密集母線槽的安裝應該注意什么
發布日期：2024-06-13 08:50:00
目前，低(di)壓(ya)配(pei)電(dian)(dian)柜(ju)(ju)采用(yong)母(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)作為進(jin)線(xian)(xian)(xian)(xian)連(lian)(lian)接(jie)，一(yi)般(ban)為柜(ju)(ju)上進(jin)線(xian)(xian)(xian)(xian)，按(an)有關規范(fan)要(yao)求(qiu)，三相母(mu)(mu)排(pai)(pai)(pai)的(de)排(pai)(pai)(pai)列(lie)(lie)(lie)方(fang)式(shi)按(an)低(di)壓(ya)配(pei)電(dian)(dian)柜(ju)(ju)型號以及生產廠家的(de)不同，大致(zhi)可分為兩(liang)(liang)種：水平排(pai)(pai)(pai)列(lie)(lie)(lie)布(bu)(bu)置(zhi)(zhi)(zhi)和(he)引(yin)下(xia)線(xian)(xian)(xian)(xian)的(de)排(pai)(pai)(pai)列(lie)(lie)(lie)布(bu)(bu)置(zhi)(zhi)(zhi)，依此(ci)排(pai)(pai)(pai)列(lie)(lie)(lie)次(ci)序。從柜(ju)(ju)前看，水平排(pai)(pai)(pai)列(lie)(lie)(lie)布(bu)(bu)置(zhi)(zhi)(zhi)從前到(dao)(dao)后(hou)為N、L3、L2，L1。引(yin)下(xia)線(xian)(xian)(xian)(xian)的(de)排(pai)(pai)(pai)列(lie)(lie)(lie)布(bu)(bu)置(zhi)(zhi)(zhi)由左到(dao)(dao)右(you)為LI、L2、L3、N。另(ling)一(yi)方(fang)面，眾所周知，變壓(ya)器(qi)(qi)(qi)低(di)壓(ya)套管排(pai)(pai)(pai)列(lie)(lie)(lie)次(ci)序為N、L1、L2、L3，變壓(ya)器(qi)(qi)(qi)在變壓(ya)器(qi)(qi)(qi)室內(nei)安(an)裝按(an)照設(she)計要(yao)求(qiu)，一(yi)般(ban)高壓(ya)側(ce)向內(nei)，低(di)壓(ya)側(ce)向外。當(dang)低(di)壓(ya)配(pei)電(dian)(dian)柜(ju)(ju)進(jin)線(xian)(xian)(xian)(xian)母(mu)(mu)線(xian)(xian)(xian)(xian)采用(yong)水平布(bu)(bu)置(zhi)(zhi)(zhi)時(shi)母(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)與變壓(ya)器(qi)(qi)(qi)之間不必換(huan)相，只需增加過(guo)渡接(jie)片(pian)即可，但當(dang)低(di)壓(ya)配(pei)電(dian)(dian)柜(ju)(ju)進(jin)線(xian)(xian)(xian)(xian)母(mu)(mu)線(xian)(xian)(xian)(xian)采用(yong)引(yin)下(xia)式(shi)布(bu)(bu)置(zhi)(zhi)(zhi)時(shi)，由于(yu)相位(wei)不同母(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)不能直(zhi)接(jie)作為低(di)壓(ya)進(jin)線(xian)(xian)(xian)(xian)連(lian)(lian)接(jie)變壓(ya)器(qi)(qi)(qi)和(he)低(di)壓(ya)配(pei)電(dian)(dian)柜(ju)(ju)、因此(ci)母(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)要(yao)通(tong)過(guo)換(huan)相才能連(lian)(lian)接(jie)。方(fang)法是(shi)：可通(tong)過(guo)母(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)換(huan)相節(jie)方(fang)式(shi)連(lian)(lian)接(jie)，也可采用(yong)進(jin)線(xian)(xian)(xian)(xian)輔(fu)助箱(xiang)(可安(an)裝在柜(ju)(ju)頂(ding)，通(tong)過(guo)箱(xiang)內(nei)母(mu)(mu)線(xian)(xian)(xian)(xian)換(huan)位(wei)(一(yi)般(ban)是(shi)使零母(mu)(mu)線(xian)(xian)(xian)(xian)換(huan)位(wei))，達到(dao)(dao)母(mu)(mu)線(xian)(xian)(xian)(xian)槽(cao)(cao)兩(liang)(liang)端設(she)備同相位(wei)正確連(lian)(lian)接(jie)。
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