配電(dian)(dian)變(bian)壓(ya)(ya)器(qi)的(de)(de)低(di)壓(ya)(ya)側總過(guo)流(liu)(liu)(liu)保護熔(rong)斷(duan)(duan)器(qi)的(de)(de)額(e)(e)(e)定電(dian)(dian)流(liu)(liu)(liu)，應大于配電(dian)(dian)變(bian)壓(ya)(ya)器(qi)的(de)(de)低(di)壓(ya)(ya)側額(e)(e)(e)定電(dian)(dian)流(liu)(liu)(liu)，一般取額(e)(e)(e)定電(dian)(dian)流(liu)(liu)(liu)的(de)(de)1.5倍，熔(rong)體(ti)的(de)(de)額(e)(e)(e)定電(dian)(dian)流(liu)(liu)(liu)應按變(bian)壓(ya)(ya)器(qi)允許的(de)(de)過(guo)負(fu)荷(he)倍數和(he)熔(rong)斷(duan)(duan)器(qi)特性確(que)定。出線回路(lu)過(guo)流(liu)(liu)(liu)保護熔(rong)斷(duan)(duan)器(qi)的(de)(de)熔(rong)體(ti)額(e)(e)(e)定電(dian)(dian)流(liu)(liu)(liu)，不應大于總過(guo)流(liu)(liu)(liu)保護熔(rong)斷(duan)(duan)器(qi)的(de)(de)額(e)(e)(e)定電(dian)(dian)流(liu)(liu)(liu)，熔(rong)體(ti)的(de)(de)額(e)(e)(e)定電(dian)(dian)流(liu)(liu)(liu)按回路(lu)正常最大負(fu)荷(he)電(dian)(dian)流(liu)(liu)(liu)選擇(ze)，并應躲過(guo)正常的(de)(de)尖峰電(dian)(dian)流(liu)(liu)(liu)。

隨著電(dian)力電(dian)子技(ji)術(shu)和(he)變流(liu)(liu)控制技(ji)術(shu)的(de)飛(fei)速發展(zhan)，高(gao)精度可控變流(liu)(liu)技(ji)術(shu)的(de)成熟和(he)普(pu)及，分階(jie)段(duan)恒(heng)(heng)流(liu)(liu)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)模(mo)式(shi)已(yi)經(jing)基(ji)本被充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)電(dian)流(liu)(liu)和(he)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)電(dian)壓(ya)連續變化(hua)的(de)恒(heng)(heng)壓(ya)限(xian)(xian)(xian)流(liu)(liu)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)模(mo)式(shi)取代(dai)。主導充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)工藝(yi)的(de)還是恒(heng)(heng)壓(ya)限(xian)(xian)(xian)流(liu)(liu)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)模(mo)式(shi)。接(jie)觸式(shi)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)的(de)最大問(wen)題在(zai)于(yu)它(ta)的(de)安(an)全(quan)性和(he)通用(yong)性。為了使它(ta)滿足嚴(yan)格的(de)安(an)全(quan)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)標準，必須在(zai)電(dian)路上采用(yong)許(xu)多措施(shi)使充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)設備能(neng)夠在(zai)各種環境下安(an)全(quan)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)，恒(heng)(heng)壓(ya)限(xian)(xian)(xian)流(liu)(liu)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)和(he)分階(jie)段(duan)恒(heng)(heng)流(liu)(liu)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)均屬于(yu)接(jie)觸式(shi)充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)技(ji)術(shu)。新(xin)型(xing)的(de)電(dian)動(dong)汽車感(gan)應充(chong)(chong)(chong)(chong)(chong)(chong)(chong)電(dian)技(ji)術(shu)發展(zhan)很快。

昨日一大(da)早，焦作供電(dian)公司的(de)維修人員便來到塔北路(lu)農貿市場(chang)，在架(jia)設過低(di)的(de)配(pei)電(dian)箱周圍(wei)拉起警戒線，動用叉車等機械，對存(cun)在安全隱(yin)患的(de)配(pei)電(dian)箱重新架(jia)設。

