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(you)于(yu)項目原(yuan)因直流屏長期擱置不(bu)用或者直流屏蓄(xu)(xu)電池管理不(bu)當，造成直流屏蓄(xu)(xu)電池失去活(huo)性，這時(shi)就需要(yao)進行蓄(xu)(xu)電池活(huo)化(hua)處(chu)理，那(nei)么(me)什(shen)么(me)是(shi)蓄(xu)(xu)電池活(huo)化(hua)呢？

通常，鉛(qian)酸蓄電(dian)池(chi)由于(yu)長期擱(ge)置不用，或者(zhe)由于(yu)長期欠充(chong)電(dian)，會導致(zhi)活(huo)性(xing)物質(zhi)主要是負(fu)極活(huo)性(xing)物質(zhi)的(de)硫(liu)化失效，容量(liang)衰減，這時，可以進行幾次(ci)大電(dian)流的(de)充(chong)電(dian)和放電(dian)以激(ji)活(huo)這些硫(liu)化的(de)活(huo)性(xing)物質(zhi)，這個過程就叫活(huo)化。直流屏蓄電(dian)池(chi)活(huo)化實(shi)際(ji)上就是電(dian)池(chi)核對性(xing)容量(liang)試驗，通過試驗來得知(zhi)電(dian)池(chi)目前的(de)實(shi)際(ji)保有容量(liang)。

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二、直流屏蓄電池放電試驗操作方法

直流屏(ping)蓄電(dian)池放(fang)(fang)電(dian)試(shi)驗每半年(nian)進行(xing)一(yi)次，放(fang)(fang)電(dian)負(fu)荷為變(bian)電(dian)站實際直流負(fu)荷，必要時可以加入事故(gu)照明(ming)及逆變(bian)負(fu)荷。考慮(lv)到變(bian)電(dian)站事故(gu)處理的緊迫性，尤其(qi)是(shi)煤礦地面變(bian)電(dian)站，每次放(fang)(fang)電(dian)時間(jian)不得低于2小時。蓄電(dian)池放(fang)(fang)電(dian)試(shi)驗應盡量(liang)選擇設備(bei)檢修的時間(jian)，以避免因操作不當引起(qi)系統失電(dian)導致(zhi)機電(dian)事故(gu)。

1、將直流屏微機監控(kong)單元切(qie)換到主界(jie)面，選擇參數顯(xian)示。檢查各運行參數均在正(zheng)常范圍。

2、將(jiang)直(zhi)流(liu)屏交流(liu)進線開(kai)關(guan)斷開(kai)（兩(liang)路(lu)，先斷備(bei)用再斷主(zhu)用，避免不必要的交流(liu)電(dian)(dian)(dian)源(yuan)自動切換），高頻開(kai)關(guan)電(dian)(dian)(dian)源(yuan)整(zheng)流(liu)器停止(zhi)工(gong)作(zuo)，蓄(xu)電(dian)(dian)(dian)池組即刻不間斷地(di)向(xiang)直(zhi)流(liu)母線供(gong)電(dian)(dian)(dian)。同時觀察微機監控(kong)單元(yuan)參數(shu)顯(xian)示界面的變化(hua)（電(dian)(dian)(dian)池總電(dian)(dian)(dian)壓、單只蓄(xu)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)試驗期間(jian)應每隔20分鐘對直流屏(ping)巡視(shi)記錄一(yi)次，記錄電(dian)池(chi)(chi)總電(dian)壓(ya)、單只蓄電(dian)池(chi)(chi)電(dian)壓(ya)、放電(dian)電(dian)流等的參數。放電(dian)開始第一(yi)次記錄時用(yong)萬用(yong)表(biao)或標準電(dian)壓(ya)表(biao)核對一(yi)次單體電(dian)池(chi)(chi)電(dian)壓(ya)與觸摸屏(ping)顯示的蓄電(dian)池(chi)(chi)電(dian)壓(ya)是否相符，以(yi)避免傳(chuan)感(gan)器故障造成的微機監控(kong)單元與實際蓄電(dian)池(chi)(chi)電(dian)壓(ya)不相符。

4、放電(dian)試(shi)驗期間應同時檢查(cha)各蓄電(dian)池本(ben)體(ti)有無(wu)(wu)異常(chang)（電(dian)池溫度有無(wu)(wu)異常(chang)、有無(wu)(wu)鼓包、有無(wu)(wu)放電(dian)聲響）。

