一、高壓母線槽是什么

高壓母線槽是運用(yong)于(yu)大型變電(dian)(dian)(dian)(dian)(dian)站、供(gong)電(dian)(dian)(dian)(dian)(dian)系(xi)統(tong)(tong)、大型企業(ye)的(de)自(zi)備電(dian)(dian)(dian)(dian)(dian)廠(chang)中。它是以(yi)取代傳統(tong)(tong)的(de)裸排走(zou)線方式，除具有安(an)全、美(mei)觀、可靠的(de)特點(dian)外，還(huan)因高壓母線槽外殼(ke)是封閉(bi)的(de)，可以(yi)大大減(jian)少停電(dian)(dian)(dian)(dian)(dian)檢修次數，在輸(shu)送較大電(dian)(dian)(dian)(dian)(dian)流時(shi)，可消(xiao)除用(yong)雙(shuang)拼(pin)、三拼(pin)高壓電(dian)(dian)(dian)(dian)(dian)纜所帶來的(de)因電(dian)(dian)(dian)(dian)(dian)流分(fen)配不平衡而引(yin)起的(de)故障。確保供(gong)電(dian)(dian)(dian)(dian)(dian)的(de)可靠性。可廣泛用(yong)于(yu)10KV以(yi)下，2000A以(yi)內的(de)輸(shu)電(dian)(dian)(dian)(dian)(dian)系(xi)統(tong)(tong)。

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二、高壓母線槽的工作原理

高(gao)(gao)(gao)(gao)壓(ya)母(mu)線槽采(cai)用(yong)了高(gao)(gao)(gao)(gao)強度、高(gao)(gao)(gao)(gao)性能(neng)的DMC絕緣(yuan)支塊(kuai)夾(jia)緊(jin)式(shi)(shi)結(jie)構，具(ju)有良好的負載性能(neng)和(he)動(dong)熱穩定性；過載能(neng)力強、溫升低(di)。為加強絕緣(yuan)型(xing)全封閉式(shi)(shi)高(gao)(gao)(gao)(gao)壓(ya)母(mu)線槽，防護等級IP40，導電(dian)(dian)體(ti)由(you)高(gao)(gao)(gao)(gao)壓(ya)熱收縮套管(guan)全長塑封，使用(yong)地(di)區(qu)海拔高(gao)(gao)(gao)(gao)可達2000m。高(gao)(gao)(gao)(gao)壓(ya)母(mu)線槽取代傳統的裸(luo)排走線方式(shi)(shi)，采(cai)取封閉式(shi)(shi)封裝，可以大大減(jian)少停電(dian)(dian)檢修(xiu)次數，在輸送較大電(dian)(dian)流(liu)時(shi)，可消除(chu)用(yong)雙拼、三拼高(gao)(gao)(gao)(gao)壓(ya)電(dian)(dian)纜所帶來(lai)的因電(dian)(dian)流(liu)分配不平衡而(er)引起的故障(zhang)。確保供電(dian)(dian)的可靠性。

三、高壓母線槽的修理維護

1、高壓母線槽長期運行時(shi)至少(shao)每年(nian)定期檢修一次。

2、檢查總的(de)(de)負載電(dian)流(liu)不得(de)超過設計電(dian)流(liu)和主(zhu)母(mu)線槽的(de)(de)額(e)定電(dian)流(liu)。

3、高壓母(mu)(mu)線(xian)(xian)槽檢(jian)修前需對母(mu)(mu)線(xian)(xian)槽系統進行(xing)停(ting)電(dian)(dian)檢(jian)查！完全切(qie)斷母(mu)(mu)線(xian)(xian)槽所有電(dian)(dian)源！并(bing)用萬(wan)用電(dian)(dian)表(biao)測量導電(dian)(dian)體有無(wu)電(dian)(dian)壓，確(que)認母(mu)(mu)線(xian)(xian)槽系統未帶(dai)電(dian)(dian)方可例行(xing)檢(jian)修。防止(zhi)高電(dian)(dian)壓對操(cao)作人員構成身體傷害(hai)甚至死亡(wang)的嚴重事故！

4、高壓母線(xian)槽(cao)運行中，應不(bu)間斷查看(kan)整條系(xi)(xi)統(tong)(tong)(tong)的四周是(shi)否存在滲漏、噴水、潛在潮氣源(yuan)，是(shi)否存在對系(xi)(xi)統(tong)(tong)(tong)構成(cheng)威脅的重(zhong)物，以及對母線(xian)槽(cao)系(xi)(xi)統(tong)(tong)(tong)溫升構成(cheng)影響的熱源(yuan)，檢查有無(wu)異物進入母線(xian)槽(cao)內(nei)部。檢查母線(xian)槽(cao)系(xi)(xi)統(tong)(tong)(tong)零部件有無(wu)缺損、銹(xiu)蝕現象、支(zhi)架彈簧是(shi)否有合(he)適的彈力，發現問題(ti)后(hou)立即更換。

5、高壓(ya)母線(xian)槽(cao)長期(qi)(qi)運(yun)行時每年(nian)定期(qi)(qi)檢測一(yi)次接(jie)(jie)頭溫升，接(jie)(jie)頭溫升按照GB7251標(biao)準不超過(guo)70K為合格（環(huan)境溫度為40℃）。檢查所(suo)有母線(xian)槽(cao)接(jie)(jie)頭連接(jie)(jie)螺栓及導(dao)電體接(jie)(jie)觸部分(fen)(fen)(fen)是(shi)(shi)否有松(song)動現象。防(fang)止因松(song)動產生的(de)阻值增(zeng)高而使接(jie)(jie)頭產生發熱現象。檢查絕(jue)緣材(cai)料是(shi)(shi)否有老化現象。導(dao)電部分(fen)(fen)(fen)是(shi)(shi)否有熔化變(bian)形現象。如發現有相間接(jie)(jie)地、絕(jue)緣擊穿現象，應分(fen)(fen)(fen)段(duan)(duan)拆除并用耐壓(ya)測試儀分(fen)(fen)(fen)段(duan)(duan)檢查，找出故障，或重(zhong)新更換母線(xian)槽(cao)，或重(zhong)新進行絕(jue)緣包覆處理。檢查母線(xian)槽(cao)系統的(de)插(cha)接(jie)(jie)箱(xiang)插(cha)腳與(yu)母排接(jie)(jie)觸是(shi)(shi)否良(liang)好。

6、定(ding)期清(qing)除母(mu)線槽系統表面積塵，確保散熱良好。

7、母線槽系(xi)統檢(jian)修完畢(bi)，重新送電前(qian)，應檢(jian)查絕(jue)緣電阻并有完整的檢(jian)修記錄。