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)流屏長期擱(ge)置不(bu)用或者直(zhi)流屏蓄(xu)(xu)(xu)電(dian)池管理不(bu)當(dang)，造成直(zhi)流屏蓄(xu)(xu)(xu)電(dian)池失去(qu)活(huo)性，這時就需(xu)要(yao)進(jin)行蓄(xu)(xu)(xu)電(dian)池活(huo)化處(chu)理，那(nei)么什么是蓄(xu)(xu)(xu)電(dian)池活(huo)化呢？

通常(chang)，鉛酸蓄電(dian)(dian)(dian)池(chi)由(you)于長(chang)期擱置(zhi)不(bu)用，或者由(you)于長(chang)期欠充電(dian)(dian)(dian)，會(hui)導致活(huo)性(xing)物質(zhi)(zhi)主要是負極活(huo)性(xing)物質(zhi)(zhi)的(de)硫化失效，容(rong)(rong)量衰減(jian)，這時(shi)，可以(yi)進行幾(ji)次大電(dian)(dian)(dian)流(liu)的(de)充電(dian)(dian)(dian)和放電(dian)(dian)(dian)以(yi)激活(huo)這些硫化的(de)活(huo)性(xing)物質(zhi)(zhi)，這個(ge)過程就叫活(huo)化。直流(liu)屏(ping)蓄電(dian)(dian)(dian)池(chi)活(huo)化實際上(shang)就是電(dian)(dian)(dian)池(chi)核(he)對性(xing)容(rong)(rong)量試驗(yan)，通過試驗(yan)來得知(zhi)電(dian)(dian)(dian)池(chi)目前的(de)實際保有容(rong)(rong)量。

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二、直流屏蓄電池放電試驗操作方法

直(zhi)流屏蓄(xu)電(dian)(dian)池放(fang)電(dian)(dian)試(shi)驗每半年進行一次，放(fang)電(dian)(dian)負荷為變電(dian)(dian)站實際直(zhi)流負荷，必要時可以加入事(shi)故(gu)照明及逆變負荷。考慮到(dao)變電(dian)(dian)站事(shi)故(gu)處理的緊迫性，尤其是(shi)煤(mei)礦地面變電(dian)(dian)站，每次放(fang)電(dian)(dian)時間(jian)不得低于(yu)2小時。蓄(xu)電(dian)(dian)池放(fang)電(dian)(dian)試(shi)驗應盡(jin)量(liang)選擇設備(bei)檢修的時間(jian)，以避免因操作不當引(yin)起(qi)系統失電(dian)(dian)導致(zhi)機電(dian)(dian)事(shi)故(gu)。

1、將直流屏(ping)微機監控單元(yuan)切(qie)換到主界面，選擇參數(shu)顯(xian)示。檢(jian)查各運(yun)行(xing)參數(shu)均在正常范圍。

2、將(jiang)直(zhi)流(liu)屏(ping)交流(liu)進(jin)線開(kai)關(guan)斷(duan)(duan)開(kai)（兩路(lu)，先斷(duan)(duan)備用(yong)(yong)再斷(duan)(duan)主(zhu)用(yong)(yong)，避免不必要的交流(liu)電(dian)(dian)(dian)源自動切換(huan)），高頻開(kai)關(guan)電(dian)(dian)(dian)源整(zheng)流(liu)器停止工作(zuo)，蓄電(dian)(dian)(dian)池組(zu)即刻不間斷(duan)(duan)地向直(zhi)流(liu)母線供電(dian)(dian)(dian)。同時觀察微機監控(kong)單元參數顯示界面的變(bian)化（電(dian)(dian)(dian)池總電(dian)(dian)(dian)壓、單只(zhi)蓄電(dian)(dian)(dian)池電(dian)(dian)(dian)壓、放電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)）。

3、放電(dian)試(shi)驗期間應每隔(ge)20分(fen)鐘(zhong)對直流屏巡視記(ji)(ji)錄一(yi)次(ci)，記(ji)(ji)錄電(dian)池(chi)總電(dian)壓、單(dan)只蓄電(dian)池(chi)電(dian)壓、放電(dian)電(dian)流等(deng)的(de)參數。放電(dian)開始第一(yi)次(ci)記(ji)(ji)錄時用萬用表(biao)或標準電(dian)壓表(biao)核對一(yi)次(ci)單(dan)體(ti)電(dian)池(chi)電(dian)壓與(yu)觸摸屏顯示的(de)蓄電(dian)池(chi)電(dian)壓是否(fou)相(xiang)符，以(yi)避免(mian)傳感(gan)器故障造(zao)成的(de)微(wei)機監控(kong)單(dan)元與(yu)實際蓄電(dian)池(chi)電(dian)壓不(bu)相(xiang)符。

