一、直流屏蓄電池為什么要進行活化

直流屏蓄電池需要定時的進行充放電才能保持活性，直流屏廠家都知道這個道理，但是很多用戶購買了直流屏以(yi)后(hou)，由(you)于項目原因(yin)直流(liu)屏(ping)長期擱置不(bu)用或者直流(liu)屏(ping)蓄(xu)電池(chi)管理不(bu)當，造成直流(liu)屏(ping)蓄(xu)電池(chi)失去活性，這(zhe)時就(jiu)需要進行蓄(xu)電池(chi)活化(hua)處(chu)理，那(nei)么(me)什么(me)是蓄(xu)電池(chi)活化(hua)呢(ni)？

通常(chang)，鉛酸蓄(xu)(xu)電(dian)(dian)池(chi)(chi)由于(yu)長期(qi)擱置不用，或者由于(yu)長期(qi)欠(qian)充電(dian)(dian)，會導致(zhi)活(huo)(huo)性物(wu)(wu)質(zhi)主要(yao)是負極活(huo)(huo)性物(wu)(wu)質(zhi)的(de)硫(liu)(liu)化(hua)(hua)失效，容(rong)量(liang)衰減，這(zhe)時，可以進行幾次大(da)電(dian)(dian)流的(de)充電(dian)(dian)和放電(dian)(dian)以激(ji)活(huo)(huo)這(zhe)些(xie)硫(liu)(liu)化(hua)(hua)的(de)活(huo)(huo)性物(wu)(wu)質(zhi)，這(zhe)個過程就(jiu)叫活(huo)(huo)化(hua)(hua)。直流屏蓄(xu)(xu)電(dian)(dian)池(chi)(chi)活(huo)(huo)化(hua)(hua)實際上(shang)就(jiu)是電(dian)(dian)池(chi)(chi)核對性容(rong)量(liang)試驗，通過試驗來得知電(dian)(dian)池(chi)(chi)目前的(de)實際保有容(rong)量(liang)。

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二、直流屏蓄電池放電試驗操作方法

直流屏(ping)蓄(xu)電池(chi)放(fang)電試驗每半年進行(xing)一次(ci)，放(fang)電負(fu)荷為變(bian)(bian)電站實際直流負(fu)荷，必要(yao)時(shi)可以加入事(shi)故照(zhao)明(ming)及逆(ni)變(bian)(bian)負(fu)荷。考慮(lv)到變(bian)(bian)電站事(shi)故處理(li)的緊迫(po)性，尤其是煤礦(kuang)地面變(bian)(bian)電站，每次(ci)放(fang)電時(shi)間(jian)不(bu)得低于2小(xiao)時(shi)。蓄(xu)電池(chi)放(fang)電試驗應盡量選(xuan)擇(ze)設備檢修的時(shi)間(jian)，以避免因操作(zuo)不(bu)當引起系統(tong)失(shi)電導(dao)致機電事(shi)故。

1、將直(zhi)流屏微(wei)機(ji)監控單元切換到主界面，選擇參數(shu)顯示(shi)。檢查各運行參數(shu)均在正常范圍(wei)。

2、將直流屏(ping)交(jiao)流進線(xian)開(kai)關(guan)斷(duan)開(kai)（兩路，先斷(duan)備用再斷(duan)主用，避(bi)免不(bu)必要的交(jiao)流電(dian)(dian)源自動切換(huan)），高頻開(kai)關(guan)電(dian)(dian)源整流器停止工(gong)作(zuo)，蓄(xu)電(dian)(dian)池組即(ji)刻不(bu)間(jian)斷(duan)地向直流母線(xian)供電(dian)(dian)。同(tong)時觀(guan)察微機監(jian)控單(dan)(dan)元參數(shu)顯示界面的變化（電(dian)(dian)池總電(dian)(dian)壓、單(dan)(dan)只(zhi)蓄(xu)電(dian)(dian)池電(dian)(dian)壓、放電(dian)(dian)電(dian)(dian)流）。

3、放電(dian)(dian)(dian)試驗期間應每(mei)隔(ge)20分(fen)鐘(zhong)對直流(liu)(liu)屏(ping)(ping)巡視記錄一(yi)次，記錄電(dian)(dian)(dian)池(chi)(chi)總電(dian)(dian)(dian)壓(ya)、單只(zhi)蓄電(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)壓(ya)、放電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)等的(de)參數。放電(dian)(dian)(dian)開始第一(yi)次記錄時用萬用表或標準(zhun)電(dian)(dian)(dian)壓(ya)表核對一(yi)次單體電(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)壓(ya)與觸(chu)摸屏(ping)(ping)顯(xian)示的(de)蓄電(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)壓(ya)是(shi)否相符(fu)，以避免傳(chuan)感(gan)器故(gu)障造成(cheng)的(de)微機(ji)監控單元與實(shi)際蓄電(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)壓(ya)不相符(fu)。

4、放電試驗期間(jian)應(ying)同時檢查各蓄(xu)電池本(ben)體有無(wu)異(yi)常（電池溫度有無(wu)異(yi)常、有無(wu)鼓包、有無(wu)放電聲響）。

