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，由于項目原因(yin)直(zhi)流(liu)(liu)屏長期(qi)擱置不(bu)用或者直(zhi)流(liu)(liu)屏蓄(xu)(xu)電(dian)池(chi)管理不(bu)當，造成(cheng)直(zhi)流(liu)(liu)屏蓄(xu)(xu)電(dian)池(chi)失去活(huo)性，這時就需要(yao)進行蓄(xu)(xu)電(dian)池(chi)活(huo)化(hua)處理，那么(me)什么(me)是(shi)蓄(xu)(xu)電(dian)池(chi)活(huo)化(hua)呢？

通(tong)常，鉛酸蓄電池由于(yu)長期擱置(zhi)不用(yong)，或者由于(yu)長期欠(qian)充(chong)電，會(hui)導致活(huo)(huo)性(xing)(xing)(xing)物質主要是(shi)負極活(huo)(huo)性(xing)(xing)(xing)物質的(de)硫(liu)化失效，容量(liang)衰減(jian)，這(zhe)時，可以進行幾次大電流(liu)的(de)充(chong)電和放(fang)電以激活(huo)(huo)這(zhe)些硫(liu)化的(de)活(huo)(huo)性(xing)(xing)(xing)物質，這(zhe)個過(guo)程就叫活(huo)(huo)化。直流(liu)屏蓄電池活(huo)(huo)化實際上就是(shi)電池核對性(xing)(xing)(xing)容量(liang)試(shi)驗(yan)，通(tong)過(guo)試(shi)驗(yan)來(lai)得知(zhi)電池目前的(de)實際保有容量(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(mei)半(ban)年進行一(yi)次，放(fang)電(dian)(dian)負荷(he)為變(bian)電(dian)(dian)站實際(ji)直流(liu)負荷(he)，必(bi)要時可以(yi)(yi)加入事故照明(ming)及逆變(bian)負荷(he)。考慮到變(bian)電(dian)(dian)站事故處(chu)理的緊(jin)迫性，尤其是煤礦(kuang)地面(mian)變(bian)電(dian)(dian)站，每(mei)次放(fang)電(dian)(dian)時間不得低(di)于(yu)2小時。蓄電(dian)(dian)池放(fang)電(dian)(dian)試驗應盡量選(xuan)擇設備檢修(xiu)的時間，以(yi)(yi)避免因操作不當引起系統(tong)失電(dian)(dian)導致機(ji)電(dian)(dian)事故。

1、將直(zhi)流屏微機監控(kong)單元切換到主界(jie)面，選擇參數顯示。檢(jian)查各(ge)運行參數均在正常(chang)范圍(wei)。

2、將(jiang)直流(liu)屏交流(liu)進線開關斷(duan)開（兩路(lu)，先斷(duan)備用(yong)(yong)再斷(duan)主用(yong)(yong)，避免不(bu)(bu)必要(yao)的(de)交流(liu)電(dian)源自動切(qie)換(huan)），高頻開關電(dian)源整流(liu)器停止工作，蓄電(dian)池組即(ji)刻不(bu)(bu)間斷(duan)地向直流(liu)母線供電(dian)。同時觀(guan)察微機監控單元參數顯(xian)示(shi)界面的(de)變化（電(dian)池總電(dian)壓(ya)、單只(zhi)蓄電(dian)池電(dian)壓(ya)、放電(dian)電(dian)流(liu)）。

3、放電(dian)(dian)試驗期間應每隔20分鐘(zhong)對(dui)直流(liu)屏(ping)巡視記錄(lu)一次，記錄(lu)電(dian)(dian)池總(zong)電(dian)(dian)壓(ya)(ya)、單(dan)只蓄電(dian)(dian)池電(dian)(dian)壓(ya)(ya)、放電(dian)(dian)電(dian)(dian)流(liu)等的(de)(de)參數。放電(dian)(dian)開(kai)始第一次記錄(lu)時用(yong)萬用(yong)表(biao)或標(biao)準電(dian)(dian)壓(ya)(ya)表(biao)核(he)對(dui)一次單(dan)體電(dian)(dian)池電(dian)(dian)壓(ya)(ya)與(yu)觸摸(mo)屏(ping)顯示的(de)(de)蓄電(dian)(dian)池電(dian)(dian)壓(ya)(ya)是否(fou)相(xiang)符，以(yi)避免(mian)傳(chuan)感器故障造成(cheng)的(de)(de)微機監控(kong)單(dan)元與(yu)實際蓄電(dian)(dian)池電(dian)(dian)壓(ya)(ya)不相(xiang)符。

4、放電(dian)試驗期間應同(tong)時檢查各蓄電(dian)池本體有無異常(chang)（電(dian)池溫度有無異常(chang)、有無鼓包(bao)、有無放電(dian)聲(sheng)響）。

5、放(fang)電(dian)試驗過(guo)程中如有單只蓄(xu)(xu)電(dian)池(chi)(chi)(chi)的(de)電(dian)壓低于11V，應立即停止放(fang)電(dian)試驗，將交流進線恢(hui)復送電(dian)，記錄各項數據(ju)及放(fang)電(dian)時間（開始放(fang)電(dian)到終止放(fang)電(dian)的(de)時間）。如果有單只蓄(xu)(xu)電(dian)池(chi)(chi)(chi)低于11V的(de)應該考慮盡早更換整套全(quan)部電(dian)池(chi)(chi)(chi)，以確保萬無一失。

