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后，由于項(xiang)目原因直(zhi)(zhi)流屏長(chang)期擱置不(bu)用(yong)或者(zhe)直(zhi)(zhi)流屏蓄(xu)電(dian)池(chi)(chi)管理不(bu)當，造成直(zhi)(zhi)流屏蓄(xu)電(dian)池(chi)(chi)失去活(huo)性，這時就需要進(jin)行蓄(xu)電(dian)池(chi)(chi)活(huo)化處(chu)理，那么什么是蓄(xu)電(dian)池(chi)(chi)活(huo)化呢？

通常，鉛(qian)酸蓄(xu)電(dian)(dian)(dian)池由于長期擱(ge)置不用，或者(zhe)由于長期欠充電(dian)(dian)(dian)，會導(dao)致活性(xing)物(wu)質主要是(shi)負(fu)極活性(xing)物(wu)質的(de)硫(liu)化(hua)(hua)失(shi)效，容量(liang)(liang)衰減，這時(shi)，可以(yi)(yi)進行幾次大(da)電(dian)(dian)(dian)流(liu)(liu)的(de)充電(dian)(dian)(dian)和放電(dian)(dian)(dian)以(yi)(yi)激活這些硫(liu)化(hua)(hua)的(de)活性(xing)物(wu)質，這個過(guo)程就(jiu)叫活化(hua)(hua)。直流(liu)(liu)屏蓄(xu)電(dian)(dian)(dian)池活化(hua)(hua)實(shi)際(ji)上就(jiu)是(shi)電(dian)(dian)(dian)池核對性(xing)容量(liang)(liang)試驗，通過(guo)試驗來得(de)知電(dian)(dian)(dian)池目前的(de)實(shi)際(ji)保(bao)有(you)容量(liang)(liang)。

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二、直流屏蓄電池放電試驗操作方法

直流(liu)屏蓄電(dian)(dian)池放(fang)電(dian)(dian)試驗每半年進(jin)行一次(ci)，放(fang)電(dian)(dian)負荷(he)為變(bian)電(dian)(dian)站(zhan)實際直流(liu)負荷(he)，必要時(shi)(shi)可以加入事(shi)故照明及逆變(bian)負荷(he)。考(kao)慮到變(bian)電(dian)(dian)站(zhan)事(shi)故處(chu)理的緊迫性，尤(you)其是煤礦地(di)面變(bian)電(dian)(dian)站(zhan)，每次(ci)放(fang)電(dian)(dian)時(shi)(shi)間(jian)不得低于2小時(shi)(shi)。蓄電(dian)(dian)池放(fang)電(dian)(dian)試驗應盡量(liang)選擇設備檢修(xiu)的時(shi)(shi)間(jian)，以避(bi)免因操作不當引(yin)起系(xi)統失電(dian)(dian)導致機(ji)電(dian)(dian)事(shi)故。

1、將直流屏微機監控單元切換到主界面(mian)，選擇參數顯示。檢查各運行(xing)參數均在正常范(fan)圍。

2、將(jiang)直(zhi)流(liu)屏(ping)交流(liu)進線(xian)開關斷(duan)開（兩(liang)路，先斷(duan)備(bei)用(yong)再斷(duan)主(zhu)用(yong)，避免(mian)不(bu)必(bi)要的交流(liu)電源(yuan)自動切換），高頻開關電源(yuan)整流(liu)器(qi)停止工作，蓄電池(chi)組(zu)即刻不(bu)間斷(duan)地向直(zhi)流(liu)母線(xian)供電。同(tong)時觀察微(wei)機監控(kong)單(dan)元參數顯示界面的變化（電池(chi)總電壓(ya)、單(dan)只蓄電池(chi)電壓(ya)、放電電流(liu)）。

3、放(fang)電(dian)(dian)試驗期間應每隔20分鐘對直流(liu)屏巡視(shi)記(ji)錄(lu)一(yi)次(ci)，記(ji)錄(lu)電(dian)(dian)池(chi)總電(dian)(dian)壓(ya)(ya)、單(dan)只蓄電(dian)(dian)池(chi)電(dian)(dian)壓(ya)(ya)、放(fang)電(dian)(dian)電(dian)(dian)流(liu)等的參數。放(fang)電(dian)(dian)開始(shi)第(di)一(yi)次(ci)記(ji)錄(lu)時(shi)用萬(wan)用表或標(biao)準電(dian)(dian)壓(ya)(ya)表核對一(yi)次(ci)單(dan)體(ti)電(dian)(dian)池(chi)電(dian)(dian)壓(ya)(ya)與觸摸屏顯示的蓄電(dian)(dian)池(chi)電(dian)(dian)壓(ya)(ya)是否相符(fu)，以避免傳感器故(gu)障造成的微機監(jian)控單(dan)元與實際蓄電(dian)(dian)池(chi)電(dian)(dian)壓(ya)(ya)不相符(fu)。

4、放電(dian)試驗期間應同時檢查各(ge)蓄電(dian)池本體有無(wu)異常（電(dian)池溫度(du)有無(wu)異常、有無(wu)鼓包、有無(wu)放電(dian)聲響）。