5、放(fang)(fang)電(dian)(dian)(dian)試驗過程中(zhong)如有單(dan)只蓄電(dian)(dian)(dian)池的(de)電(dian)(dian)(dian)壓低于(yu)11V，應(ying)立(li)即停(ting)止(zhi)放(fang)(fang)電(dian)(dian)(dian)試驗，將(jiang)交流進線恢復送(song)電(dian)(dian)(dian)，記錄各項(xiang)數據及放(fang)(fang)電(dian)(dian)(dian)時間(jian)（開始放(fang)(fang)電(dian)(dian)(dian)到終止(zhi)放(fang)(fang)電(dian)(dian)(dian)的(de)時間(jian)）。如果有單(dan)只蓄電(dian)(dian)(dian)池低于(yu)11V的(de)應(ying)該考(kao)慮(lv)盡(jin)早更換整套全部電(dian)(dian)(dian)池，以(yi)確保萬無一失。

6、直(zhi)流屏蓄(xu)電(dian)(dian)(dian)池(chi)總電(dian)(dian)(dian)壓放(fang)(fang)電(dian)(dian)(dian)如(ru)果(guo)在2小時之(zhi)內(nei)減少(shao)到205V時（按照(zhao)廠家的技術資料要求(qiu)到200V為(wei)止，考慮到實際放(fang)(fang)電(dian)(dian)(dian)試驗操(cao)作時，為(wei)避(bi)免人(ren)員因素發現不及(ji)時造(zao)成(cheng)過放(fang)(fang)電(dian)(dian)(dian)），應立即(ji)(ji)停止放(fang)(fang)電(dian)(dian)(dian)試驗，將交流進(jin)線(xian)恢(hui)復(fu)送(song)電(dian)(dian)(dian)，即(ji)(ji)對(dui)蓄(xu)電(dian)(dian)(dian)池(chi)組進(jin)行充電(dian)(dian)(dian)，以免蓄(xu)電(dian)(dian)(dian)池(chi)過放(fang)(fang)電(dian)(dian)(dian)而(er)損壞(huai)，如(ru)果(guo)不能(neng)立即(ji)(ji)恢(hui)復(fu)交流進(jin)線(xian)供電(dian)(dian)(dian)，必須蓄(xu)電(dian)(dian)(dian)池(chi)組的放(fang)(fang)電(dian)(dian)(dian)總開關爭取在24小時內(nei)對(dui)蓄(xu)電(dian)(dian)(dian)池(chi)組進(jin)行充電(dian)(dian)(dian)。

記錄放(fang)(fang)電(dian)時間（開始(shi)放(fang)(fang)電(dian)到結束放(fang)(fang)電(dian)的時間）、初始(shi)和終(zhong)止放(fang)(fang)電(dian)時的放(fang)(fang)電(dian)電(dian)流。如果出現上述情況應(ying)該考慮盡早更換整套全部電(dian)池，以確(que)保萬無一失。

三、直流屏蓄電池日常維護使用注意事項

1、直流屏調試運行(xing)后，整流器(qi)應長期運行(xing)工作(zuo)，對(dui)蓄電(dian)(dian)(dian)(dian)(dian)池(chi)組進行(xing)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)和(he)對(dui)母線(xian)供電(dian)(dian)(dian)(dian)(dian)，使(shi)蓄電(dian)(dian)(dian)(dian)(dian)池(chi)組保持滿(man)(man)容量的最佳工作(zuo)狀態，蓄電(dian)(dian)(dian)(dian)(dian)池(chi)組不能(neng)故意循環放(fang)電(dian)(dian)(dian)(dian)(dian)使(shi)用(yong)(yong)(yong)，以免蓄電(dian)(dian)(dian)(dian)(dian)池(chi)組因使(shi)用(yong)(yong)(yong)不當而損(sun)壞或大(da)幅降低(di)使(shi)用(yong)(yong)(yong)壽(shou)命(ming)（蓄電(dian)(dian)(dian)(dian)(dian)池(chi)循環放(fang)電(dian)(dian)(dian)(dian)(dian)即:將蓄電(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)滿(man)(man)后停(ting)止整流器(qi)工作(zuo)，用(yong)(yong)(yong)蓄電(dian)(dian)(dian)(dian)(dian)池(chi)放(fang)電(dian)(dian)(dian)(dian)(dian)供母線(xian)負載，蓄電(dian)(dian)(dian)(dian)(dian)池(chi)放(fang)電(dian)(dian)(dian)(dian)(dian)到終止電(dian)(dian)(dian)(dian)(dian)壓，又給蓄電(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)，如此循環使(shi)用(yong)(yong)(yong)。此行(xing)為會大(da)幅降低(di)蓄電(dian)(dian)(dian)(dian)(dian)池(chi)的使(shi)用(yong)(yong)(yong)壽(shou)命(ming)）。

2、直流(liu)屏所配蓄(xu)電池(chi)閑(xian)置6個(ge)月后（包(bao)括未安(an)裝(zhuang)及安(an)裝(zhuang)后未運行的情況），必須對其進行補充電，以免蓄(xu)電池(chi)組因(yin)欠充而損壞或大幅(fu)降低(di)使(shi)用壽命。

特別提醒：現在(zai)很(hen)多(duo)變電站(zhan)直流(liu)屏蓄電池從安裝投運開(kai)始已經三四年了，由于當(dang)時技術力量欠缺或(huo)者(zhe)沒(mei)有仔細閱讀(du)直流(liu)屏使用說明書，從來沒(mei)有進行過蓄電池的放(fang)電試(shi)驗，此種情(qing)況下，蓄電池壽命基本上已經大打折扣了。