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配電(dian)箱原(yuan)理：

配電(dian)箱是按電(dian)氣接線要求將開(kai)關設備、測(ce)量儀表(biao)、保護電(dian)器和輔助(zhu)設備組裝在封閉或半封閉金屬柜(ju)中或屏幅上，構成低壓(ya)配電(dian)箱。正(zheng)常運行(xing)時可借(jie)(jie)助(zhu)手動或自動開(kai)關接通或分斷(duan)電(dian)路。故障或不正(zheng)常運行(xing)時借(jie)(jie)助(zhu)保護電(dian)器切(qie)斷(duan)電(dian)路或報警。借(jie)(jie)測(ce)量儀表(biao)可顯示(shi)運行(xing)中的各種參數，還可對某些電(dian)氣參數進(jin)行(xing)調整(zheng)，對偏離正(zheng)常工作(zuo)狀態進(jin)行(xing)提(ti)示(shi)或發(fa)出(chu)信號。

配電(dian)箱用途：

配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)具有體(ti)積小、安(an)裝(zhuang)簡(jian)便，技術性能特(te)殊(shu)、位置固定(ding)(ding)，配(pei)(pei)置功(gong)能獨特(te)、不受(shou)場地限制(zhi)，應用比較普遍，操作穩定(ding)(ding)可靠，空間利用率高(gao)，占地少且具有環保(bao)效應的(de)(de)特(te)點。是(shi)指揮供電(dian)(dian)(dian)(dian)(dian)(dian)線路(lu)中各(ge)種元器件合(he)理(li)(li)分配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)能的(de)(de)控制(zhi)中心，是(shi)可靠接納上端電(dian)(dian)(dian)(dian)(dian)(dian)源，正確(que)饋出荷載(zai)電(dian)(dian)(dian)(dian)(dian)(dian)能的(de)(de)控制(zhi)環節，也是(shi)獲取用戶對供電(dian)(dian)(dian)(dian)(dian)(dian)質量滿意與(yu)否的(de)(de)關鍵。提高(gao)動力配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)的(de)(de)操作可靠性，是(shi)創優質工程(cheng)的(de)(de)目標。 配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)的(de)(de)用途：合(he)理(li)(li)的(de)(de)分配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)能，方便對電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)開合(he)操作。有較高(gao)的(de)(de)安(an)全(quan)防護(hu)等級，能直觀的(de)(de)顯示電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)導(dao)通狀態。