6、直流(liu)屏蓄(xu)電(dian)(dian)池總電(dian)(dian)壓放(fang)(fang)電(dian)(dian)如果(guo)在2小時之內(nei)減少到(dao)205V時（按照廠家的(de)技術(shu)資料要求(qiu)到(dao)200V為(wei)止(zhi)，考慮到(dao)實際放(fang)(fang)電(dian)(dian)試驗操(cao)作(zuo)時，為(wei)避(bi)免(mian)人員因素發現(xian)不(bu)及時造成過放(fang)(fang)電(dian)(dian)），應立即(ji)停止(zhi)放(fang)(fang)電(dian)(dian)試驗，將交(jiao)流(liu)進(jin)(jin)(jin)線恢復(fu)送電(dian)(dian)，即(ji)對蓄(xu)電(dian)(dian)池組進(jin)(jin)(jin)行(xing)充電(dian)(dian)，以免(mian)蓄(xu)電(dian)(dian)池過放(fang)(fang)電(dian)(dian)而損壞，如果(guo)不(bu)能立即(ji)恢復(fu)交(jiao)流(liu)進(jin)(jin)(jin)線供電(dian)(dian)，必須蓄(xu)電(dian)(dian)池組的(de)放(fang)(fang)電(dian)(dian)總開關爭取在24小時內(nei)對蓄(xu)電(dian)(dian)池組進(jin)(jin)(jin)行(xing)充電(dian)(dian)。

記(ji)錄放(fang)(fang)電(dian)(dian)時間(jian)（開始放(fang)(fang)電(dian)(dian)到結束放(fang)(fang)電(dian)(dian)的(de)(de)時間(jian)）、初(chu)始和終止放(fang)(fang)電(dian)(dian)時的(de)(de)放(fang)(fang)電(dian)(dian)電(dian)(dian)流。如果出(chu)現(xian)上述情況應該(gai)考慮盡(jin)早更(geng)換整套全部(bu)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、直流屏調試運(yun)(yun)行(xing)(xing)后，整(zheng)(zheng)流(liu)器應長期運(yun)(yun)行(xing)(xing)工作，對(dui)蓄(xu)(xu)電(dian)(dian)(dian)(dian)池組進行(xing)(xing)充(chong)電(dian)(dian)(dian)(dian)和對(dui)母線供電(dian)(dian)(dian)(dian)，使(shi)(shi)(shi)(shi)蓄(xu)(xu)電(dian)(dian)(dian)(dian)池組保持滿(man)容(rong)量的最佳工作狀(zhuang)態(tai)，蓄(xu)(xu)電(dian)(dian)(dian)(dian)池組不能故意循(xun)環(huan)放(fang)電(dian)(dian)(dian)(dian)使(shi)(shi)(shi)(shi)用(yong)(yong)，以免蓄(xu)(xu)電(dian)(dian)(dian)(dian)池組因使(shi)(shi)(shi)(shi)用(yong)(yong)不當而損壞或大幅(fu)降低(di)(di)使(shi)(shi)(shi)(shi)用(yong)(yong)壽(shou)命（蓄(xu)(xu)電(dian)(dian)(dian)(dian)池循(xun)環(huan)放(fang)電(dian)(dian)(dian)(dian)即:將蓄(xu)(xu)電(dian)(dian)(dian)(dian)池充(chong)滿(man)后停(ting)止(zhi)整(zheng)(zheng)流(liu)器工作，用(yong)(yong)蓄(xu)(xu)電(dian)(dian)(dian)(dian)池放(fang)電(dian)(dian)(dian)(dian)供母線負載，蓄(xu)(xu)電(dian)(dian)(dian)(dian)池放(fang)電(dian)(dian)(dian)(dian)到終止(zhi)電(dian)(dian)(dian)(dian)壓，又(you)給蓄(xu)(xu)電(dian)(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)(dian)，如此(ci)循(xun)環(huan)使(shi)(shi)(shi)(shi)用(yong)(yong)。此(ci)行(xing)(xing)為會大幅(fu)降低(di)(di)蓄(xu)(xu)電(dian)(dian)(dian)(dian)池的使(shi)(shi)(shi)(shi)用(yong)(yong)壽(shou)命）。

2、直流屏所(suo)配蓄(xu)電池閑置6個月后（包括未(wei)安(an)裝(zhuang)及安(an)裝(zhuang)后未(wei)運(yun)行的情況），必須(xu)對(dui)其(qi)進行補充(chong)(chong)電，以免蓄(xu)電池組因(yin)欠(qian)充(chong)(chong)而損壞或大幅降(jiang)低(di)使用壽命。

特別提醒：現在很多變(bian)電(dian)站直流屏(ping)蓄電(dian)池從安裝投運開始已(yi)經三(san)四年(nian)了(le)，由于當時技術力量欠缺(que)或者沒有(you)仔細(xi)閱讀直流屏(ping)使用(yong)說明書，從來沒有(you)進行過蓄電(dian)池的放電(dian)試驗，此種情況(kuang)下，蓄電(dian)池壽命基本上已(yi)經大打折扣了(le)。