一、高壓母線槽和低壓母線槽區別
通過字面的意思可以簡單地區別:低壓母線槽用(yong)于運行(xing)低(di)壓電纜,高(gao)壓母線槽用(yong)于輸送高(gao)壓電纜。接下來小(xiao)編(bian)就來介紹兩者(zhe)的(de)材質和功能間的(de)不同:
1、一(yi)(yi)般情況下,1KV環(huan)境中使(shi)(shi)用(yong)的都(dou)是(shi)低(di)電(dian)壓(ya)(ya)母(mu)(mu)線線路(lu),在(zai)(zai)1kV以(yi)上(shang)的電(dian)壓(ya)(ya)環(huan)境中,都(dou)是(shi)高壓(ya)(ya)母(mu)(mu)線線路(lu),當然,也有根(gen)據現場環(huan)境來(lai)決(jue)定的。如(ru)一(yi)(yi)般的配電(dian)室都(dou)是(shi)低(di)壓(ya)(ya)母(mu)(mu)線路(lu)(注:能夠直接與(yu)電(dian)氣設備連接,均為低(di)壓(ya)(ya)環(huan)境,均為低(di)壓(ya)(ya)母(mu)(mu)線路(lu))。在(zai)(zai)送配電(dian)設備中,變壓(ya)(ya)器(qi)前(qian)的高壓(ya)(ya)母(mu)(mu)線都(dou)是(shi)高壓(ya)(ya)母(mu)(mu)線,與(yu)外(wai)部(bu)高壓(ya)(ya)電(dian)線連接,在(zai)(zai)這些部(bu)位使(shi)(shi)用(yong)高壓(ya)(ya)母(mu)(mu)線線路(lu)。
2、低(di)壓母(mu)線槽用(yong)于低(di)壓環(huan)境,高(gao)壓母(mu)線槽用(yong)于高(gao)壓環(huan)境,低(di)壓母(mu)線槽必須通過(guo)CCC認證,普通民眾(zhong)無(wu)法獲得高(gao)壓母(mu)線槽,不需要強制(zhi)性(xing)CCC認證。
3、高壓母線,是高壓電平的主線,一般采用高壓母線槽進行傳輸。高壓母線槽適用于(yu)大(da)型變電(dian)站和大(da)型企(qi)業,具(ju)有安全、美觀(guan)、可靠的(de)(de)特(te)點,因為高壓母線的(de)(de)外(wai)殼(ke)是(shi)封(feng)閉的(de)(de),可以(yi)大(da)大(da)減少斷電(dian)和大(da)修次數,而由于(yu)電(dian)流(liu)(liu)分布不平(ping)衡(heng)引起(qi)的(de)(de)電(dian)流(liu)(liu)分配不平(ping)衡(heng)所引起(qi)的(de)(de)故障,則可能是(shi)在輸送大(da)電(dian)流(liu)(liu)時由雙、三根高壓電(dian)纜引起(qi)的(de)(de)。
這里解(jie)釋下高低壓母(mu)(mu)線、主(zhu)母(mu)(mu)線、硬母(mu)(mu)線、低壓封閉(bi)母(mu)(mu)線槽與高強封閉(bi)母(mu)(mu)線槽的相關概念:
首(shou)先(xian),電壓(ya)等級平分(fen)為(wei)高(gao)電壓(ya)和低(di)電壓(ya),一般的功耗為(wei)低(di)電壓(ya)。發電廠的功率(lv)被(bei)提升到(dao)客戶端進行傳輸,然后由變(bian)壓(ya)器降低(di)。變(bian)壓(ya)器原高(gao)壓(ya)接線(xian)(xian)為(wei)母(mu)線(xian)(xian)。
其次,具有高電壓等(deng)級(ji)的(de)主線(xian)(xian)(xian)(xian)為(wei)母(mu)(mu)線(xian)(xian)(xian)(xian),母(mu)(mu)線(xian)(xian)(xian)(xian)一般采用矩(ju)形或圓(yuan)形截面裸導線(xian)(xian)(xian)(xian)或雙絞線(xian)(xian)(xian)(xian),匯流條用于(yu)收集、分(fen)配和(he)傳輸電能(neng)。該結構分(fen)為(wei)硬母(mu)(mu)線(xian)(xian)(xian)(xian)和(he)軟母(mu)(mu)線(xian)(xian)(xian)(xian)。硬母(mu)(mu)線(xian)(xian)(xian)(xian)也分(fen)為(wei)矩(ju)形母(mu)(mu)線(xian)(xian)(xian)(xian)和(he)管狀母(mu)(mu)線(xian)(xian)(xian)(xian)。本(ben)發(fa)明的(de)軟母(mu)(mu)線(xian)(xian)(xian)(xian)結構簡單方(fang)便(bian),成本(ben)低廉。對于(yu)室外,因為(wei)空(kong)間很(hen)大(da),所以線(xian)(xian)(xian)(xian)可以擺(bai)動,并且線(xian)(xian)(xian)(xian)路到線(xian)(xian)(xian)(xian)路的(de)距離不夠(gou)。
二、低壓母線槽絕緣電阻要求
母線槽絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)件(jian)產品(pin)的(de)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)(zu)值與母(mu)(mu)(mu)線(xian)槽(cao)的(de)長度(du)、周(zhou)圍環境的(de)濕度(du)和溫度(du)有(you)關,對(dui)低壓母(mu)(mu)(mu)線(xian)槽(cao)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)件(jian)進行絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)(zu)測量(liang)(liang)時,可(ke)采用500V絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)(zu)表,一般不(bu)能低于(yu)0.5M。國內母(mu)(mu)(mu)線(xian)槽(cao)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)件(jian)制造廠對(dui)每(mei)(mei)單元的(de)母(mu)(mu)(mu)線(xian)槽(cao)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)件(jian)規定絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)(zu)不(bu)低于(yu)20M,通常(chang)能達到500M。每(mei)(mei)節母(mu)(mu)(mu)線(xian)槽(cao)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)件(jian)相(xiang)與相(xiang)及相(xiang)與外殼之間的(de)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)(zu)不(bu)低于(yu)20M,這是低要求,通常(chang)每(mei)(mei)節母(mu)(mu)(mu)線(xian)槽(cao)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)(zu)值可(ke)達到500 M;每(mei)(mei)安裝好一個單元母(mu)(mu)(mu)線(xian)槽(cao)后應測量(liang)(liang)母(mu)(mu)(mu)線(xian)槽(cao)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)件(jian)的(de)電(dian)阻(zu)(zu)(zu),允(yun)(yun)許總絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)(zu)逐漸下(xia)降,但不(bu)允(yun)(yun)許有(you)突變(bian),且總絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)阻(zu)(zu)(zu)不(bu)應小于(yu)0.5 M 。