xian)了(liao)故(gu)障(zhang)，要(yao)檢(jian)測(ce)：
1）市(shi)電(dian)輸(shu)入(ru)保(bao)險(xian)絲(si)是(shi)否(pi)損(sun)壞(huai)；
2）若(ruo)市(shi)電(dian)輸(shu)入(ru)保(bao)險(xian)絲(si)完(wan)好(hao)，檢(jian)查(cha)市(shi)電(dian)整(zheng)流(liu)濾(lv)波(bo)電(dian)路(lu)輸(shu)出(chu)是(shi)否(pi)正(zheng)常(chang)；
3）若(ruo)市(shi)電(dian)整(zheng)流(liu)濾(lv)波(bo)電(dian)路(lu)輸(shu)出(chu)正(zheng)常(chang)，檢(jian)查(cha)市(shi)電(dian)檢(jian)測(ce)電(dian)路(lu)是(shi)否(pi)正(zheng)常(chang)；
4）若(ruo)市(shi)電(dian)檢(jian)測(ce)電(dian)路(lu)正(zheng)常(chang)，再(zai)檢(jian)查(cha)逆(ni)變(bian)供(gong)電(dian)向(xiang)市(shi)電(dian)供(gong)電(dian)轉(zhuan)換(huan)控(kong)製(zhi)輸(shu)出(chu)是(shi)否(pi)正(zheng)常(chang)。
8、後(hou)備(bei)式(shi)UPS當(dang)負(fu)載(zai)接(jie)近(jin)滿(man)載(zai)時(shi)，市(shi)電(dian)供(gong)電(dian)正(zheng)常(chang)，而(er)蓄(xu)電(dian)池(chi)供(gong)電(dian)時(shi)蓄(xu)電(dian)池(chi)保(bao)險(xian)絲(si)熔(rong)斷(duan)。
故(gu)障(zhang)分(fen)析(xi)：蓄(xu)電(dian)池(chi)保(bao)險(xian)絲(si)熔(rong)斷(duan)，說(shui)明(ming)蓄(xu)電(dian)池(chi)供(gong)電(dian)流(liu)過(guo)大(dai)，檢(jian)測(ce)步(bu)驟(zhou)如(ru)下(xia)：
1）逆(ni)變(bian)器(qi)是(shi)否(pi)擊(ji)穿(chuan)；
2）蓄(xu)電(dian)池(chi)電(dian)壓(ya)是(shi)否(pi)過(guo)低(di)；
3）若(ruo)蓄(xu)電(dian)池(chi)電(dian)壓(ya)過(guo)低(di)，再(zai)檢(jian)測(ce)蓄(xu)電(dian)池(chi)充(chong)電(dian)電(dian)路(lu)是(shi)否(pi)正(zheng)常(chang)；
4）若(ruo)蓄(xu)電(dian)池(chi)充(chong)電(dian)電(dian)路(lu)正(zheng)常(chang)，再(zai)檢(jian)測(ce)蓄(xu)電(dian)池(chi)電(dian)壓(ya)檢(jian)測(ce)電(dian)路(lu)工(gong)作(zuo)是(shi)否(pi)正(zheng)常(chang)。
9、UPS隻(zhi)能(neng)由(you)市(shi)電(dian)供(gong)電(dian)而(er)不(bu)能(neng)轉(zhuan)為(wei)逆(ni)變(bian)供(gong)電(dian)。
故(gu)障(zhang)分(fen)析(xi)：不(bu)能(neng)進(jin)行(hang)市(shi)電(dian)向(xiang)逆(ni)變(bian)供(gong)電(dian)轉(zhuan)換(huan)，說(shui)明(ming)市(shi)電(dian)向(xiang)逆(ni)變(bian)供(gong)電(dian)轉(zhuan)換(huan)部(bu)分(fen)出(chu)現(xian)故(gu)障(zhang)，要(yao)檢(jian)測(ce)：
1）蓄(xu)電(dian)池(chi)電(dian)壓(ya)是(shi)否(pi)過(guo)低(di)，蓄(xu)電(dian)池(chi)保(bao)險(xian)絲(si)是(shi)否(pi)完(wan)好(hao)；
2）若(ruo)蓄(xu)電(dian)池(chi)部(bu)分(fen)正(zheng)常(chang)，檢(jian)查(cha)蓄(xu)電(dian)池(chi)電(dian)壓(ya)檢(jian)測(ce)電(dian)路(lu)是(shi)否(pi)正(zheng)常(chang)；
3）若(ruo)蓄(xu)電(dian)池(chi)電(dian)壓(ya)檢(jian)測(ce)電(dian)路(lu)正(zheng)常(chang)，再(zai)檢(jian)查(cha)市(shi)電(dian)向(xiang)逆(ni)變(bian)供(gong)電(dian)轉(zhuan)換(huan)控(kong)製(zhi)輸(shu)出(chu)是(shi)否(pi)正(zheng)常(chang)。