電(dian)(dian)(dian)所及配電(dian)(dian)(dian)設(she)(she)備(bei)的布(bu)置(zhi)設(she)(she)計(ji)應便于(yu)安裝(zhuang)、操作、搬(ban)運、檢(jian)修、試(shi)驗(yan)和監(jian)測。高低壓配電(dian)(dian)(dian)室(shi)、變(bian)壓器室(shi)、電(dian)(dian)(dian)容器室(shi)、控制(zhi)室(shi)內，不應有與其無關的管道和線路通過。當然(ran)，即便充(chong)(chong)電(dian)(dian)(dian)站(zhan)技術(shu)瓶(ping)頸得到(dao)了很(hen)好的解(jie)決(jue)，但是充(chong)(chong)電(dian)(dian)(dian)站(zhan)建(jian)設(she)(she)可能還存在(zai)選址困(kun)難(nan)等(deng)問(wen)題。新(xin)能源汽車(che)應先以(yi)城市為主(zhu)，但繁(fan)華(hua)Ⅸ域往往用(yong)地(di)緊張，地(di)價(jia)成本較高，這方面(mian)需要政(zheng)府在(zai)政(zheng)策上能予以(yi)傾(qing)斜．推動(dong)充(chong)(chong)電(dian)(dian)(dian)設(she)(she)施的建(jian)設(she)(she)。由電(dian)(dian)(dian)力企業(ye)發展經營電(dian)(dian)(dian)動(dong)車(che)充(chong)(chong)電(dian)(dian)(dian)站(zhan)具有先天優勢。電(dian)(dian)(dian)力企業(ye)將電(dian)(dian)(dian)力直接賣(mai)給(gei)車(che)輛(liang)是一個新(xin)的業(ye)務，希望電(dian)(dian)(dian)力企業(ye)能轉變(bian)

配電箱是數(shu)(shu)據上(shang)的海量參(can)數(shu)(shu)，一般是構成低(di)壓(ya)(ya)林按電氣接線，要(yao)求將(jiang)開關(guan)設(she)(she)備、測量儀表(biao)、保(bao)護電器和(he)輔助設(she)(she)備組裝(zhuang)在封閉(bi)或半封閉(bi)金屬柜中(zhong)或屏幅上(shang)，構成低(di)壓(ya)(ya)配電箱。正常運行時(shi)可借助手動(dong)或自動(dong)開關(guan)接通(tong)或分斷電路(lu)。

這類開關柜采用鋼板制成封閉外殼，文山歐式箱變進出線回路的電器元件都安裝在可抽出的抽屜中，歐式箱變廠家構成(cheng)能(neng)完成(cheng)某(mou)一類供電(dian)任務的(de)(de)(de)功(gong)能(neng)單元。功(gong)能(neng)單元與母線(xian)或電(dian)纜之間，用(yong)接地的(de)(de)(de)金屬板或塑(su)料制成(cheng)的(de)(de)(de)功(gong)能(neng)板隔開(kai)，形成(cheng)母線(xian)、功(gong)能(neng)單元和電(dian)纜三個區域(yu)。每個功(gong)能(neng)單元之間也有隔離措施(shi)。抽屜(ti)(ti)式(shi)開(kai)關(guan)柜有較高的(de)(de)(de)可靠性(xing)、安全性(xing)和互換性(xing)，是比(bi)較先進(jin)的(de)(de)(de)開(kai)關(guan)柜，開(kai)關(guan)柜多數(shu)是指(zhi)抽屜(ti)(ti)式(shi)開(kai)關(guan)柜。它們(men)適用(yong)于要求供電(dian)可靠性(xing)較高的(de)(de)(de)工礦企業、高層建筑，作為集中控制的(de)(de)(de)配電(dian)中心。