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直流系統維護

2019/6/6 10:52:09??????點擊:

一、直流系統維護

1)高頻開(kai)關(guan)電源模塊內部灰塵(chen)定期(qi)清掃;
2)直流屏內灰(hui)塵定期清掃;
3)蓄電(dian)(dian)(dian)池每(mei)年應以(yi)實(shi)際負荷做一次放(fang)(fang)電(dian)(dian)(dian)放(fang)(fang)電(dian)(dian)(dian)應保(bao)持電(dian)(dian)(dian)流(liu)穩定,放(fang)(fang)出(chu)額定容量的30%左右(以(yi)0.1C放(fang)(fang)電(dian)(dian)(dian)3小時),放(fang)(fang)電(dian)(dian)(dian)每(mei)小時應測(ce)一次單體電(dian)(dian)(dian)池及電(dian)(dian)(dian)池組電(dian)(dian)(dian)壓、放(fang)(fang)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)、溫度(du)等(deng),放(fang)(fang)電(dian)(dian)(dian)后應進(jin)行均衡充電(dian)(dian)(dian)然后轉浮(fu)充進(jin)行。 
4)每月應(ying)測一次電(dian)(dian)池單體電(dian)(dian)壓及終端電(dian)(dian)壓,檢查外觀(guan)有無異常(chang)變形和發熱,并保持完整運行記錄。
5)每年應(ying)檢查一次連接導線是(shi)(shi)否牢固,是(shi)(shi)否有腐蝕、松動應(ying)擰緊至規定扭距,腐蝕應(ying)及時更換(huan);
6)不(bu)要(yao)單(dan)獨(du)增加或減少電(dian)(dian)池組中(zhong)幾個單(dan)體電(dian)(dian)池的(de)(de)負荷,這(zhe)將造成(cheng)單(dan)體電(dian)(dian)池容量的(de)(de)不(bu)平(ping)衡和充(chong)電(dian)(dian)的(de)(de)不(bu)均性(xing),降低電(dian)(dian)池的(de)(de)使用(yong)壽命。
7)常見故障及(ji)處理 
(1)蓄電(dian)(dian)(dian)(dian)(dian)(dian)池殼體異常(chang)。造(zao)成(cheng)原因有(you):充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)流過(guo)大(da),單只電(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)超(chao)過(guo)了2.4V,內部有(you)短路或局部放電(dian)(dian)(dian)(dian)(dian)(dian)、溫升超(chao)標、閥(fa)控失靈。處理方法:減小充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)流,降低充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya),檢查安全閥(fa)體是否堵死。 
(2)運行中浮充(chong)電(dian)壓(ya)正常(chang),但一放電(dian),電(dian)壓(ya)很快就下降到終止電(dian)壓(ya)值(zhi)原因(yin)是蓄(xu)電(dian)池內部失水干涸、電(dian)解物質(zhi)變(bian)質(zhi)。此時應(ying)通知廠家更換(huan)電(dian)池。
二(er)、應急處理的(de)原(yuan)則
A、電源系統(tong)故障的應急處(chu)理的基(ji)本原則是:維(wei)持系統(tong)的直流供電不中斷。
B、電源系統出現(xian)威脅(xie)通信安全(quan)或造(zao)成通信中斷的故(gu)障主要包括:交流(liu)電電路不(bu)可恢復性損壞;直(zhi)流(liu)負載(zai)或直(zhi)流(liu)配電發生短路;整流(liu)模塊(kuai)全(quan)部癱瘓;監(jian)控模塊(kuai)失控造(zao)成的關機事故(gu);直(zhi)流(liu)輸出過壓造(zao)成的模塊(kuai)封鎖(suo)等。
1)直流配(pei)電的應急處理
(1)負載(zai)(zai)局部短(duan)路:將損(sun)壞的(de)(de)(de)(de)負載(zai)(zai)直流斷(duan)路器斷(duan)開或(huo)(huo)(huo)饋(kui)電(dian)熔斷(duan)器分(fen)(fen)離(li)。(2)配電(dian)斷(duan)路:由于(yu)操作人員(yuan)的(de)(de)(de)(de)粗心或(huo)(huo)(huo)地震(zhen)等(deng)人為的(de)(de)(de)(de)或(huo)(huo)(huo)自然的(de)(de)(de)(de)因素造成的(de)(de)(de)(de)直流配電(dian)短(duan)路故障(zhang)將直接(jie)影(ying)響(xiang)直流系(xi)統(tong)的(de)(de)(de)(de)安(an)全。故障(zhang)發生(sheng)后,一般應按照以(yi)下步驟進行(xing)處理:切斷(duan)交流供(gong)電(dian);將電(dian)池強制(zhi)從系(xi)統(tong)中分(fen)(fen)離(li);利用電(dian)池或(huo)(huo)(huo)整流模塊(kuai)直接(jie)給負載(zai)(zai)供(gong)電(dian)。2)監控系(xi)統(tong)故障(zhang)的(de)(de)(de)(de)應急處理監控系(xi)統(tong)故障(zhang)影(ying)響(xiang)直流供(gong)電(dian)安(an)全時(shi),只需關掉監控模塊(kuai)即可(ke),但此(ci)時(shi)應注意(yi)電(dian)池的(de)(de)(de)(de)管理和維護。
3)模塊故障(zhang)的應急處理(li)
(1)模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)內部(bu)(bu)短路:模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)內部(bu)(bu)短路時能自動(dong)(dong)退出(chu)系統(tong)。(2)部(bu)(bu)分(fen)模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)損(sun)壞(huai):部(bu)(bu)分(fen)模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)損(sun)壞(huai)后,只(zhi)要(yao)剩余(yu)完(wan)好模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)能滿足(zu)負載供電要(yao)求(qiu),關(guan)(guan)掉(diao)損(sun)壞(huai)模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)的(de)交流(liu)電源即可(ke)。(3)模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)輸(shu)出(chu)過壓(ya):當負載電流(liu)低于單個模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)容量時,某(mou)一個模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)輸(shu)出(chu)過壓(ya)將造成(cheng)系統(tong)過壓(ya),所(suo)有模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)過壓(ya)保護,并且不能自動(dong)(dong)恢復(fu)。處理方法(fa)為(wei):關(guan)(guan)掉(diao)所(suo)有模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)的(de)交流(liu)開關(guan)(guan),然后逐一打(da)開模(mo)(mo)(mo)塊(kuai)(kuai)(kuai),當打(da)開某(mou)一模(mo)(mo)(mo)塊(kuai)(kuai)(kuai)系統(tong)再次出(chu)現過壓(ya)保護時,關(guan)(guan)掉(diao)該模(mo)(mo)(mo)塊(kuai)(kuai)(kuai),打(da)開其它模(mo)(mo)(mo)塊(kuai)(kuai)(kuai),系統(tong)即恢復(fu)正常工作了。
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