5、放(fang)電(dian)試驗過(guo)程中如有(you)單(dan)只(zhi)蓄電(dian)池(chi)的(de)電(dian)壓低于(yu)11V，應(ying)立即(ji)停止放(fang)電(dian)試驗，將交流進線恢復送電(dian)，記錄各項數據及(ji)放(fang)電(dian)時(shi)(shi)間（開始放(fang)電(dian)到(dao)終止放(fang)電(dian)的(de)時(shi)(shi)間）。如果有(you)單(dan)只(zhi)蓄電(dian)池(chi)低于(yu)11V的(de)應(ying)該考慮(lv)盡早更換整套全(quan)部電(dian)池(chi)，以確保萬(wan)無(wu)一失。

6、直流(liu)屏蓄(xu)電(dian)(dian)池(chi)(chi)總電(dian)(dian)壓放電(dian)(dian)如果(guo)在2小時之內(nei)減(jian)少到205V時（按照(zhao)廠家(jia)的技術資料要求到200V為(wei)止，考慮到實際放電(dian)(dian)試(shi)驗操作時，為(wei)避免人(ren)員因(yin)素(su)發現不及時造成過放電(dian)(dian)），應立即停止放電(dian)(dian)試(shi)驗，將(jiang)交(jiao)流(liu)進(jin)線恢復(fu)送電(dian)(dian)，即對蓄(xu)電(dian)(dian)池(chi)(chi)組進(jin)行充電(dian)(dian)，以免蓄(xu)電(dian)(dian)池(chi)(chi)過放電(dian)(dian)而損壞，如果(guo)不能立即恢復(fu)交(jiao)流(liu)進(jin)線供電(dian)(dian)，必(bi)須(xu)蓄(xu)電(dian)(dian)池(chi)(chi)組的放電(dian)(dian)總開關(guan)爭取在24小時內(nei)對蓄(xu)電(dian)(dian)池(chi)(chi)組進(jin)行充電(dian)(dian)。

記錄放(fang)(fang)電(dian)(dian)時間(jian)（開始(shi)放(fang)(fang)電(dian)(dian)到結(jie)束放(fang)(fang)電(dian)(dian)的時間(jian)）、初始(shi)和終止放(fang)(fang)電(dian)(dian)時的放(fang)(fang)電(dian)(dian)電(dian)(dian)流。如果(guo)出現上述情況(kuang)應(ying)該考慮盡早更換整套(tao)全(quan)部電(dian)(dian)池，以確保萬無一失。

三、直流屏蓄電池日常維護使用注意事項

1、直流屏調(diao)試(shi)運行(xing)后，整(zheng)流器(qi)應長期運行(xing)工作(zuo)，對蓄電(dian)(dian)(dian)池組進行(xing)充(chong)電(dian)(dian)(dian)和對母(mu)線供電(dian)(dian)(dian)，使(shi)蓄電(dian)(dian)(dian)池組保持滿(man)(man)容(rong)量的最(zui)佳工作(zuo)狀態，蓄電(dian)(dian)(dian)池組不(bu)能故意循(xun)(xun)環(huan)(huan)放(fang)電(dian)(dian)(dian)使(shi)用，以免蓄電(dian)(dian)(dian)池組因使(shi)用不(bu)當而損壞或大幅(fu)降低使(shi)用壽(shou)命（蓄電(dian)(dian)(dian)池循(xun)(xun)環(huan)(huan)放(fang)電(dian)(dian)(dian)即:將蓄電(dian)(dian)(dian)池充(chong)滿(man)(man)后停止整(zheng)流器(qi)工作(zuo)，用蓄電(dian)(dian)(dian)池放(fang)電(dian)(dian)(dian)供母(mu)線負載(zai)，蓄電(dian)(dian)(dian)池放(fang)電(dian)(dian)(dian)到終止電(dian)(dian)(dian)壓，又給蓄電(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)，如此循(xun)(xun)環(huan)(huan)使(shi)用。此行(xing)為會大幅(fu)降低蓄電(dian)(dian)(dian)池的使(shi)用壽(shou)命）。

2、直流屏所配(pei)蓄(xu)電池(chi)閑置6個月后(hou)（包括未安裝及(ji)安裝后(hou)未運行的情況(kuang)），必須對其(qi)進行補充(chong)電，以(yi)免蓄(xu)電池(chi)組因欠(qian)充(chong)而損壞或大(da)幅(fu)降低使用壽命。

特別(bie)提(ti)醒：現在很(hen)多(duo)變電站直(zhi)流(liu)屏蓄電池(chi)從安裝投運開始已(yi)經(jing)三四年了(le)，由(you)于(yu)當時技(ji)術(shu)力量(liang)欠缺或者(zhe)沒有仔細(xi)閱讀直(zhi)流(liu)屏使(shi)用(yong)說(shuo)明書，從來沒有進(jin)行過(guo)蓄電池(chi)的(de)放電試驗，此種情(qing)況(kuang)下，蓄電池(chi)壽命基本(ben)上已(yi)經(jing)大(da)打折(zhe)扣了(le)。