5、放(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)試驗(yan)過程中(zhong)如(ru)有單只蓄電(dian)(dian)(dian)(dian)(dian)(dian)池的電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)低于11V，應立即(ji)停(ting)止(zhi)放(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)試驗(yan)，將交(jiao)流進線恢(hui)復送(song)電(dian)(dian)(dian)(dian)(dian)(dian)，記錄各項數(shu)據及(ji)放(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)時(shi)間（開始放(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)到終止(zhi)放(fang)(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)的時(shi)間）。如(ru)果有單只蓄電(dian)(dian)(dian)(dian)(dian)(dian)池低于11V的應該(gai)考慮盡早更換整套(tao)全部電(dian)(dian)(dian)(dian)(dian)(dian)池，以確保萬無一(yi)失。

6、直流(liu)(liu)屏蓄電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)總電(dian)(dian)(dian)(dian)(dian)壓放(fang)電(dian)(dian)(dian)(dian)(dian)如果在2小時之內減少到205V時（按照廠家的(de)技術資料(liao)要求到200V為(wei)止(zhi)，考慮到實(shi)際放(fang)電(dian)(dian)(dian)(dian)(dian)試驗操作時，為(wei)避(bi)免(mian)人員因素發現不及時造(zao)成過放(fang)電(dian)(dian)(dian)(dian)(dian)），應立即停止(zhi)放(fang)電(dian)(dian)(dian)(dian)(dian)試驗，將交流(liu)(liu)進(jin)線(xian)恢復送電(dian)(dian)(dian)(dian)(dian)，即對蓄電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)組進(jin)行充(chong)電(dian)(dian)(dian)(dian)(dian)，以免(mian)蓄電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)過放(fang)電(dian)(dian)(dian)(dian)(dian)而損壞，如果不能立即恢復交流(liu)(liu)進(jin)線(xian)供電(dian)(dian)(dian)(dian)(dian)，必(bi)須蓄電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)組的(de)放(fang)電(dian)(dian)(dian)(dian)(dian)總開關爭取在24小時內對蓄電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)組進(jin)行充(chong)電(dian)(dian)(dian)(dian)(dian)。

記錄放(fang)電(dian)(dian)(dian)時間(jian)（開始放(fang)電(dian)(dian)(dian)到(dao)結束(shu)放(fang)電(dian)(dian)(dian)的時間(jian)）、初始和終止(zhi)放(fang)電(dian)(dian)(dian)時的放(fang)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)。如果出現上述情況應該考慮盡早(zao)更(geng)換整套全部電(dian)(dian)(dian)池，以(yi)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)行后，整(zheng)流器應(ying)長(chang)期運(yun)行工作(zuo)，對(dui)蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)組(zu)進行充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)和對(dui)母線(xian)供(gong)電(dian)(dian)(dian)(dian)(dian)，使(shi)蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)組(zu)保持(chi)滿(man)容量(liang)的最(zui)佳工作(zuo)狀態，蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)組(zu)不(bu)(bu)能故意循(xun)環(huan)放(fang)電(dian)(dian)(dian)(dian)(dian)使(shi)用，以免蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)組(zu)因使(shi)用不(bu)(bu)當(dang)而損壞或大幅降(jiang)低使(shi)用壽命（蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)循(xun)環(huan)放(fang)電(dian)(dian)(dian)(dian)(dian)即:將蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)滿(man)后停止整(zheng)流器工作(zuo)，用蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)放(fang)電(dian)(dian)(dian)(dian)(dian)供(gong)母線(xian)負載，蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)放(fang)電(dian)(dian)(dian)(dian)(dian)到終止電(dian)(dian)(dian)(dian)(dian)壓，又給(gei)蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)，如此循(xun)環(huan)使(shi)用。此行為會(hui)大幅降(jiang)低蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的使(shi)用壽命）。

2、直流屏(ping)所配蓄電池閑置6個月后（包(bao)括未安裝及安裝后未運行的(de)情況），必須對(dui)其進(jin)行補充電，以免蓄電池組因欠充而損(sun)壞(huai)或大幅降低使用壽(shou)命(ming)。

特別提醒：現在很多變電(dian)(dian)站直流屏蓄(xu)電(dian)(dian)池(chi)從(cong)安裝投運(yun)開始已經三四年了，由(you)于當時技術力量欠缺或(huo)者沒有仔細閱讀直流屏使用說明書，從(cong)來沒有進(jin)行(xing)過蓄(xu)電(dian)(dian)池(chi)的放電(dian)(dian)試驗，此種情況下(xia)，蓄(xu)電(dian)(dian)池(chi)壽命基本上(shang)已經大打折(zhe)扣了。