隨著電力電子技術和變流控制技術的飛速發展，高精度可控變流技術的成熟和普及，生產高壓開關柜分階段恒流充電模式已經基本被充電電流和充電電壓連續變化的恒壓限流充電模式取代。主導充電工藝的還是恒壓限流充電模式。高壓開關柜哪家好接(jie)觸式充(chong)(chong)電的最大問題在(zai)于它(ta)的安(an)全性(xing)和(he)通用性(xing)。為了使它(ta)滿(man)足(zu)嚴格(ge)的安(an)全充(chong)(chong)電標(biao)準，必須(xu)在(zai)電路上(shang)采用許多措施(shi)使充(chong)(chong)電設備(bei)能夠(gou)在(zai)各種環(huan)境下安(an)全充(chong)(chong)電，恒壓限流充(chong)(chong)電和(he)分階(jie)段恒流充(chong)(chong)電均屬于接(jie)觸式充(chong)(chong)電技術(shu)。新型的電動汽(qi)車感應(ying)充(chong)(chong)電技術(shu)發展很快。

對于配(pei)電(dian)變壓器容量在(zai)100kV·A及(ji)以(yi)上的配(pei)電(dian)箱(xiang)(xiang)體，在(zai)箱(xiang)(xiang)內(nei)散熱窗靠(kao)側壁處，應考(kao)慮到安裝溫(wen)控(kong)繼電(dian)器（JU-3型或JU-4超小型溫(wen)度(du)(du)繼電(dian)器）和軸流風機，安裝在(zai)控(kong)制電(dian)器板上方左側面的箱(xiang)(xiang)體上，以(yi)便(bian)使(shi)箱(xiang)(xiang)內(nei)溫(wen)度(du)(du)達到一(yi)定值時（如40℃）能自(zi)動(dong)(dong)啟動(dong)(dong)排氣扇，強行排出熱量以(yi)使(shi)箱(xiang)(xiang)體散熱。

用軟刷或吹風清除屏板插件(jian)和全部電(dian)磁開關零件(jian)的(de)積塵,并檢查控制柜內(nei)電(dian)器開關觸頭的(de)狀態(tai),接觸情(qing)況,線圈外表的(de)絕緣以及(ji)機(ji)械部件(jian)的(de)動作是否可靠(kao),更(geng)換(huan)熔(rong)絲(si)時,應使熔(rong)斷電(dian)流(liu)(liu)與該回路的(de)電(dian)流(liu)(liu)相(xiang)匹配。

改(gai)進原配電(dian)(dian)(dian)(dian)箱的低壓電(dian)(dian)(dian)(dian)容(rong)器(qi)(qi)組的接(jie)線方式，將其(qi)安(an)(an)裝位置由交流接(jie)觸器(qi)(qi)上(shang)樁頭，改(gai)成(cheng)接(jie)在(zai)配電(dian)(dian)(dian)(dian)箱低壓進線與計(ji)(ji)量(liang)表計(ji)(ji)之間。防止因運(yun)行中電(dian)(dian)(dian)(dian)容(rong)器(qi)(qi)電(dian)(dian)(dian)(dian)路發生缺相故障或電(dian)(dian)(dian)(dian)容(rong)器(qi)(qi)損(sun)壞時，造(zao)成(cheng)計(ji)(ji)量(liang)裝置計(ji)(ji)量(liang)不準確(que)。此外，電(dian)(dian)(dian)(dian)容(rong)器(qi)(qi)選(xuan)擇型號應(ying)為BSMJ系列產品，以保證元件質量(liang)可靠、安(an)(an)全運(yun)行。

配電變壓(ya)(ya)器(qi)(qi)的(de)(de)低壓(ya)(ya)側(ce)總過(guo)(guo)(guo)流(liu)(liu)(liu)保(bao)護(hu)熔(rong)(rong)斷(duan)器(qi)(qi)的(de)(de)額(e)(e)(e)定(ding)電流(liu)(liu)(liu)，應(ying)大于(yu)配電變壓(ya)(ya)器(qi)(qi)的(de)(de)低壓(ya)(ya)側(ce)額(e)(e)(e)定(ding)電流(liu)(liu)(liu)，一般取額(e)(e)(e)定(ding)電流(liu)(liu)(liu)的(de)(de)1.5倍，熔(rong)(rong)體(ti)的(de)(de)額(e)(e)(e)定(ding)電流(liu)(liu)(liu)應(ying)按變壓(ya)(ya)器(qi)(qi)允(yun)許的(de)(de)過(guo)(guo)(guo)負荷倍數和熔(rong)(rong)斷(duan)器(qi)(qi)特性確定(ding)。出線回路過(guo)(guo)(guo)流(liu)(liu)(liu)保(bao)護(hu)熔(rong)(rong)斷(duan)器(qi)(qi)的(de)(de)熔(rong)(rong)體(ti)額(e)(e)(e)定(ding)電流(liu)(liu)(liu)，不(bu)應(ying)大于(yu)總過(guo)(guo)(guo)流(liu)(liu)(liu)保(bao)護(hu)熔(rong)(rong)斷(duan)器(qi)(qi)的(de)(de)額(e)(e)(e)定(ding)電流(liu)(liu)(liu)，熔(rong)(rong)體(ti)的(de)(de)額(e)(e)(e)定(ding)電流(liu)(liu)(liu)按回路正常最大負荷電流(liu)(liu)(liu)選擇，并應(ying)躲過(guo)(guo)(guo)正常的(de)(de)尖峰電流(liu)(liu)(liu)。