4、放電(dian)(dian)試驗(yan)期間(jian)應(ying)同時檢查各蓄(xu)電(dian)(dian)池本(ben)體有(you)(you)無異(yi)常（電(dian)(dian)池溫度有(you)(you)無異(yi)常、有(you)(you)無鼓(gu)包(bao)、有(you)(you)無放電(dian)(dian)聲響）。

5、放(fang)電試驗過程中如(ru)有單(dan)只蓄電池(chi)(chi)的電壓(ya)低于11V，應立即停止放(fang)電試驗，將交流進線恢復送(song)電，記(ji)錄各項數據及放(fang)電時間（開始放(fang)電到(dao)終止放(fang)電的時間）。如(ru)果有單(dan)只蓄電池(chi)(chi)低于11V的應該考慮盡(jin)早(zao)更換整套全部(bu)電池(chi)(chi)，以(yi)確保萬(wan)無一失。

6、直流屏蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池總(zong)電(dian)(dian)(dian)(dian)(dian)(dian)壓放電(dian)(dian)(dian)(dian)(dian)(dian)如果在(zai)2小(xiao)時之內減少到205V時（按照廠家的技術(shu)資料要求到200V為止，考慮到實際放電(dian)(dian)(dian)(dian)(dian)(dian)試驗操作時，為避免(mian)人員因素發現不及(ji)時造成過(guo)放電(dian)(dian)(dian)(dian)(dian)(dian)），應立即停止放電(dian)(dian)(dian)(dian)(dian)(dian)試驗，將交流進(jin)(jin)線恢復(fu)送電(dian)(dian)(dian)(dian)(dian)(dian)，即對蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池組(zu)(zu)進(jin)(jin)行充電(dian)(dian)(dian)(dian)(dian)(dian)，以免(mian)蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池過(guo)放電(dian)(dian)(dian)(dian)(dian)(dian)而損(sun)壞(huai)，如果不能(neng)立即恢復(fu)交流進(jin)(jin)線供電(dian)(dian)(dian)(dian)(dian)(dian)，必(bi)須蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池組(zu)(zu)的放電(dian)(dian)(dian)(dian)(dian)(dian)總(zong)開(kai)關爭取在(zai)24小(xiao)時內對蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池組(zu)(zu)進(jin)(jin)行充電(dian)(dian)(dian)(dian)(dian)(dian)。

記錄放電(dian)(dian)(dian)時(shi)間(jian)（開始放電(dian)(dian)(dian)到結束放電(dian)(dian)(dian)的時(shi)間(jian)）、初始和終止放電(dian)(dian)(dian)時(shi)的放電(dian)(dian)(dian)電(dian)(dian)(dian)流。如果(guo)出現上述情況應該考慮盡(jin)早更換整套全部電(dian)(dian)(dian)池，以確保萬(wan)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)試運行(xing)(xing)后(hou)，整流器應長期(qi)運行(xing)(xing)工(gong)作(zuo)，對(dui)蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池組進(jin)行(xing)(xing)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)和對(dui)母線供電(dian)(dian)(dian)(dian)(dian)(dian)，使蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池組保持滿(man)容量的(de)最佳工(gong)作(zuo)狀(zhuang)態，蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池組不能故意循(xun)環放電(dian)(dian)(dian)(dian)(dian)(dian)使用，以免蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池組因使用不當而損壞或大幅降低使用壽命(ming)（蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池循(xun)環放電(dian)(dian)(dian)(dian)(dian)(dian)即:將(jiang)蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)滿(man)后(hou)停止(zhi)整流器工(gong)作(zuo)，用蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池放電(dian)(dian)(dian)(dian)(dian)(dian)供母線負載，蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池放電(dian)(dian)(dian)(dian)(dian)(dian)到終止(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)壓，又給蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，如此循(xun)環使用。此行(xing)(xing)為會大幅降低蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)池的(de)使用壽命(ming)）。

2、直(zhi)流(liu)屏所(suo)配蓄(xu)電池(chi)閑置(zhi)6個月后（包括未(wei)(wei)安裝及安裝后未(wei)(wei)運行的情(qing)況），必須對其進行補充電，以免蓄(xu)電池(chi)組因欠充而(er)損壞或大幅降(jiang)低使用壽命。

特別提(ti)醒(xing)：現在很多變(bian)電(dian)站(zhan)直流(liu)屏蓄電(dian)池從安裝投運開始已經三四年了，由于當(dang)時(shi)技(ji)術力(li)量欠缺或者沒有仔細閱讀(du)直流(liu)屏使用(yong)說明(ming)書(shu)，從來沒有進行過蓄電(dian)池的放電(dian)試驗，此(ci)種情況(kuang)下，蓄電(dian)池壽命基本(ben)上已經大打折扣(kou)了。